Transcript for:
Calculator Features Overview

let's turn it on button that's for the first time I turned it on so what can you do with this calculator with this calculator you can do all basic calculation so you can do statistical calculation you can do distribution we can do polynomials such as quadratic cubic and quartic up to degree 4 calculation simultaneous equation or system of equation you can generate table of value of two function f of x and G of X full spreadsheet which you can use formula and calculation and your spreadsheet we can do inequality calculation we can do full complex calculation we can do a base calculation like binary decimal hexadecimal conversion with some basic digital calculations we can do ratio calculation we can do also Vector calculation we can do Matrix such as adding subtracting squaring Matrix inverse and mix Matrix determinant and many other features so it has something called math box where you can do calling one two or three dice or flipping one or two or three coins hi welcome to a video tutorial from quizzers my name is Ahmad Shamshiri a Persian from Khorasan. this is a full manual for Casio FX 991cw and Casio fx570cw this is a classless calculator the difference between FX 991 and 570 is that 991 has this solar cell otherwise they are exactly the same this is a full manual that covers everything so please select chapters after you watch this video fully a larger screen click on this area of the player you will see the menu when you touch it so you can see all the chapters and touch to move to that section of the video so enjoy and subscribe so this is a calculator very Sleek design a special textures on this side the cases where you can just put it here and start using it this side is shorter and this has extra piece so you can remove it and put it the same way to turn on the calculator we press this button here cover it off we press the shift key and AC this AC is all clear we press it and the calculator will be turned off we can set the timing for the calculator to be turned off either at 10 minutes or 60 minutes which we are going to learn next let's power on the calculator back and in order to do in order to be in the same screen let's reset or initialize the calculator by pressing this button here and then go down once twice you will see the reset and then press ok after that go down once twice initialize all okay and then and yes also okay and after that press exe this is very important that we have to press EXE to press to exit from this screen now our calculator has the same settings for the keys we have this up and down arrow key which you can go up for example right down or left by pressing the key which you are going to see and then we have the OK button here okay it's very important key and then we are and then we have the page up page down because sometimes on the screen you need to scroll so much with up and down this is very quick this is called page app page down so you can do that and also we have exe and okay these two are in most cases they are exactly the same when we say execute is equal okay so pay attention but sometimes you will see that it will not does the same thing now if you want to print Pi Pi is the second function of this 7 here if you pay attention Pi is here so you press shift and seven to get pi and when you press shift you will see this on the screen the S on the screen you see that s and all the keys that are operating with shift, they are all yellow and if I press shift and five, we will see B on the screen. example this this is square root of something but if I press shift it will be log logarithm this key is 4 but if I press shift and press 4 it will be a see this on the screen it means we are in math mode math and math out mode which will see 1 over 200 for example you can type it like that and then we if you see the same thing it can be Mass n decimal out which the result will be displayed this way or that way but keep in mind that this is very important sign on the screen if your calculator shows d if your calculator shows D it means the unit is degree it can be could be gradient and radian if you see fax it means we have set it to fix three decimal places for example or any other value but it will help you to understand if you see e it means as working with engineering if you see this I an angle it is a complex result of your calculation if this sign is on it means there is enough light and the solar power is activated on 991 CW n57cw there is no solar cell and if you see these two arrows it means we have more result uh we can go up and down and now let's see at the apps if we press home key then we have all these apps for example General calculator calculation statistical calculation distribution spreadsheet generate table of value for f of x or G of X and then inequality complex Base number such as binary decimal hexadecimal or octal and then we can generate some table of value for functions you can do quadratic cubic cortex and system of equation calculation finding roots and then we can do ->Matrix-Calculation here uh the myth this is the Matrix for Matrix determinant Matrix inverse addition subtraction Vector calculation finding angles and adding subtracting ratio calculation and then math box such as coin toss or dice or dice roll and then for the menu if I if I press this settings you will see we can select calculator setting if I select input output then we can see all these options for example we can have math and math out is already selected press OK and then all clear so we exited now if we do 1 divided by 200 the answer will be displayed like that do not worry but if we go to again to settings calculator settings and then input output this time if we go to math and decimal out and then press OK and then all clear now let's do one divided by 200 and equal you will see that the answer shows like this that's also another reason which I'm going to soon explain it but first let's see the how can you set the brightness of your calculator so press home and then make sure you are in this mode and then system settings come here settings and then contrast you see we see both dark so we see dark and bright and the two arrows are here so you can make it lighter as you can see and you can make it darker if you want once you're done press all clear to exit the calculator contrast have been set if the calculator setting cannot change it means you need to change the battery let's reset it again go to reset initialize all yes and then exe this is very important to understand that we go to calculator setting number format and normal calculator setting number format and then go to normal and in here let's select normal one okay and then all clear now that one depends on if we go to calculator setting under input output and this time let's select line n line out and then all clear so here this is very important to pay attention if you are a normal one then only the value that are less than this value 0.01 which also is 10 to the power -2 it will be displayed as a decimal otherwise it will be shown as exponential and of course the absolute value of x is if it is greater than 10 to the power 10 it will be shown as exponential uh like this for example if you have 1 divided by 4 it will be shown at 0.02 because it's greater than this value and if you have 1 divided by 200 because the answer will be smaller than this it will be shown like 10 5 10 10 to the power minus 3 but if you have 1 divided by 6 because it is greater than this value it shows as a decimal now if you go in normal 2 then the absolute value of x if it is smaller than less than 10 to the power minus 9 or greater than 10 to the power 10 it will be shown as a decimal because this is minus 2 minus 2 means you can display up to this value 0.00 but total zeros are nine so you can get decimal this is what you should set your calculator to a normal two mode now we can set the if you press calculator setting select calculator setting and then angle unit from here you can go up and down and select degree radian and gradient and as you can see we have this radio buttons where you can select whichever you want to select and then press OK and after that all clear you will see it has changed to Radian and then if you go to format number again settings calculator settings number format and then if we select fix and in this screen in this screen we see fx3 let's select fix three and then all clear to exit and now in fix three if we do one divided by six the answer will be with fix three decimal places and if we go to scientific go to settings calculator setting number format and then this is called scientific notation and if we select scientific notation with three decimal places three significant digits and then press all clear 1 divided by 6 will be displayed like that three significant digits here and if you go to calculator settings and an engineering symbol and if you turn it on now it was off and then all clear to exit 1 divided by 4 will shown as 250 Milli because that is 250 Milli or if you do 1 divided by 2000 this time it will be 500 micro so very useful now let's turn it off go to settings engineering symbol and turn it off all clear Exit 1 divided by 4 it will return back to normal and Depends this depends on Normand or Norm two that you have calculator settings reset initialize yes exe now let's see how we can enter this value we press 4 and then this button here and then the cursor moved down 5 with the arrow go to the right and then plus because we are entering this value and then three fraction we go down two and then here's e x e and the answer is displayed like that settings calculator setting come down to fraction result we will see these two options next and improper let's select improper and then all clear now let's do this 5 divided by 4 goes to the arrow plus 3 divided by 2 and then press equal sign you will see the answer like that and we can change it back to Max fraction go to calculator setting fraction result and then mixed and all clear if we go to calculator setting, we can set the complex result settings calculator setting. complex result and here we can see that we can get a rectangular format or polar format whichever you prefer from here you can change it and the answer will be presented in that I'm going with a rectangle and we can also set the decimal Mark go to settings and decimal Mark here you can set dot or comma depending if I select comma or if I do 1 divided by 6 we will see comma like this but I prefer dot so I can go back calculator setting decimal Mark dot all clear and now if I press equal sign it change to Dot now if we go to calculator settings and then come down until you see digit separator okay you will see on and off if you select it on right now it's off and then all clear now you can say let's say you wanna all clear 332 567 if I press equal sign you see there is a space and if you don't want a space just go and disable it that's what I'm gonna do I can go jump with this digit separator of all clear and if I press equal sign it got closer back now let's go to power off it's under the system setting settings go down system settings and then auto power on or off you can select set 10 or 60 whichever you prefer and at that time it will turn off and then we have multi-setting under settings multi align font setting press button go to this and then multi-line font and in here you can see normal and small if you selected if you select small and equal this will work when you set when you use LINE mode and line mode then it will work so let me change it let me change it to line mode so go to calculator setting and then select line mode and then all clear 1 divided by 6 you see it became very small, but it allows you to see multiple lines so you see we can see even three lines with all the answers let's go to the to catalog this is the catalog button unless initialize the calculator so go reset initialize all yes exe so we are on the same setting so we have if I press this we will see we have a function and Analytics and then we have probability numerical calculation hyperbolic calculation hyperbolic angle and coordinate and then if I come here engineering. and scientific constant unit conversion and others so all these features when we select them they will be activated which I'm going to explain all of them with examples and then we have tools if I all clear if I press this button that's my tool and this now shows undo and depending on the app that you select it will change for example if I go to this go to home and select table you will see this now if I press this you will see the options that's why this tool depends on the app so I'm going I'm pressing home and then go to normal calculation if you want to do 2 times 50 divided by 2 2 times open parenthesis 50 divided by 2 these are the two parentheses and then and then equal if you want to print 2 pi so we put in 2 shift and then 7 which is pi and then exe so we get that 2 pi if we wanted it something like this you can omit this multiplication and this one so just press three open parenthesis 50 divided by 2 and then press equal so you can skip this closing parenthesis and multiplication and it will work fine. and if you want to do for example this line like that you can do 4 times sine four times for example sign the opening is already there just 30 close it multiply by 3 plus 10 times 5 3 plus 10 times 5 close and then exe you got the result but you can do it like that skipping this multiplication this multiplication and this closing and let me show you four sine 30 close it open another parenthesis three plus uh 10 times 5 and you get the same answer and if you want to change from 30 to 45 so here's how you do just press this button come here the cursor is there just and press this button and then type 45 and then equal so you can simply change at the same value and if you want to change let's say for 4 to 14 in that case we press this button so we press this button the cursor goes there and then press this key it goes at the beginning at the end and then just add one and exe and you simply change that and let's say if you want to do six divided by two one plus two and if I press equal sign you will see that it adds extra practice for me and if you do 6 divided by 2 pi six divided by 2 and then pi you will see that it has changed it to this format by adding the parameter so that's autocomplete now let's see how we can do this one to do that we press shift and then this key after that we type 3 and then with the arrow go to the right and one come down two and go to the right. plus after plus we press shift this button so it gives us the space five go to the right 3 and then divided by 2 and then EXE so we get the answer if you want to do 2 plus minus 5 minus 5 we do 2 plus this is the minus with uh shift so shift and -5 EXE execute press equal sign and you get the answer let's say you have something like this and you want to write it like that for that let's do all clear one plus seven over now in this case six so we go with arrow once twice the arrow moves and here and then we have to press insert press shift insert if this key here the arrow has changed and then we can press square root, and everything will be under