Top 20 Casio FX9750GII Graphic Calculator Questions & Answers

Read the comprehensive instructions that came with it or download the instructions.

The simplest way is X1=cos(T) Y1=sin(T) Set angle unit to radians, Set the Zoom window to SQR (square), otherwise your circle will look like an ellipse.

That backwards L is the fraction symbol. The FX9750 GII does nor have the Math display.

Press [SHIFT][Log_ab], below the ON button. Better use the MathIO input/Output mode.

Either you have an idea where the extremum (minimum/ maximum) might be (its x-value and maybe its y-value) and you set the center of the graph accordingly, or you zoom out until you locate it.Them you change the center of the graph to be about the position of the extremum. There is no ready made recipe that will work for any function. Just Trial and error. It might help calculating a few values of the function for x=0, x=-10. If the extremum happens to be within the table that the calculator generated to draw the graph, then it will be found.

Press [SHIFT][DEL] (INS) to toggle between INS and Overwrite. The cursor will change from a horizontal line to a vertical one.

Can it differentiate functions? Yes it can. More specifically, it can evaluate the 1st and 2nd derivatives of a given function at a given point (Numerical differentiation). On any graphed function you can configure the calculator to display the first derivative. When tracing the curve, the 1st derivative is also shown at the trace point. For any function, not graphed

What is the meaning of that question. Are you doing transformations? In that case you exchange the variables, not the axes.

We need verbs (actions) in your questions and interrogative pronouns too. Anyway, to have a numerical result displayed in scientific format, you must set the display to scientific. You must specify the number of decimal digits to keep. To set the display format, open the Run>Mat screen. Press [SHIFT][Menu] to open (Setup). Scroll Up to reach the line Display, press [F2] (Sci), type in the number of decimal digits, press EXE. See the screen captures below.

I believe you must rethink the design of your program If you have several inputs that lead to a single result you want to keep for further calculations, enter the inputs, calculate your result and store in a variable. The intermediate variables can be set to zero (by precaution) and reused. Use functions, and subroutines. Usually, in well designed programs, the scope of a variable defined inside a function or subroutine is local :It can't collide with the same name used globally (global scope). If a variable is no longer needed destroy it and reuse it..

Sorry, it is not clear. When dealing with trigonometric equations, there are usually an infinite number of solutions. This is due to the trigonometric functions being periodic.

In Run>Mat screen (Menu 1) Press the OPTN key. Press F4:CALC Press F6> Press F4:logab Alternatively, In Run >Mat press [SHIFT] 4 to enter the CATALOG. Press L to go to letter L in catalog, then scroll from there until you reach logab.

All calculator use scientific notation if the result is too small or too large. Some, like the Casio FX9750G II, offer you two Normal displays, Norm1 and Norm2 that have different limits when numbers are converted to scientific notations.Here is how to set one or the other.In Run>Mat press SHIFT MODE (Setup). Scroll down or up to reach the display line. Press F3 to select Norm1 or Norm2.

Hi Danny, is it correct battery. please check if it is good. leave it a half an hour wit case opening or heat it with 10-20 secs with hair dryer and try again with good battery, regards, nuwan

Here how it is done. Don't mind the calculator it was done on. On your you may have systems of up to 3 linear equations.Follow the screen captures. I do not think any additional comments are warranted. Pressing the F1 key (REPT)-- see last screen capture--allows the user to repeat the solution with the same coefficients or other ones (different system)

Create a list with the required dimension (n) In Run>Mat, Press OPTN > F1:List Using the keyboard , F3:Dim, and F1:List Type in n--->Dim List 1 (for example), Using the F4:Fill and F1:List tabs enter Fill(0, List 1) EXE

You can create two-element lists and store the results in them. Create a list L1 with dimension 2 Calculate the Polar coordinates of the point (1,1);: just an example The 1st element of List 1 is the radius, and the second element is the angle (in radians). Convert it to degrees if you wish. I won't do it. Now you must extract each element and store it in the r, and theta variables, [ALPHA][x^2] (r) and [ ALPHA] [^] (Theta) Extract radius and store in r. Extract angle and store in Theta. To store the rectangular coordinates (x,y) do the same as above. I will leave this pleasure to you. Note: I inserted screen captures from my calculator but I am not sure if the Parser will accept them. If it does not I will create an image file and insert it as media.

The F-D key converts a displayed result from fraction to decimal and vice-versa. If in the polynomial expression a numerical coefficient is a fraction just enter it as a fraction, possibly enclosed in parentheses. If it is a decimal number just enter it as a decimal number. Converting it to a fraction is not going to generate any more precision in the result. You lose precision when you go from fraction to decimal, but you do not make a number more precise by converting it from a decimal representation to a fraction.

Tell me where the key (or Submenu TAB) is and I will tell you how to use it. Apparently you were living in TI Planet and now have moved to Casio Planet and you need to adjust to the jet lag brought about by the transition.In Run>Mat press [SHIFT][ MODE] to enter the (Setup).. On the 5th line: Derivative set the selection to ON.Press Menu then Graph. Enter a function, validate and press F6:Draw. Once graph is draw press the F1:trace key. A CROSS appears on the graph indicating the default starting position. At the bottom of the screen you see X=, Y=, and dY/dX= The last one is obviously the value of the derivative at the position of the cross. Move the cursor to another point to see the values X, Y, and dY/dX.You can also enter a value of X to find Y and dY/dX. Make sure the X-value you enter is in the interval between Xmin and Xmax, the window limits.

What is the question. Your calculator FX-9750 GII does not have a Computer Algebra System or CAS, so you cannot factor a polynomial.If you want you can try to find the zeros of the polynomial function (the values of x when the function crosses the horizontal axis) either by solving P(x)=0 or by graphing y=P(x).Once you have the approximate roots x_1, x_2, ...,x_n, you can factor out the coefficient of the leading term (the term with the highest power) and write P(x) =a_n *G(x). here a_n is the coefficient of the leading term.G(x) can then be written as G(x)=(x-x_1)(x-x_2)*(x=x_3)...(x-x_n)and the original polynomial will beP(x)=a_n(x-x_1)(x-x_2)*...*(x-x_n)Note: Here is an example of P(x) and the corresponding G(x)P(x)=5x^3+7x^2-13x^+29P(x)=5(x^3+ (7/3)*x^2-(13/5)x+29/5)G(x)=x^3+ (7/3)*x^2-(13/5)x+29/5You should keep in mind that the roots are in general complex. Not all polynomials are factorisable in the set of Real numbers.