the square root and then equal and that's the answer and if you have something like this and you want to change it and remove the square root here is how you do it just press backspace and then press delete that will be deleted and then equal sign and that will be the answer. over now let's see if we enter this one. 4 over 5 come to the right Plus 3 over 2 execute that the answer because we are in math and math out but if you go to line in line and line out plus settings calculator input and go to line and light out exit now you can if you do this the answer will be displayed like that so 4 over 5 you see it displayed like that plus three over two and the answer will be displayed like that and the same way line and line out we can have one over one one one that's a mixed fraction let's see one and then one over one two three four five six equal and now let's reset our calculator so, we are on the same page. now let's see how we can do the Something 2 to the power 5 plus 4 to the power 2 so 2 that is to the power of anything that you want press it type 5 then now we have to come to the right and then Plus 4 because this is now squared for the square we have a dedicated button here immediately press equal sign and you get the answer if you want to enter if you want to do cube root of 5 squared open the parenthesis 5 squared and then close it this button cubed and then press equal sign if you want to do something like this three plus two to the power of this so all clear 3 plus 2 and then to the power at the top now you can two plus for example 4 and then equal if you want to do something like that open Apprentice two and then it's very important that you press this to get out of the square root and then plus 2 otherwise it will go underneath it close and then multiply by and then you do need to put multiply just put square root and three execute and that's the answer now if you want to do fifth root of something we have to use this button here with a shift all clear now I'm pressing shift square root now I can enter five and then with the arrow 32 and then equal and that's the answer if you want to do 5 to the power minus 5 shift this button and that is inverted for us if you want to do something like 1 times 10 to the power if you want to do one some number times 10 to the power let's say 3 so you put 1 and then decimal so, 1.23 and times 10 is here already so we press these times 3. times 10 and automatically it goes to the top so we can type 3 and EXE and that is the answer some other samples you can enter these are the values that you can enter the value cannot be out of these ranges for example in this case H should be less than 100 and greater than one so these are the limitations that you see now let's see Power and root let's do this one 10 square root of 2 and then plus 15. times 3 and square root of 3. so the answer is very nice the enter 999 square root of nine thousand you will not get the Frac the square root sign because this is above the range now for pi let's say we want to put four pi to Type 4 pipe press shift and seven that's pi and if you want to put Euler number shift and eight that is the Euler number if I press equal you get the number let's see how we can look at the calculation history I already have done let's say 2 plus 2 equal and then 3 plus 3 equal and then let's say sine of 18 equal now if I press up and down arrow key you can see the result and also it shows this arrow that we have more now if we don't have anything because the calculator was restarted so this way you can go to the calculator history this screen go down here press it again and you will have new result here because if I come down there is nothing and see three plus three was before it and sign and then after that because we replied it we replayed it now let's see if I if I divide 1 divided by 6 press equal it's shown like that but if you want to change it you can press the format button which is at the bottom I show you just press format and then select decimal and you will see that decimal value and if you want to go back to Max fraction for example format mixed fraction it will show like that let's say pi divided by 6 let's do shift pi divided by 6 equal that's shown like that but proper pi over 6 but we can select format decimal and you will see the decimal value if you press equal sign again it will bring it back let’s, say 5.5 equal sign is shown like that but you can see Max fraction format you will see it like that and if I press equal sign again it will change now let's see how we can do prime factorization prime factorization should be always. positive and it should be less than 10 digits let's say you want to do prime factorization of one zero one four e x e and then press format the format button I've shown it and select here prime factor and it will be factors for you let's type two three four five press equal after that format and then come here select engineering notation and then press equal you will see it like this but pay attention that we have these two arrows which means if I go to the left the number of significant digits will change and you will see this is now to the power 3. now the same number can be represented this way with a power 6 or 9 or even 12 or you can go also this way and it shows that you cannot do that so but that's also you can play all clear and also to exit from that press this button you can exit as well with the return key now let's see how we can do sexual decimal or degree minutes second calculation let's say 1.25 and then press equal and you want to convert it to this Exile decimal press format and then come down until you see sexual decimal and it has been converted to one degree 15 minutes and 0 seconds and let's say we want to enter 2 degree 15 minutes and 30 seconds so here is how we do it two shift and degree is this degree minutes second is this plus sign process I press shift and then this plus sign and then 50 shift plus sign now don't worry about it 30 so 50 degrees second and then press exe it says syntax error let's say all clear and then here we have to also press shift and then sample now press equal now properly is shown now if you want to do let's say some numbers this one doesn't have degree this has just 9 minutes and 30 seconds you we have to do it you have to do it like this let's say I'm going back here Plus zero shift degrees and then nine shift minute and then 30 shift the symbol and that's the answer let's say you want to convert this to decimal you see there's no degrees so you have to do zero shift degree 25 minute and then 36 second press equal you see we got because I forgot and shift seconds press equal to get proper answer now to convert this to decimal press format and go decimal it'll be it will be converted now we have 9 degrees and 18 seconds we want to convert it to decimal we have so we have to add for the minute nine shift and then then zero shift minute and 36 shift seconds now to convert it to decimal plus format go decimal and you will get a decimal so format is very important now let's see how we can use memory with this calculator now let's see if you want to do 35 Plus 444 and the answer is 479 but later on you want to subtract it from thousand so we want to get 1000 subtracted by 4.7 479 let's do 35 Plus 444 and then press equal sign now we can press 1000 and answer one thousand minus answer key is in here and then exe it will get the result and divide it for you but we have these memories variables A B C D E F and then X Y and Z where you can store values and to access them we press this button here that is for variable and out we have two arrows so let's say you want to store 3 plus 5 into a all clear so here 3 plus 5 and exe press this button select which memory you want and then let's say a and here from this screen store and it's done to see it now if I press all clear to see it if I press this button you see we can see any other value or you can press and recall and you will see on the you will see it on the screen and press equal if you want to see it if you want to do some calculation you can do that now let's see 777-777 and you if you want to store it to B plus self equal and this button and then press ok and then store and it is stored you want to change b equal 100 so press this button go to B and then select edit and here's type 100 and then press equal and now as you can see it has changed to recall B I'm pressing alt clear press this variable and then go to B and recall you will see now B you can do B let's say let's say divided by two that will be divided clear all memory press the setting reset variable memory and then okay and now let's see how we can do derivative calculation with this calculator we can evaluate derivative and the answer is only number so let's reset our calculator so we are on the same settings setting reset initialize all yes exe all clear and for example if we have a function f of x 2x squared plus 5x if this is a position of an object if you take the derivative the derivative will be velocity the derivative of this function will be our velocity and so we need to have one the function and then x value for the function and then the tolerance the tolerance is optional and we can do the derivative in math in math out on or math and in decimal mode as well as the other mode so for this let's go for the f of x to x square plus 5. we have to write it on the screen and the question would be to evaluate the derivative of the evaluate the velocity at 3 seconds and evaluate the velocity at four seconds which means take the derivative and evaluate it with 3 and take the derivative and evaluate it with four so for that purpose let's go catalog and then because it's already function okay and derivative is at the top we click ok so first we have to write down our equation 2x squared plus 5 and here the cursor is already there 2 and then X and then this one is square Plus 5. now I have everything and then using the arrow go to the right and this is where we evaluate with three, so we have to enter 3 here and then press equal and the answer is 12. we do it with a 4 and this in this in this case we are just going once the cursor appears second time in here after that deleted with delete button this button and then four and then exe execute or equal and you get the answer this is the second example we want to evaluate this f of x is which is sine X at pi over 3. for that we are we have to set our calculator to radian mode settings and then and then angle unit from here we can go and select Radian and when I press OK all clear now we see here or our calculator is in proper mode so go to the this catalog and okay okay now we are in derivative again and then let's enter sine X and here press sign and then X to enter our equation we press sign and then X make sure to close it because there is a closing and then with the Arrow come to the right shift seven shift seven is pi and then this button so we can go fraction sign and then three and then exe and as you can see the answer is one and a half now let's go to sideline in line out go to setting calculator setting input output and then here select the line in line out and then all clear now if I go to catalog. and then okay okay in this case we can set it like this sign and then X close it and then pi over 3 we have to put comma is a second function where you press second function and then closing practice and then pi over 3 Alpha shift pi divided by 3 and then again another comma so we have to put this comma and now the tolerances 1 times 10 to the minus 22 that is the minimum so you can set higher value accurate result so 1 times 10 I'm pressing this it's 1 times 10 to the power minus 22 that is minus 22 and then I'm closing it and then we have to close the actual function here at the end and then press equal and we got 0.5 which is one and a half the same as before now let's see how we can do integral evaluation let's reset our calculator settings reset initialize all yes and then exe all clear when you evaluate an integral we are getting the area under the curve you can solve only definite integral which will give you a number calculation time may vary with the type of the functions that you are evaluating when you're using for example track or sign on cosine make sure to set it to radian otherwise you will get incorrect answer and in line and line out of decimal out you may also use a tolerance value for the tolerance you can use 1 times 10 to the power minus 22 or greater to get more accurate result and let's go math and math out I'm going to shift setting and out and it's math and math out are clear and this is our function we want to find we want to evaluate this x squared from 1 to 2. so this is our function this is our lower bound and this is called the upper bound now let's go to catalog and then okay in the function and go down integration now we see the our function so let's enter x squared we press this X and then for squares we press this button so that is our squared after that we use this button to come down lower bound one and then using this we can go up to set two and then EXE and we got the answer which our second example says the integral of cosine 2X over 2 plus 2 from PI to 2 pi in this case we have to set it to Radian let's go to settings calculator setting unit radian all clear and mode Let's go to line mode this time I'm pressing settings calculator setting and out and then line and out all clear and hover function is will be displayed like this integral of function from PI to 2 pi in this case this is our function so from PI to 2 pi catalog function and integral and then this is our function so let's set it we have open parenthesis cosine of 2 x divided by 2 closing parentheses plus 2 and then shift comma this is our comma type the pi here shift pi five with seven with a shift and then we put shift comma and then the upper bound which is 2.2 shift pi and then close it and press equal you saw that it took some time, and the result is shown like this and now example three we do the same thing except we add this tolerance now let's use the arrow and then go one more shift comma and then 1 times 10 to the power minus 22. 1 and then times 10 is this button. times 10 to the power minus 22 everything is done I've closed it and opened it and then press equal and we get this answer now let's see how we can do summation calculation some of the values for equation something like this x squared from 0 to 4 it means x is 0 to the power 2 because it's Square and then X is this is lower bound that's upper bound and from 0 to 4X is 0 1 2 3 4 and every time we add it because the summation is sum of all these values and in our equation we can do it like this let me press all clear and we have to be possible setting calc input output and make sure math and math out is selected all clear and then with catalog and then okay come down and then select summation you will see the summation sign and then X squared we have it and then with the Arrow come down we have 0 and then with the arrow go up 4 and then equal so that is the sum of those values and if we go in line mode Let's see calc setting input output line and out all clear shift comma. so I'm entering here first our equation X Plus 1 this is X plus one and then we have lower Bound 2 and then upper bound 55 comma 2 and 55. so in this case now shift comma 2 and then shift comma 55 and then we close it because you have opening let's close it and then press equal and that's the answer now let's see how we can work with logarithm let's reset our calculator setting reset initialize all yes and then execute so example one we want to get log of 1000 because the log is second function here we press shift log and then 1000 you don't even need to close it press equal you get the answer example two we want to get log base 2 of 35 and the previous one this one was log base 10 and because this is base 5 so we go with a catalog or we can do it the other way so first let's do it with a catalog whatever is on the screen all clear I'm pressing this and then OK and then come here three times like this log a b and then okay you see the lower bound so the base which is five and then go with the arrow and then 35 and then press equal and you get the answer you can do the same thing with this button here directly five go to the right and 35 and equal for natural logarithm or Ln we have it here with the shift and this is also available in the functions so we have it with a shift let's go uh and press shift Ln and then type 90 without even closing press equal or let's do it with this all clear go in here okay and then with this you come down here you see natural logarithm and you will see it 90 and then equal so we got the answer now let's see how we can do percentage calculation with this calculator so the percentage can be done in three ways which people miss so I'm gonna teach you here the first way 20 of 150 so you want to find out we do 20 times 150 so 20 times 100 and 150 and then press this catalog go down probability and then percent so you will have it and then execute or equal so you get the answer the second way with 15 is what percent of 150 in this case 15 times 100 divided by 150 so all clear 15 times 100 and divide by 150 so that is 10 percent now there is a Third Way 30 is 20 of what value now we want to find the value the actual value in this case all clear 30 times 100 divided by 20. and that is 150 that we got there is a question that it says increase 2500 by 15 percent let's say you want to do that so what we do is this will give us give us 15 and this is the actual value so we want to add this 15 percent to the value all clear 2500 plus 2500 times 15 catalog probability and then percent so that is 15 added and if you want to Discount 3500 by 25 percent so we are getting from 35025 and from 3500 we want to subtract 25 so this whole thing is 25 all clear 3500 minus three thousand five hundred times 25 catalog probability percent equal and that is the discount of 25 percent now let's see how we can do factorial of 5 for example if we say factorial of 5 it means 1 times 2 times 3 times 4 up to five so whatever is this number you go this many times multiply them to do that we just say 5 and then go to catalog and then go to probability and then factorial you will see now factorial sign and I press OK and then equal and that's the answer now let's do some permutation for example NCR when there is no repeat and it's like a lottery Pick 6 out of 49 volts what is the total combination because this has C so 49 C 6 Here Is How We Do It 49 catalog probability and then C come down so 49c sex so this means 49 choose 6 equal that is 13.98 million so that's why people are getting fooled by buying the lottery with your money on this now we have n pick r in this case this repeat is allowed so we'll pick 6 out of 49 balls again let's do it 49 go catalog probability and then this time permutation and then six in this case because repeat is allowed this is huge this is times 10 to the power 10 so beside one you have 10 digits 10 zeros now let's see how we can Generate random three digits to do that we say one thousand and go to catalog come down probability and in this case because we are this goes so long press page down and then random number now you have this on the screen press equal sign so we got 258 if I press it again that's 3.99 so I'm just pressing equal sign equal again everything I press it so it generates new number now so Random integers between 5 to 82 press catalog go probability and then come down random integer and now open it five shift comma 82 close it so this means Generate random integer from 5 to 82 press equal so I did it now I'm pressing again every time I press it will give you always the same range value if you want to get absolute value of something let's say 2 minus 7 you can do absolute value like this all clear catalog numeric calculation and here absolute in this case we can do 2 minus 7 equal so, this was ABS not ABD and if you'll go in line mode press shift setting input output go to line now all clear if I go catalog numeric absolute you will see it like this so 2 minus 7 close it you get the answer now if you want to do the round off let's say 10 you want to round it off pay attention 10 divided by 3 multiply by 3 which should give you the same number but if you don't round it off you will not get it so let's see we will do it like this go to catalog numeric and then round off in this case we put 10 divided by 3 and then times 3 . now we get 99.999 and you will not get 10. and now if you set three decimal places with a fixed go in here settings number format and then go to effects six three all clear now if I press this instead of that we are getting 9.99 three decimal places now let's see how we can do the angle conversion with this calculator first let's reset our calculator so we are in the same setting press settings reset initialize all yes and then exe are all clear but let's say you want to convert 2 pi radians to degree first we have to be in the unit of conversion because we wanted the degree it must be in degree right now it is in degree and if it is not go to settings calculator setting angle unit we are in degree mode so, I'm pressing two shift and then seven this is pi we got 2 pi and to convert it catalog angle coordinate and then what value is your value because this is radian we are selecting radian this is 2 pi radian converted to degree press e equal or execute and that's 360 . that's the answer let's say you want to convert 270 to Radian okay first we have to be in radian because this is in degree so first press the setting calculator setting angle unit Radian all clear all clear and then 270 70 we have to say that this is in degree catalog angle coordinate and then degree so this is 270 degree and to radian if I press equal 3 pi over 2 radian if you need the decimal value just press the format and then decimal you will see it like this. now let's see how we can convert polar and rectangular one to the other so we have polar and rectangular is also called Cartesian first we have to be in degree if you need it you can do also in radian I'm setting it in degree and all clear and this is our first question now in this example we want to convert this polar because we have angle Theta 36.8 and then we have R this R is the radius 6 unit whatever centimeter meter doesn't matter and we want to find X how for this point the whole thing is the whole point is to find the point from this area in X and in y direction so we want to find this X and Y at this point so we have to go in line and line mode we will see a better result but let's convert it so we go to catalog come to coordinate and here because our value we want it and polar rectangular to Polar and polar rectangle you will see here it says RECT so we have polar let's enter six and then Alpha with this button that is our comma 36.8 and then close it and press equal. as you can see we are getting X and Y and the arrow is here we can go and see it but because we are in math mode we cannot see the value properly so if I change it press setting calculator setting input output go to line and line out and then all clear now if I go to this catalog and here and then polar to rectangle now let's intersect until the 6.86 alpha comma 36.8 close it if I press equal now we see X and Y in the same line which is better we are in line mode in this example we have x equal 4 and y equal x equal four Y is minus 5 we want to find the Theta and r and for this point we want to calculate it go press catalog angle and coordinate this time because we want to get polar rectangle rec-to-polar here enter 4 and then Alpha comma and then we are enter minus 5 minus 5 I just enter this minus doesn't matter it will work and then close it equal as you can see the magnitude is 6.4 and the angle is minus 51 because it's below if you get positive answer that will be incorrect now our third example is that we have Theta and we have R and we want to find X and Y but this is now located in that third quadrant one second and third and because of that this 50 degree is only this angle but if you see it and if you see it from here that's 90 that's 90 and that's 50. so, we have to add all of them which is 230 degrees then we can solve it now this way we can solve it properly press catalog and then go down we have polar to rectangle. 6 and 236 Alpha comma 230 closed and now we are getting proper value as you can see X is negative 3.8 and Y is also negative 4.5 which is correct answer without 230 you will get incorrect answer now let's see how we can do trigonometric calculations and cosine tangent Etc let's initialize our calculator so we are in the same setting reset initialize all yes and then exe for trigonometric units let's set it to degree it's already in degree and let's convert cosine let's calculate cosine of 8.3 cosine 8.3 you don't need to close it press equal if you want to do some other calculation close it and then do something else it will be fine sine of 42 the same way we are getting it like that and then sine pi over 2 radian in this case we have to set our radian we can do it two ways let's see all clear sign for pi I'm pressing this shift and then seven that's our pie I can put over I can put over 2 like that where the arrow go to the right here we can close it or we can say this is radian press this yeah catalog angle and here we say radiant does all mean that's radiant and then close it equal and as you can see we got one but if you don't put it let me go and delete it it's in terms of degree it will calculate like that because we get the wrong answer now let's change the degree to radian so you are familiar with that plus the settings calculator setting angle unit and then set it to Radian and exit now if I press equal we get one so this is now in really and we got one the other one was in degree and we said we mentioned what was the unit let's change it back to degree because we will do our calculation and degree all clear and let's go to line n line out mode because this is now math mode let's go to settings and then input output and then line in light out and all clear let's say now we just sine 45 sine 45 you will see it at the top like that now we have this question which sine of theta is 0.8 we have 0.8 and if you want to get the Theta we have to do inverse sine for that we will use the shift inverse and let's press Arc left shift and inverse sine and then we enter 0.8 and then equal that angle this angle is 53. now we have cosine of theta 0.34 and we want to find this Theta so we use inverse cosine let's use Alpha cosine that's inverse and we enter 0.34 equal and that angle should be 70 degrees now for hyperbolic we use this catalog all clear catalog and then with a page go page down hyperbolic and track equal so in this case we can we can use for example sine hyperbolic cosine hyperbolic and tan hyperbolic let's say sine hyperbolic of 5.3 that is selected and then 5.3 equal we got the answer let's see catalog go down here and Versailles hyperbolic and let's say 100 and we got 5.2 this was how to use trigonometric functions with this calculator now let's see how we can use engineering notation with this calculator first let's reset our calculator so we have the same settings initialize yes and then we are in normal mode for engineering notation for example if you enter 5 4 5 6 and then equal and then go to format the format is this button here I'm pressing format and then go engineering notation you will see the number like this on the screen I entered here three don't worry about the three so now this arrow is here it's telling you that if you go left and right you can change it number of the power changes but we can represent it in this format or if we go this way with a negative exponent. if you want to exit just press this button and you go one step back and exit the same way you can do all clear two three four five now four digits and then format engineering notation and now you see it like that. we can change it we have other units that can be displayed with this calculator m is used for Milli and then we have Micro Nano Pico and the units are like this and then we have femto kilo these are the bigger values Mega giga and then Terra PETA EXO and Millie is 1 times 10 to the power -3 which is 1 over 1000 pay attention this three means three zeros and also three zeros on the left of the one it will help you so micro is one over six or one times ten to the power minus six and then micro is nine Pico is one times ten to the power 12th same two is one times ten to the power fifteen so every time it increases by three the number kilo is one times ten to the power three that doesn't have minus which means one thousand kilo and then Mega is to the power six which is one million and then gay guys 1 billion to the power 9 and then Terra to the power 12 and then Peta to the power 15 1p and then xr1 to the power 18 you can be used with this calculator so let's see how can we write 500 kilo now I'm pressing all clear 500 and then catalog and then go engineering engineering sample and then kilo that is 500 500 kilo and then you can add for example 45 kilo plus 88 kilo so all clear 45 catalog engineering and then kilo plus 88 kilo 88 like that equal and that's a value you can do also 75 micros plus 3.5 micro and let's say 75 and then catalog go to engineering micro plus 3.5 micro like that and that's the answer now let's see how we can use the solver feature of this calculator so in our calculation we must set it in decimal mode creation go to settings and input output and let's set it to math and decimal out and then all clear so we use the solver is using Newton's method to approximate the solution for example you can have y is equal x plus 5 and you can solve for x if we have y so this is the case where there is only one unknown we can solve it to do to go to the equation mode press home go to the right and then equation okay and then click and select solver we are now in solver mode now our first example is y is equal x plus 5 we have y equal 20 and we want to solve for x for that we have to store Y into the memory or press this button go to Y and then edit and then type 20 and press equal sign and then all clear now to input the equation Y is equal x plus 5 I'm pressing shift and then y here and then Alpha that's equal alpha x plus five and then press equal sign when I press equal sign it asks. it's asked for solve Target we have to select X and then on the next screen and then it asks you for the initial value press this and enter one for initial value and then when I press equal it comes to execute and then press OK it solves it and that is true if this was 20 this is 5 this must be 15. so, the answer is correct. X is 15 which is true unless r l r means the accuracy 0 means absolute zero means absolute value there is no error but if there is a number that shows the amount of error in your calculation now this is example two now x square minus B over 2 is equal 0 we want to we can solve for x if we know the value of B and I'm entering B for B I'm entering value of 4 so let's put B in the memory press this button go to B and then edit and then four equal so now we have it all clear exit and now let's input our equation all clear now we have x squared let's delete this alpha x squared minus this B Alpha b is this five and then go down. to and this way Alpha equal and then zero now press equal sign and it will ask you for which is the target X and X initial value 1 and then execute and that's the answer that we got for this question now we can use also different method here for example this is the gravitational formula the amount of force between the two planet or two object is this formula gravitational constant times M1 M2 divided by the distance between them or radius of two objects this is Newton's gravitational formula we want to solve for R using G and then all the values will be available so M1 and M2 are two objects the mass of the objects R is the distance between the two objects and G of the gravitational constant for M we have 1 times 10 to the power 12 and M2 1 times 3 to the power 9 and force between them is 0.5 and we want to store it M1 into a M2 into B and F into C so let's do that all clear and then equation let's go for a and edit 1 times 10 to 12 1 that's times 10 times 10 and then 12 equal that's done let's go to b 1 times 10 to the power 9 added 1 times 10 to the power 9 and then that's done for C 0.5 go to C added 0.5 and equal all clear that's done now for our formula we cannot use M1 M2 and an R so here is our formula that is modified we have F we have G from the constants and a b and c Square we are going to write it like this so to input our equation let's press f Alpha 3 that is f Alpha equal and then and then let's go for the catalog and then go down scientific constants and then go to Universal and then find G and selected oh and then we type a so we put this and then we type A Alpha 4 that is a and then B Alpha 5 that is B and then we go down and then Alpha 6 C and then squared. and then exe now we have all the formula all the elements of the formula and then what is the target go down Target is C selected and then initial value click and OK and then execute and as you can see we found 110 this is the amount of this is the distance and we got LR with this much error so let's see what was wrong our formula is correct but let's see our memory let's edited 1 times 10 to the 12th equal and then let's go to B1 times 10 to 9 1 times 10 to 9 and then equal and F is 0 here that's why edit 0.5 and then equal now if I press all clear press equal now let's select C an initial value for C is 1 and then execute now this is the correct answer and the distance between them is 365 353 so that's 365. uh kilometers with this amount of force that we have now let's see how we can do custom function well let's reset our calculators reset initialize all s so I am pressing or clear so press home and then go to calculate General we are already there so we can have f of x and we can have G of fixed custom functions and calculate with any value that we like for example how to type x and x squared Type X we press shift we press shift and then this it will print X to make it Square we just press this button so here are the steps now let's Define f of x is equal x squared plus one to do that we press this function and then go down Define f of f and then we enter x squared plus 1 so alpha x and then squared plus 1 and then press exe that is done it has been saved calculation with F of 5 that is x equals five so press this function and then select the function that you want and here enter 5 if I enter 5 and equal it has been evaluated in my equation if you want to change it to 7 just press this Arrow make it 7 and then equal and this way you can do that now we can do and that f of x into G of x to make f of x equal F of f of x times 2 minus X so let's define our G of x all clear go to function define G of x equal let's put f of x so, at this stage just press function so we can bring the function F and then function X close it multiply by 2x plus X 2 Alpha X Plus alpha x so that's our function 2x plus X and then press equal now our function has been defined so let's perform calculation of G of 8 so press function select G and it asks you for the Value Plus 8 equal now it has been evaluated with f of x inside G of x we turn on and off the data will be lost and if you make any changes by pressing the setting button now let's see how we can use the table feature of this calculator so let's press home and then go table the table press equal and we can create a table based on one or two function that's very important we can have f of x or G of X and let's say we have we want to have f of x equal to x square plus 1 and G of X is this one and when you want to evaluate the X when X is equal 1 x is equal to 3 so we can create table of value for the two functions to press X we press shift and zero and to press x squared press shift 0 and then Square let's define this press this tool and then you will see that it says Define f of x or G of X come down and select because we want f of x selected now you can see the function from previous value is there I'm just pressing 2 x squared plus 1 and then done go here again and then G of x. let's delete it. x squared so alpha x squared minus 5x minus 5 Alpha X plus 3 so we have plus 3 now let's and then press equal so that is done we have we have two functions and to set our table range press the tool and then table range okay and this screen now we want to start with one you can type here one and then equal and then here we want let's say five or three whatever you want equal and then step equal one and then execute and here is our table of value with X is equal one in the function these are the values two three and four and if I go down five and 5 is also here you can store value of the table two variables using this button to do that the value let's say you want to store this value into B bring it bring the cursors this variable go to B and then okay and then store now the value have been stored for f of x if you have only f of x you can have 45 rows but if you have f of x and G of X you can have 30 rules of data displayed we can update the equation as well by pressing this button and here Define f of x and whichever you want you can go and change it let's say you want to change this to 5 and then equal now the value have been recalculated this this was -1 and now it has been changed if you want to insert a row below this very easily click press this tools edit and then insert so one row have been inserted if you want to delete a row bring the cursor to the row let's say this line which is empty, I can just press this delete button and the row is deleted if I go up again I can delete a row to delete all row press the tools and then go down edit and then delete all everything have been deleted here are the data retention method so keep in mind this will affect it if you press home the data will be discarded but if you have the table and f of x it will be kept if you turn on and off the table numbers and the column will be discarded deleted table range will be returned table type will be retained but the function will be deleted the same way for the for the settings only table range and table settings will be kept if you press tool there's a number tables will be discarded table range will be retained and the functions will be retained if you press this tool now let's see how we can generate QR code with this calculator so QR stands for quick response you can scan it using your mobile device for example you have a function and you generate QR code and then use your phone with a camera and then once you see the URL and touch take you to the class pad from Casio and you can set the QR version select the QR version of 3 or 11. so you can generate QR code and once you scan it will take you to classpad.net now let's type this equation and generate QR code for it so let's say cosine 2.5 alpha x i press Alpha with this x button close it plus alpha x and then squared let's say you want to generate a QR code I can create it press equal don't worry about the one press shift and cure it will generate the QR code for you now you need to install the app for this I'm using iPhone so as soon as I bring my camera as you can see the camera has recognized it and I can open it goes to class pad and that's my equation and if it needs graphing or anything there are tons of tools you can create an account login and for example generate a function here Matthew pad you can graph you can do so many things but you need to create an account and login now let's see how we can use a statistical calculation with this calculator first let's reset our calculator so we have the same settings reset initialize all yes and we are on this screen for a statistical calculation you can display one column or you can display a column with frequency or it can display two columns to variable X and Y and frequency and if you have one column you will have a 160 rows of data if you have two columns you will have 80 rows of data and if you have for 35 rules you will have three columns you can have one single or two variables and you can have linear regression for example Y is equal a plus BX quadratic regression logarithmic regression exponential regression and exponential a b regression power regression inverse regression let's go by pressing home and then go to statistics second one press OK and on this screen let's select two variables and right now the frequency make sure the frequency is off if not we press this button frequency and then it's off so all clear I'm exiting back and we're going to enter this data here first let's enter at x 170 and then I'm pressing exe after each value, so we are entering only X now 179 and in EXE and then 773 EXE when you reach that go press Arrow to come to the top because it rotates and go to the right and now we are we are doing 66 and then equal after that 75 then 6 8 equal when we press at this stage, we just press ok. to see in this screen select reg to variable result and here is the result that you are getting all the results are here you can go with the page app page down to see them one by one or if you prefer you can use up and down keys that you can see all the variables that you need for this calculation and this was a simple one don't worry I'm gonna give you more example press home and now in this case we are going for a one variable and here it asks you clear data yes now all the data have been cleared now let's turn on the frequency by pressing the tool key and then frequency and then go up and on press OK and then all clear so I'll clear it here and EXE is at the bottom this is like equal now let's enter the First Column and here one and then egg exe2 3 and I enter them now four five six four equals 5 equal and then 6 equal now seven eight nine and then 10. once everything is done then come down and then because it rotates back to one go to the right and then let's enter the frequency one two one and here 222 and then three four two and then one so I've entered all of the information just press OK you will come to this screen and select one variable result and this is the information that you see again you can go up and down and see it I'm going to bring them one by one do not worry yet it's just an example so you understand it now if you want to you can in here the data are summation and square of summation this is mean this is population standard division population variance population standard division this was population standard division and then number of items n we have minimum of X maximum of X median q1 and here is first quartile q1 is first quartile and then q2s3 quartiles third quartile and if you want to return back just press this button or EC all clear let's press this so we can return back to the data now this is a question that we are using all the information from here to calculate it says determine the normalized variant when X is equal to and P at T at that point so we want to find that one so PRT is in terms of distribution refers to the to this value like that so we are on the table if not we are doing it now press OK and you will see this screen and here we select statistic calc go down and you will see this screen once you see this screen then and here let's you use the first portion normalize variant when X is equal to so enter 2 we are using the data from our calculation then press catalog and then statistics and then normal distribution come down and here we can select t so that data is fed into T and press OK and here is the calculation the calculated result of T and now we want to find the P at T because we get the T so we have to have p on the screen now catalog statistic normal distribution and this time select p and now we want to bring the and the result here we have to press answer means this value is here close it and press equal and that is the value when you when you did X of T that's actually the equation that data minus the mean of the data divided by standard deviation so everything was done here very quickly when we did it that was X at that value now let's go for the statistics of second variable press home statistics this time select second variable and press OK as you see it says clear data select yes and now we have this screen now this time we want to turn off the frequency by pressing the tools frequency and then off and then all clear we are here on this screen now let's enter this information every time I press it I press exe or equal so 1 equal 1.2 1.5 and then go to the next column 1.6 1.92.1 and then 2.4 2.5 2.7 and then three I've entered 10 data here let's press and this key down and then go to the right so we are and Y column now let's enter all this one point 1 1.3 and then go here 1.3 1.4 1.5 and then 2.5 1.7 1.8 and then two one point eight and then two now we have all the data now we need press oh press OK and then select a result and then select Y is equal a plus b x so you will see the data something like this if you just want to read it you can press return or all clear easy to return let's return back to the data and now press OK and then select the regression result and this time select quadratic and here is a quadratic result to return back to the editor let's press this return or AC now we are on this screen so let's do some more calculation okay and this time select statistical calculation so and here we can do statistical calculation of linear regression now you should see this on the screen then press catalog and then summation statistics and then summation when you do that you can see all the summations anything any of these you want you can just click select and press ok it comes here on this screen we can press exe to view it or if you want to go you just press arrow and let's say you want to do it something a more calculation you can do that you can also save them and variable for example e of X into a so first let's bring it by pressing this catalog statistics summation and then X when press equal sign now we can press this variable memory variable and then select which one you want we want a and it says store press OK and it has been stored this sum of squared of values into B so press statistics summation and then select this variable and then exe this is very important to press exe so that the information is here now press this variable go to B and then store and it has been stored now to see it press variable and you will see our values are there now if you want to get the mean here press this Statistics you can see the means and if I press OK this is the mean of value, and you see it on the screen this is example 4 where it says determine the coefficient the coefficient A and B and the correlation coefficient R for this linear regression to return to the editor we press this until you see it so now to get it press ok and statistical calculation. and then select a plus b now we are in linear regression and now we can press catalog statistics and then regression and in here we can see them or view them whichever we want let's say for a press it if I press a that's a value, we can press this button again to come back to the editor. and let's go statistical calculation so we can press this button statistics regression and the same way we can see B and the same way we can see or if you want let's say Plus statistics regression and correlation coefficient so if you want to do something with it now to display two variables plus this tools and here this tool and then two variables the this is the two variable result now press all clear we are in this screen and click here statistics regression and these are all the values for that now if you want to see the quadratic regression select this and then select regression type and from here we can select different regression you will see it here on the screen now let's do some distribution calculation from the statistics determine the estimated value of y hat when X is equal 5.5 and the regression equation resulted from the data so press this so we can come to the data press ok and here statistic calculation and select linear we are in this screen let's put 5.5 catalog statistics and then go to regression and here we can see y hat and press ok or exe you will see the result something like that and to delete all the data that you have now uh to go back to the editor press this until you see the editor now you can delete data here press a tool edit delete all everything have been deleted here are the equations that were used in our calculation all of them are available here now let's see how we can use the distribution feature of this calculator for distribution we can have probability binomial probability will be displayed like that binomial cumulative probability will be displayed like that normal probability this density will be displayed like that not normal cumulative probability so CD and the normal inverse cumulative you will see it as inverse normal poisson probability and then poisson cumulative probability will be displayed on the screen like this now the question says calculate binomial cumulative probability for X data this is a data two three four when n number of Trials are 5 and probability of the success is 0.5 so let's go to distribution press home go to distribution press ok and here binomial cumulative select binomial CD and from here select list and you will see it like this now let's enter our data one two three four five two three four five two and I am pressing two and then equal three four and five once you are done press ok you will see this screen now it asks for n I'm pressing OK and changing it to five and then pressing exe now for row equals 0.5 press ok 0.5 and then okay and then execute and press execute and here is the result all the value have been calculated for us for each value of x now another question to calculate different n and p just press exe and here you can select six okay and then 0.3 for example and here is the result based on the changed value to change the X for example press AC it has been deleted and then we can go here and enter for example say five nine also shown to invert a row for example in here press the tool edit and insert Row from here you can also delete it when I press invert row you can see here the value is 0 so I can and enter something new like nine but if you want to delete it press this edit delete all everything will be deleted now that says calculating normal probability density with all these values population mean as Mu and then population standard deviation a sigma here and so let's go again select and then distribution and select normal PD here now let's enter this is 36 x36 press OK and enter 36 and press OK and then mean S35 and then for this enter 2 okay and you will see execute. and we found that population probability density here now to change the value to another value just press AC we will come back here and enter for example 40 and then 21 or whatever you want. you get the result now let's do some spreadsheet calculation with this calculator. you can have 45 rows of information in spreadsheet and five columns and the rows will be labeled from 1 to 45 and the columns will be from a to E each cell can accept up to 14 bytes and once you press EXE the value will be confirmed now let's see how we can type a b or c on the screen we press Alpha and then a and the same way Alpha would be this these golden colors or letters that you press with Alpha and also if you want X and Y and here the equal sign is in this and this key that is a and if I want to press and that's X and this to the screen and this cell is called A2 because from the top a and then two and this is called C 1 and if you enter 7 plus 3 that's called constant and you can enter also sine 30 for example or e 1 times 2 this A1 times 2 means value of A1 times 2. so now we reset our calculator so we have the same settings go settings reset initialize all and yes now the calculator have been reset now I'm on the home if not just if you're not on the home just press home go to spreadsheet and we have clear spreadsheet now amount of memory is very important because if you fill up the spreadsheet you will run out of memory press tool go to available memory so you can see the available memory which is now fully available 2380 bytes and all clear to exit this is all clear and then I'm gonna use exe or equal so this is equal or EXE now example one we are inputting these data 7 times 5 into a for this and then 7 times 6 and then for A3 here we are going to enter A2 times A2 plus 7 the same way you can go for any of these cells this is B1 and this is for example D4 and for the B1 we want to enter equal a one plus two the difference is that this means grab the data and that's it but this means reference the data which means equal to A1 if you change A1 B1 will change because we have equal sign here and let's move the cursor to A1 to this spot the cursor is there if not we just move it and let's enter a 1 7 times 5 7 times 5 and then press equal and then it goes to A2 7 times 6 and then equal and then go to A3 and then go to E3 now we are on A3 Alpha 4 I typed a plus 7 and then equal now it says move to B1 so go to the right or B1 now I'm in B1 and we are entering equal sign shift this button to type equal and then Alpha 4 a 1 plus 7. so, it says get A1 Plus 7. so that's 35 and it becomes 42. and the cell we can move to any cells like that and you can press ok to change it allows you to change it can go with arrow left and right or you can use the delete this is the delete key or to exit from that cell just press this back or we can use this tool well another option including edit cell will allow you to do that to exit from that just press return now if you want to change for example A2 to 13 go to A2 press OK and then we can delete it and make 13. my character was at the beginning because in the previous operation it was at the beginning and then press OK and the value has changed to change the cell formula for example in this case press OK and you will have option to change it I'm not going to do that. as I mentioned to delete a cell value just go to the cell and press this which I just shown you now example one we want to set B2 equal A2 plus 7 so we are in B2 if not B2 and then shift equal we want a two plus seven a Alpha 4 2 plus 7 plus equal so that is you can see A2 Plus 7. something is called grab from cell so we want to go in B2 should be this value A2 plus 7. now let's see where I'm in A2 B2 I'm in B2 we want to move the B2 to C2 this is let's say this is called grab and grab from cell we grab from B2 this value and move it to C2 so I'm in V2 and then press tool come down it says copy okay now it has been copied it's just waiting for you move to C2 just next cell and press OK it has been pasted now we have to press alt clear or return to exit I'm pressing this so I can exit now if we compare V2 to C2 if we go to B2 it's A2 now if C2 have been changed to B to the reason for that is because this was relative and this is what's relative and we could protect it we could protect it I'm going to show you now let's move A1 to C3 let's move to A1 and then two this time we're moving it so select cut and paste and then C that's 2 3 we are on C3 press ok so this has been moved now let's use absolute reference because let's say let's change B2 to a dollar we can put dollar that will be reference like a regular spreadsheet plus 7 to make it okay so now let's go to B2 and press edit select edit cell and bring the cursor between the A and two and press tool press catalog spreadsheet and we have dollar here now we got the dollar plus seven plus okay so if I go up now you will see it copy B2 to C2 we are in B2 press this. copy and then go to C2 press ok exit now if you block at C2 it has been changed to B to the reason for that is that a have been preserved a has been changed because there was no Dollar in front of it but two have been preserved because we put the dollar in front of it so this was dollar two and now here we have a dollar two so that way it did not change because of the dollar to delete all cells press this button and then go down until you see delete all and everything have been deleted we can put in our cell minimum maximum mean you can calculate minimum maximum or mean let's input these data 7 times 5 and pressing equal seven times six and then Alpha A2 plus 7 and I'm going to B1 Alpha equal Alpha 4 1 plus 7 and enter so we have the data now let's go to A4 now here there is nothing and we want to type this equals sum A1 283 so press Alpha equals so we have equal sign and then go to this catalog spreadsheet and then down until you see sum now we got sum and then because we want A1 Alpha a and then 1 now continuous spreadsheet and then we bring colon and then Alpha a and then three close it and EXE now as you can see we got some of the all cells which is 126. the same way you can do minimum maximum mean all other values we can do batch input of a same formula into series of cells here go to B1 for example and cell formula we are selecting a fill formula to fill all the column for us so go to tools and then fill formula and let's fill it like this 2 a 1 minus 3 we want to grab a 1 multiply it by 2 and subtract 3 so from press OK and here 2 Alpha a 1 minus 3 and then press OK and B1 to B3 let's change it so B1 is okay I'm coming here no B1 delete so B1 and then delete three and press OK and after that. after that just confirm and as you can see we have filled up this information from B1 to B3 and the formula have been already entered for us so we can check the values so input batch same constant before it was same formula now we want to bring same constant regardless because if you see here this was formula we copied everything with a formula but now we are going with a constant go to C1 we are now in C1 and then press tool this time selects value when you select fill value now press enter B1 Alpha B 1 times 3 and then press equal and in this case now C1 is okay I'm Gonna Change it to C3 and okay and confirm now we get just a value new formula in C but if I go here there is a formula with equal sign with numbers but this is just value the same way you can check the values we can have some settings for the app for example Auto calculate if I press this tool, you see here autocalc autocalc and you can set on off right now it's on because any value that you enter it will be reflected but if you set it to off then you it cannot work and if I go back you have to come back to this recalculate to do that and also, we can have tools value formula show cell for example and then so in the cell if you want formula or view value if I go to value and exit and exit now this doesn't show here even though we have formula but it shows the number now let's change it back show cell let's change it to formula and exit now it shows the formula and the same way we have recalculate which I've just shown you now let's see how we can solve polynomials we can solve second degree which is X to the power 2 third degree x to the power 3 and 4th degree x to the power 4 degree polynomials with this calculator can get real or complex Solutions we can get with X minimum and Y minimum as well first let's reset the calculator so we are in the same settings press on the settings go to reset and then initialize all and yes press or EXE to go to the equations we go to equation up press home and then go to the right until you see equation press you will see this screen and we select polynomial after that we want to work with a second degree x square plus DX plus c press it and you will see the screen so we are going to use Muhammad's formula also called quadratic this is the formula from Muhammad Ibn Musa and Muhammad was a Persian mathematician from Khorasan. Khorasan is current Tajikistan, East of Iran, Afghanistan Uzbekistan Turkmenistan. now let's see how we can solve x square minus 5x plus 6 by finding the roots from A6 so that's first coefficient that's the second coefficient the first one is square the second so that's to the power 2 that's to the power 1 that is to the power zero so first we will enter the coefficient of first term and here one and then I can press OK it moves to the next one or I can press e x e or equal and then here that's -5 I can enter just this minus it will work fine in this calculator minus 5 and then okay and then enter six and then okay once you're done you can press ok to see the answer so we can press exe to get X1 and exe again to get x2 X1 is 3 and I'm pressing exe again that's two now you see the two arrows it tells you that you can go back to cx1 or come down to see X2 and if I press equal sign you see minimum of minimum of the equation if x equal 5 over 2 and if you don't like this press this format button I'm pressing it select decimal to see it in this format now go to the Next One X minimum X minimum this is minimum of x and Y minimum and this is the Y minimum minus 1 over 4 if I change the format minus 0.25 let's go to the equation and as you can see it is at y minus 2.5 and here minus 0.25 you can see it and the first one was three and the second one was two. and now let's try the same thing using line so let's go to settings calculator settings and then input output and then line in line out let's go down and select it and press all clear and now the equation is already there and just pressing EXE we got three two and then the value shows like this because there is no uh fraction and the answer will be displayed this way and now to continue with different values I've already pressed EXE so I can press 2 3 or 1 and then the answer because now we are in line mode we see minus 1 over 2 and you can press format to get decimal let's go to the next one that's minus one X minimum is minus 0.75 and Y minimum is minus 0.125 now this is an example that we have x squared minus X plus one this has imaginary solution so let's see how it works so first let's enter the first one one and here minus one and the last one is also one when I press equal here we can see that it says 1 over 2 0.866 something with the I here because we are in the line mode and let's go to the next solution is also the first one is positive the second one is negative now sometimes you need the exact value so press settings go to input output and then select math and math out at the top and then all clear and if I press equal setting that if I press equal sign you will see the proper full so this is the exact value 1 plus square root of 3i which has imaginary value over 2 and if I press equal again this is minus so just the sign changes according to Muhammad’s formula the X minimum so the Y minimum at X and the Y minimum at y the value is here and if I press it will come back now this is example 3 of the quadratic I just press equal sign to see it now for this let's click on the graph from desmos.com and our equation is in here and as you can see at five it's just touching the X at 5 but it is not Crossing let's enter the value that's 1 and this is -10 equal and the last term is 25 if I press equal now that's the answer X is 5. and then minimum of y x is equal 5. and Y is equal 0. so, X is equal 5 and and Y is zero it because it doesn't go below this line now this is example 4 of quadratic in this case we have 5x squared plus 2X the last term is missing so we have to add our on now I'm pressing equal sign come here so the first part A is 5. and this part that's the second term B 2 and the last thing we have to enter 0. and then equal that's the answer let's have a look at the graph so the graph looks like this X1 is minus 0.4 and X2 is 0 in here 0.2 add this and then Y is again so X and Y both of these are at this spot minus 0.2 and 0.2 that's for minus X and this is for minus y let's go for the example 5 for the third let's go to equation and then select polynomial and this time we are selecting ax to the power 3 b x to the BX squared plus c x plus d and press ok now this is example that we have minus x to the power 3 plus 4X so x to the power 2 is missing and the last term is missing let's have a look at the graph first our graph looks like this and if I close it so you can see it better so the solution is like this X is 2 0 and -2 and that's let's see so the first term so we will write it like this the first term is minus one minus one and then equal the second term for the square is zero the third term is four and then the last term is zero and then press equal as you can see we got X x 1 equal 2 x 2 is -2 and X3 is zero of local local maximum is this number so I can convert it to decimal that's the local maximum and for y That's the value cubed plus 3x minus 5 and as you can see the x squared term is missing so we have to rewrite it this has imaginary roots so the coefficient for the first term is -1 and second term which is missing 0 this 3x is here and then minus five let's enter it here minus one minus one and then 0 okay and then three okay and then minus five minus five I enter minus five and if I press equal that's the answer minus 2.5 as you can see the arrow shows either I can press equal or go down and this is the other solution I'm in line mode settings okay okay and here I'm in line mode if you're not just do it so that's the solution and the third solution is the same thing pay attention second and third only have the sign and the local maximum of this equation local maximum of X is 1 and maximum of Y is minus 3. now let's open the plot here. and this is the zero line. and if I go here X1 is minus 2.27 and if I bring my mouse here 2.279 that is this solution and for the second one 1.13 and that's imaginary I put the value here positive and negative you see the dot here so that other two solutions are imaginary they are not on x-axis just below and Above This y 0 line now let's see how we can do system of equation with this calculator first let's reset it go to settings reset initialize all yes and it has been reset fully we can solve 2 to 4 unknown equations like this for example we have here two unknowns and we are solving it solving them so we can solve for x y and z in equation we when we have three equations so you have you have to have three equations to solve for three unknowns two equations press home and then go to the right again equation and in this case select simultaneous equation the first one enter and then let's select two unknown and here is our equation we have to enter it as you can see here we have 2X 4y is equal 10 and then x minus x y equal 3 we want to find which value of X and Y makes this equation true so we will enter 2 4 and 10. and we have spot here that is for the first equation we can enter X and Y is there we just enter the value that I have highlighted here so first two and then equal I'm pressing this axe or equal and then four and then okay it goes to the last one 10 and then okay it moves to the next one in this case 1 and then OK and then minus six don't worry any miners will work and then here minus three okay. so if I press equal you will get the answer like X that was just an example so X is 3 Y is 1. and we got the answer. so this this when you when you see X the arrow is down if I press it again Y is shown and it shows up you can go back and see it if you want to change the values just press equal sign it will come back and it will allow you it will allow you to change the values let's say three four one five two eight this is just random now it might not solve but yeah solved it now let's go for three equations select home equation simultaneous equation and then three now we have three rows now pay attention that because we have X Y and Z and then we have more on the right side which I'm going to enter now for the first one let's enter this is this is our equation we have X Y and Z this time but some of them are missing so I'm going to fix it and show you so for the first one let's enter one okay and then 5 okay and then for that one now pay attention if I press OK it goes to the right and after equal we are now on the rise of equation we have space now to enter 15. and then okay it return back to the first one and now we enter 3 1 6 20. three okay one okay six and then 20. I entered it moves back now and here we have to enter our zero minus two eight zero eight minus two okay eight sorry eight zero and then move to the right of equation and then eight equal and then if I press equal you see X press it again y now the arrow shows that we have more and then Z is one and this way you can go up and down and solve for simultaneous equation or system of equations now let's press home General calculation. now let's see how we can solve inequality with this calculator we can sort second third and fourth degree inequalities with this so press home come down on the next screen inequality and press equal and then you will see it so let's just select quadratic one to the a to a x squared plus BX plus c equal and our first example is this x square plus two x minus 3 we want to see at what value it is less than if it is less than zero if it is true or not so or at what value let's select the second one and press ok and it will ask you let's enter the value 1 and then okay two and then minus three and okay after that if I press OK it will give you the answer it says that X is smaller than b and bigger than a which means X is smaller than 1 when X is smaller than 1 or greater than minus 3 this equation is true less and let's open the graph here to see it as you can see this is from desmos.com that's my equation as you can see here it says when X is less than 1 and greater than minus 3 then that is where the equation is below zero every Y is less than zero you see this point is 1 and that is minus 3 and this shaded area is below this line and anything above is positive so these are less than zero but we can change the value like this let's go to calculate setting calculator setting an input and output and then select line n line out and then all clear now you will see it it's shown like this if you prefer if you prefer like this now for this we have to select our equation again go to home inequality and quadratic and from here we can select when the equation or Y is greater than zero greater or equal now we enter our value to minus 3 and then 1 okay and press equal and the answer is presented like that in terms of decimal I still I don't like it so let's press settings and out and let's select math and math out and then all clear so the value will be shown like this it's bigger let's now let's have a look at the graph of this this is on dismiss.com and as you can see it says X is greater than one it's positive because when X is less than one it's below it and when X is smaller or equal than half so when it's smaller or equal than half then it is positive press home and then go to the inequality and select cubic to the power 3 and our question is like this we have it when it is greater than zero so let's select greater than zero greater or equal than zero and I got it here so let's enter -2 minus 2 okay 4 okay and then 1 and then minus 2 again. now this is our value if I press equal we see here the solution X is smaller or equal than a and X is smaller than C and greater than b and a b and c have been defined in here so we have to see it now I'm pressing format again and then go to decimal and you will see a b and c clearly here even though they are a little small but better to understand let's have a look at the graph this is a graph it says from the right X is bit less than C and greater than B and C are here so less than 2 and greater than 2.7 so less than 2 this is 2 and then 0.7 so in this area in this area of X in between these two value of x y is positive and here when X is smaller than a it's positive and a is minus 0.7 so any in this area minus 0.7 Beyond this point Y is positive because this equation goes forever in the positive direction Beyond this point it never comes on this side now let's see how we can use complex number calculation with this calculator let's reset the calculator so we are in the same settings reset initialize yes and okay now for the complex let's press home go down and select complex press ok. we can have return rectangular complex value a plus bi or we can have polar in this calculator and then we can enter it or show it at the top of the calculator you see here I that I or angle will be the spread if that is I it shows the complex result will be in rectangular and if you see the angle it will be polar which I'm going to show you the default is I so in a in rectangular we have X and Y we have a we have X and Y we have a point if you draw a line there is an angle Theta and if it is polar then we have R the magnitude and then Theta so we can find the appropriate rectangular value from Polar so the complex notation is based on agreement and some school or books you will see for example 8 plus 5i the I is at the end of the second portion or second term or you see you will see 8 plus j five and the letter G refers to imaginary that's before the second term this calculator uses this method we will type I at the end so let's see how we can input 8 plus 5i we press 8 plus 5 because we want I press shift and nine this 9 has I here I'm pressing it and you will see I now if I press exe you will see the same thing the result is the split based on whatever you have here on the setting and we can also input to angle 45 and polar format so let's press alt clear I'm pressing this AC all clear 2 and then catalog complex and an angle and 45. now if I press equal sign it will be converted to rectangular because we have rectangular and this is the exact value and if you want to see the decimal portion you can press this format and then select decimal and you will see you will see it in terms of decimal real and imaginary like that now let's say we want to change the display format from to our Theta let's press settings calculator settings and then complex go down until you see complex result and then select R and Theta press OK and then all clear now this has changed to angle and if I press equal anytime it will be like this so now this shows that we are in polar and we can do calculation something like this let's open a parenthesis 2 plus 6 and then Alpha I close it divided by 3 Alpha I now if I press equal sign you will see that we see the angle and pay attention the angle is set to degree and the result if you want to convert it to Polar this angle is now zero and if I if I set it to radian it will be different now let's do this calculation 1 plus I to the power 4 all clear open a parenthesis 1 plus Alpha I close it and then press this button and type 4 and then with the arrow go to the right so we are out of this power and then. Plus don't forget this plus one open parenthesis 1 minus Alpha I close it and then for a square we have a button here I'm just pressing it press equal and because our setting is in terms of polar we will get the magnitude and the polar now this number again we want to format a transform at and decimal you will see the angle and the format like this because we are in MathI/MathO mode we need to press the format if I now let's go to settings calculator input output and math and math out all clear now if we enter something that has changed now it's removed now let's do this again open a parenthesis 1 plus Alpha I Alpha I close it and then press this button now four and then close that and Plus 1 minus Alpha I close it and then squared now if I press EXE the answer will be directly shown and real magnitude and angle format again this depends on D if I go to settings angle unit and select Radian if I press equal now before this was the first result this is the second result calculation as you can see the magnitude is the same but the angle has changed to 2.67 Radian let's go and change it to degree all clear and then equal now we see proper value and let's change it to decimal math and decimal out. and we can enter something like this square root of 2 and with the arrow go to the right Plus square root of 2 and then go to the out to the outside have a space here and then Alpha I now press equal you will see it real because this this exact value so 45 degrees 245. to show the decimal Value Plus again format and decimal because this was already decimal you saw the decimal and if you want to see it rectangular press again settings complex result rectangular all clear press equal you will see it like this now let's see how we can get conjugate of eight plus five I this is just a number that I choose for this we are in degree so here press all clear press catalog and then complex come down until you see conjugate press ok now we see conjugate and then we and then enter eight plus five I eight plus five Alpha I close it and press equal that is a conjugate so the only thing that changed was the sign it was plus it became minus now let's see the argument the argument of this real and imaginary evaluates an angle so all clear catalog complex argument eight plus five Alpha I close it and equal and that's the angle that we got in terms of degree and if you want to get real part of this if you want to get real part of this all clear press this catalog complex go until you see real part and enter your equation our term 8 plus 5 Alpha I close it will give you the real so it discards the imaginary and if you want imaginary the same way all clear catalog complex imaginary part and then enter the value 8 plus 5 Alpha I and this press it will give you the imaginary as a number so if you want the real part of for example nine angle 36 you do the same way you can just enter it the same way let's say real part complex real part of nine and then we want to enter angle catalog complex angle and that is 36 close it if I press it automatically it will convert it to you it will convert it and will give you the real the same way if I go to complex and then imaginary 936 9 and then angle catalog complex angle 36 if I press it will give you the imaginary value now how we can convert 9 angle 36 to rectangular press this button here. 9 catalog complex angle 36. if you are already in rectangular mode if I press it will be it will be converted if it is not you can press this format here and then from here you can see polar coordinate and it will give you back to Polar now because we are in polar if I press format you see rectangular coordinate it will give you in that format and the same way 7 plus 8i let me press alt clear 7 plus 8 Alpha I and you want to convert it to that format if I press equal it is like that but press format and then pull our coordinate it will give you 11 and then 45 that that's the magnitude that is a 45. to do binary decimal hexadecimal and octal conversion and calculation first let's reset our calculator so we have the same settings calculator reset initialize yes and all okay or EXE. now we can convert binary decimal hexadecimal and octal one to the other and you cannot convert 1.5 to Binary so decimal value we can do and or X or an X nor not an negate of some values we can do adding subtracting multiplying of X and more range of data that this calculator can do is 32 bits which means X is positive 32 zeros on this side and 0 and 31 ones on this side and for the negative the same way for the binary it is between this value that you see and for octal is it's also 32 bit so X is greater than 1 and there's ten seventh here and for octal negative this is the value and the range of that is 32-bit for decimal you can get from minus this number to positive of this number and for hexadecimal one two three four five six seven eight zeros up to seven numbers on this side which is 7 and then f and the range is also for the negative eight and then seven zeros and positive is all eight f if you get math error it means it means the value is outside the range now how to bring letters we can press Alpha and 4 for a so here this is a b c d e f and all of these can be pressed with uh shift if I press shift and five it will be B shift and fix it will be C let's press home and then base n Go to the right come down until you see base n Press OK and by default automatically it goes to decimal and it says press format to change the format this is a former button and this is equal sign so every time I press I say equal or execute this is the button and the format is here let's enter let's go to Binary mode press this format and every time I press it changes so now we are in binary mode and let's enter 1 1 0 0 1 1 0 0 and then press equal so this is our binary value the value was there because we can have 32 bits the value is on the least significant digit here on the right side now let's add this because we are in binary mode pay attention to this 1 1 this 2 means base 2 or binary plus one that's also two so this is not eleven this is 11 binary let's do 1 1 plus 1 and then equal as you can see it has been added and the result is here because this is 3 and this is one the result is 4 here and if I press all clear 5 plus 3 you get error because the syntax error when you are in binary mode you are not allowed to enter 5 and 3 so we can press ok to go back now we can delete it or press all clear and let's press format to go to hexadecimal now we are in hexadecimal mode let's enter one f plus C B so this 16 means hexadecimal hex means sex decimal mean 10 so hexadecimal 10 6 so 1f I'm pressing 1 and then shift 3 for f plus, CB shift six and then shift five and if I press exe my value is displayed because we are in hexadecimal mode now to change to decimal just press this button and then until you see decimal and the value have been converted to 234 so this is hexadecimal and we receive that now let's enter these values we are in decimal mode we want to enter 5 Base 8 base 8 or octal and that is base 16 or hex this is base 10 or decimal and this is base 2 or binary now to enter this we do I'm pressing all clear even though I'm in decimal mode don't worry press this catalog and then base prefix come down and then select octal you see OCT after that we can enter 5 plus 5 plus and okay. we have it octal five and then for this value let's select base prefix go there and select hexadecimal and then f plus I'm pressing shift effects that's F and then Plus now for this we go to base prefix and then decimal and then 1 9 plus now this is the last one base prefix go to base prefix and then select binary and then one zero and then because this means now five hex and then five octal F hex and then 19 decimal and one zero binary and press equal the answer is whatever you have because this is decimal we are getting it in decimal if I press format we are getting hexadecimal that's the value that's 29 and binary is one zero one one 1011 and if I press it again octal is 51 the result of this calculation now in binary mode we are in binary let me press it so we are in binary all clear and let's convert this to decimal 10101 to convert it press exe so let's convert to 3 1 decimal to Binary so we are in decimal all clear 2 3 1 and then we have to press exe until the number that you entered is not here you cannot convert it so make sure you press the button so it is here and then press format hexadecimal and binary that's the binary value now let's do some logic calculation when you see and git and Means A and B must be true to get the Q equal true now for this will be a bit wise calculation meaning that the first bit will be compared with first bet so A and B these two are one the output is one and then 0 and 1 both of these are not one output will be zero and then one and zero will be zero so we will get 0 0 1 the answer now to do that let's press alt clear one zero one and then press the catalog logic operation and then select and we have now AND and now enter 0 1 1 0 1 1 and then press equal and the answer is 0 0 1 or 1 as I explained it now we are in HEX mode now we want to let's go to hex I'm pressing format hex all clear 2A 2 Alpha a let's press catalog logic operation and BC Alpha B and then Alpha C and then press equal it has been converted to decimal if you want to get it in terms of any other value binary hex so that's the value now let's see or Means A or B should be 1 so we can get one and we can do it like this all clear 110 and then catalog logic operation come to or and then the next value 1 1 0 press equal and the answer is 110 for logic operation we must be in binary mode otherwise you will not get a proper answer and 0 1 and then catalog logic operation X nor and then 0 1 0 0 1 0 and then press equal and that's the answer if it's X naught look now let's see what else we have we have hex value and if you need a b c and d and if you cannot find them here you can bring A or B from there and then base prefix we just saw it now let's start working with Matrix this calculator can perform a matrix of size 4x4 and when you start working with Matrix we have to save it in a calculator before doing operation on them for example we can save this Matrix in a matrix called MatA let's go to the Matrix mode press home you will see this screen scroll down and use until you see Matrix press ok now we are in Matrix mode and press tool you see it says none of these are now defined and we can Define four Matrix, MatA b c and d they can be saved and then the operation can be performed after the Matrix is saved now we have to select MatA and then the row and column are like this so this is column and these are row we counted from the left down and to select that we can press OK and row is three and then now I'm in column three and then okay now we have the space empty for us now for our Matrix press 7 exe this is exe or equal and then four five so I'm entering it 7 exe press this okay four and then five and now I'm gonna do two three two three and then zero and then eight one nine eight one nine so I'm entering all these The Matrix have been saved now press ok here to exit or we can press return or we can press all clear AC The Matrix have been saved now let's save this to into Matrix B do that we have to press this tool as you can see now it shows three by three let's select Matrix B and then the same way row 3 and then column 3 and then confirm we have the spot here. AC or clear to exit from the operation now let's save this into Matrix B minus 1 5 26 and I'm going down 349 3 1 4 9 and then 0 4 8. 04 and 8 I've entered them and press exe to exit now press tool and as you can see this is 3x3 and then there is none now to view the Matrix we can press so I'm pressing this button to exit press this catalog and then select Matrix and then you can see if you want to see MatA just come to MatA and you have it here if I press equal it will be displayed but let's go back and here we can multiply it by 2 as well just multiply by 2 and this is the result the actual Matrix has not changed I can press back delete it and you see that that's the actual Matrix now to edit a matrix let me press AC all clear press tools and MatA 3X3 and here you can see edit if I press edit we can go and change the value for example make four to five make it five and then press exe now it has been saved and all clear now let's add MatA to Matrix B for that let's press bring MatA catalog MatA and then plus catalog Matrix MatrixB if I press equal that is the Matrix answer now it's in Matrix answer and then all clear to C Matrix answer we press this catalog Matrix and then go down Matrix answer is there okay you can bring it on the screen or you can see it you can save this to Matrix into Matrix D for example in this case just select this and then store to Matrix D okay and this is now in Matrix D all clear if I check this you see Matrix V has some value keep in mind that when you are adding Matrix or subtracting the dimension of the Matrix must match for example this is 3x3 if one is two by three or three by four it do not work all clear now let's do MatA square of MatA so to do that press catalog Matrix and then a after that we can just press the Square to Square it very easily and Matrix have been squared but I can go back and delete it and we can do it and second method is MatA you bring MatA and after that press catalog Matrix and then go ->Matrix-Calculation and here Matrix squared it brings it it's a little longer but because other options are available there we can do it now we can do Matrix cubed the same way if I go back delete catalog Matrix, Matrix-calculation cubed and this way we can cube a matrix as well and for each value you can move the cursor back and forth and see the actual value here if it's fraction you can see it as well which I'm going to show you now let's see how we can find inverse of a matrix for inverse of a matrix you have to do all this calculation and including the determinant of the Matrix and before we can find the inverse of the Matrix. bring the Matrix-> catalog Matrix MatrixA now we can do here by shift and this button it brings the inverse very easily we can just press equal and that is inverse of a matrix. for each value we can see it and here if you want the decimal value just press format this button here format and select decimal it will be converted to decimal but we can do it other way by other ways that bring the Matrix MatrixA and then go to catalog this operation here catalog Matrix ->Matrix-Calculation and inverse of the Matrix this was long but doable if you need it keep in mind that if the determinant of a matrix is zero you cannot find the inverse of it and let's see how we can find the determinant of a matrix catalog Matrix ->Matrix-Calculation and health determinant and it says determinant and bring the Matrix catalog Matrix and MatA and press equal you get the answer and remember the determinant of a matrix is a number now let's see how we can do transposition or transposing a matrix press catalog Matrix ->Matrix-Calculations and then go down until you see transposition and then bring your Matrix here catalog Matrix under MatA now MatA have been transposed all the row have been switched to column to row now you can generate identity Matrix very easily if you need it because in many applications you need to generate multiply or do some calculation where the identity Matrix catalog and then Matrix ->Matrix-Calculation go down and you will see identity and it will ask you for that Dimension because identity Matrix is squared so it you just need one value either two by two three by three or four by four let's put 4 and equal and you see we have generated identity Matrix of four by four diagonal is all one now if you want to get absolute value of a matrix all clear to get absolute value of a matrix press catalog go to numeric calc this time not the Matrix numerical calc and then absolute value and then catalog Matrix and let's say Matrix B and press equal and that is the absolute value if there was any negative it has been converted to positive now Matrix answer we can use MatA plus Matrix answer this is Matrix answer so bring MatA plus catalog Matrix and then go down until you see Matrix answer this is how you do some calculation with Matrix answer now you see how we can do Vector calculation with this calculator first we have to reset it if your calculator has different settings so settings reset initialize and yes and then execute so let's go to the vector app press home down and then one more down Vector is on the right of Matrix now we are in Vector we can do two Dimension Vector calculation or three and two dimensional we have X and Y and here we have x y and z and to do the calculation we can store up to four Matrix and VctA is sorry for vector and VctA b c and d and called VCT vector A, B, C and D. let's store one and two one comma 2 and VctA press the tool you see there is nothing a selected and then from here select Dimension press it and then we can have two because our is two dimensional and then confirm now we have the space here we can enter one and then OK it goes down to and okay if I press alt clear we exited we can exit with OK with this back or all clear AC now let's store three and four and VctB tools now we see we have two dimension in A and B is empty none now select the dimension and then confirm now we have the spot three okay and then four okay after pressing OK you can press all clear now let's add VctA to VctB catalog vector and VctA plus catalog vector and then bring VctB and then press equal dot the addition of VctA to VctB now Vector answer also is available I press all clear catalog vector and then scroll down after d there is Vector answer if I press it my last Vector is called as Vector answer it is stored and will be available at any step of operation you can press alt clear to exit from that screen now to edit VctA press this tool VctA and select edit and here you can just change it for example 1 to 9 and press it and exit now let's do a DOT product of MatA and B to do dot product let's bring the Matrix catalog vector VctA and after that catalog vector and then this time Vector calculation and you see dot product is selected we see the dot now let's blank dot our VctB vector VctB and press equal and that's the dot product it's always a number now let's see how we can do cross product all clear cross product of if you want to find cross product the dimension must be matching two by two or three by three so cross catalog vector VctA and then after that press catalog Vector catalog calc Vector calculation and this time select cross product and then catalog vector and VctB we got the answer 0 0 3. now when you do the cross product the length of the Matrix is increased by one so we have 0 0 3. now let's see if we could do it other way I'm just deleting it and just putting this multiplication sign and you see it worked so cross product you just multiply them and it will work now the angle between the two vectors I'm pressing all clear let's say you have VctA and VctB you want to find the angle between them that's very easy press catalog vector and then Vector calculation select angle and then select VctA catalog vector and VctA after that we want to bring the comma and VctB so press Alpha and then this closing will bring the comma Now bring the VctB catalog vector and then VctB we can close it or without closing just press equal and that is the angle between the two vectors this angle depends on the setting if it is radiant you will get radiant because this is degree we are getting 40.6 degree now let's do how we can normalize VctB all clear vector and then Vector calculation. unit vectors and then bring VctB for example catalog vector and then VctB press equal and that is the normalized or unit Vector that we have if you want to get absolute value of the vector which is the magnitude of the vector so here all clear press catalog vector press catalog numeric calc and then select absolute value after that bring the Matrix catalog vector and then VctA equal and that is the magnitude or absolute value of the vector so this was majority of operation of Vector in this calculator now let's see how we can do ratio calculation with this calculator this ratio operation will allow you to determine X and the format of a with respect to b or a to b equals x to D in this case we want to find D or in the other format will be a to B is equal C with respect to X so X is moved between these two sides so we can find the ratio I got this good example let's say that TV or computer monitors are now 16 to 9 except the very wide screen size but TVs are 16 to 9 now and 16 is the width and 9 is the height this is just a ratio it can be inch Meter whatever value you want foot it can be the same ratio and older TV or monitors were four by three so four by three so that is I want you to understand you want to find a photo that fits on 16 to 9 TV if the width you have only the width if the width is 3200 what should be the height because I have seen people are putting photos on screen and it will it's not fitting so if you understand this you can fit the photo properly so in this case 16 to 9 we have 3200 and we want to find X here now press home and then ratio is just on the right side of a vector and here we see this screen and then we select C because the width is there we just need the height so let's go down in this case and we got this screen and TV 16 to 9. so first now let's enter the value first 16 and then OK or EXE after that nine and then okay and then we have to enter 3200 and then okay and after that we press e OK or exe again I'm pressing it and it says X is one thousand eight hundred so what it means is the image should be 3200 by 8 1800 pixels so it can fit perfectly if you want to change the format to decimal just press format if the if the number you're getting is fraction or something format and the decimal it will change it for you if you want to make another calculation just press it and put the ratio with different numbers and it will be calculated for you to go back at any moment change it the type you can come here now at any moment if you want to save this into memory let's say to memory B just press this button and then go to B press OK and it says store this 1800 is stored in X all clear if I press this button it shows that all memories are empty except B which we have stored now let's see how we can use the math box app of the calculator so the math box app has a dice Rule and coin toss two options are available 100 rules of two dice let's go to home and then come down and see math box press ok and here we see rule dice roll and coin roll and let's say dice roll okay and you will see this screen and let's set the dice the number of dice two and the number of attempts how many times 100 you can enter 1 to 250 I'm entering 100 okay and then same result we did not see it here and now with the same result I'm gonna talk about the same result later go down and you see now it's rolling hundred of them and now in this screen you result type list or relative frequency let's select a list and here is our value so this is one die and dice another one so two dice the first one is a the second one is six and this is now some three plus six is nine as you can see here and then this is different difference between them six and three that's three five and minus three is two so that's why this this is a difference between them and we see one two three four we I can press this page to go to from five to eight and then 9 to 12. and up to 100 rows have been calculated so you can see and play with them if you want to change the relative frequency go back and a relative frequency, we can select sum or difference select sum and now some frequency and then relative frequency is displayed so number of attempts shows 100 and this value always shown here if you go up left and right or any other spot it will show. keep in mind that when you say same result is useful if you have a class and there are 20 or 30 calculator if you want everyone to get the same answer the same result use the same and your calculator in in the results so all the calculator will get the same result five rule of one dice so let's select tool go back and go back and this screen press it so we select one and then number of attempts let's type five and then confirm and same result is off because we said this is used for class or two or three calculators should be the same to get the same answer you set it otherwise just come here and execute and from the left the select list and this is the answer for one die up to five times it has been ruled 20 toes of three coins so go back go back and go back and now you see here coin selected and then select three we want three coin and number of attempts 20. oh, confirm and then the theme is off because we are not in the class and then go down and execute. now the result is the same list now this one shows head and tail with black and circle felt and not felt so you can see them all here up to up to 20 I just scrolled you can go up very quickly now let's see how we can use constants that are available within this calculator this calculator has 47 built-in scientific constants based on codata 2018 to access them we press home and then go to calculate with OK or equal then to access them we press catalog and then go down in the next page scientific constant and then Universal for example C naught is speed of light if I press equal that's the speed of light you can bring it on the screen or go with the arrow and then let's say you want to multiply it by two or something so do your calculation and then let's go to Scientific constant and electromagnetics go down and then here electromagnetics these are all the values that are needed for that and then we have Atomic and nuclear uh all clear scientific constant you see Atomic and nuclear all these mass of electron Neutron and a lot of other constants that are needed then physical chemistry all clear we have physical chemistry values here. that are all available here all clear and then adapted values. I'm going down adapted values so atmospheric pressure and then other if I press this go down scientific constant and then down you see other and that is absolute temperature that is um 273.15 they can be used in use calculation let's see how we can do unit conversion with this calculator to first let's change the settings go to settings calculator settings input output make sure you are in math and decimal if not selected and press all clear we can convert one to the other one for special publication 8 11 from 2008. for example if you want to convert five centimeter to inch type five and then this catalog and then unit conversion you don't see United conversion go to the next page unit conversion and length because that is length and then select centimeter to inch now we see centimeter five five is already there five centimeter two inch press equal that's the answer now if you want to get it in terms of decimal I forgot mention go decimal all clear now let's type five catalog go down unit conversion length and then centimeter if I press equal that is converted to me and also you can do directly converted during calculation for example you can have you have kilometer per hour but you want to use it as meter per second in your calculation for example how far a car moves in five seconds if speed is uh 100 kilometer per hour so the speed is speed meter per second times speed per second because if you cancel meter e and also you can do directly converted during calculation for example you can have you have kilometer per hour but you want to use it as meter per second in your calculation for example how far a car moves in five seconds if speed is uh 100 kilometer per hour so the speed is speed meter per second times speed per second because if you cancel meter you get the speed so speed is 100 kilometer per hour and time is 5 Seconds in this case so type all clear 100 catalog go down unit conversion and then select the velocity and in this case kilometer per hour to meter per second is the first one selected automatically everything is ready just press just press equal sign and that's the meter per second 27.7 meter per second now this is another example 120 degrees Fahrenheit to Celsius so let's do 120 catalogs go down with a page unit conversion and then go down. temperature and here Fahrenheit and Celsius so that's Fahrenheit to Celsius converted 48. let's say you want to convert three atmospheric pressure to Pascal so all clear 3 unit conversion and then go down. unit conversion go down pressure and here we can see that atmospheric pressure to Pascal is the first one I'm pressing an equal so we got the converted value now here are all the conversion that you can see in terms of length these are the conversion and terms of area for area you can get meter square and meters acre 2 meter volume energy now let's see how we can replace the battery for replacing battery for fx570 and FX 991 CW when you see this sign you need to replace the battery for 570 we will replace it with AAA Battery but for 991cw we will have rl44 and 4570 we have six screws you have to open and replace the battery but for 991cw we have only one screw and here so you can open that. and that's a battery get a flat screwdriver from here. you can remove the battery like that and as you can see because this is now there is light it's working if I cover this it will turn off fully let's to insert the battery back make sure that insert it like that from this side and this goes first and then put the screw. and tighten it. so if you get on your screen math error the range is exceeded or illegal key has been pressed like divided by if you get stack error that's a capacity of the stack or capacity of Matrix or vector have been exceeded from the amount that you're supposed to enter if you see syntax error you have not respected the format of writing if you get argument error formatting of writing like sign and then you did not enter the value a properly or properly not close and open it if you get the dimension error it's usually related to Matrix or vector if you get variable error it's related to solve only if you if you see cannot solve it's also related to solve only and if you get range error in table mode or it's in spreadsheet that is the range and then timeout is that the differential or integration related error when the system cannot solve it if you see circular error it means a spreadsheet mode for example if you reference A1 into A1 if you if you type in A1 equal A1 you get circular error if there is memory error it's spreadsheet mode runs out of memory and here is a technical information so a number of digits that fits on the screen is a 16 digit but you can type as many as you want and the calculation range is 0 or plus minus 1 times 2 to the power minus 99 to this number here and precision is plus minus one at 10 digit for single calculation and precision for exponential display is plus minus one at the least significant digit and here are all the specifications 4570 the battery is AAA or r03 an approximate battery life is two years if you use it to one hour per day the power consumption is around 80 800 micro Watts an operating temperature is up to 40 degrees Celsius or 104 for CC for 991cw the batteries are at 44 two years the same temperature the same temperature from 0 to 40 degrees Celsius this was a package that I received depending on the region that you are buying it the package might be different so let's open it six-month warranty extended warranty so very short small page no manual and here is the calculator so we are opening it from the top like that and then just. nothing else here this is the calculator. wow