Casio FX-9750GII - SOFTWARE VERSION 2-00 User manual

Selecting the RUN Qicon will allow you to perform
general computations and arithmetic.
The function keys allow you to access the tab (soft key)
menus that will come up at the bottom of the screen.
When an uappears above the ukey, selecting u
will offer more on-screen choices.
The pkey displays every mode the calculator has. To
select a mode, you may $B to the desired icon and
press lor press the number or letter in the lower right
hand corner of the icon.
The dkey operates like the back arrow on a web
browser; it will take you back one screen each time you
select it. The dkey will not take you to the icon menu.
The xkey is a toggle key that will change answers or
entered numbers back and forth from decimal to fraction
form.
The Okey will power the unit on. To turn the unit off,
press the yellow Lkey, then Okey.
Thezkey is used to obtain a fraction bar. To obtain a
mixed number, press zafter inputting the whole number.
The lkey executes operations. When data is entered,
the lbutton must be pressed to store the data.
fx-9750GII
Quick
Reference Guide
White gradient to 50% transparency.
Note this logo is on separate layer from background

ICON Menu Name Description
QRUN This icon menu is used for general computations, including absolute value, logs
of any base, summation, derivatives, and integrals.
wSTATISTICS
This icon menu is used to perform single-variable (standard deviation) and
paired variable (regression) statistical calculations, to perform tests, to analyze
data and to draw statistical graphs.
GRAPH
This icon menu is used to quickly draw, store and calculate information of
functions. Can graph polar, parametric, x=, and inequality graphs on the same
screen.
DYNAMIC
GRAPH
This icon menu is used to draw multiple versions of a graph by changing the
values in a function.
TABLE This icon menu is used to draw multiple versions of a graph by changing certain
values in the function.
RECURSION
This icon menu is used to store recursion formulas, to generate a numeric
table of different solutions as the values assigned to the variables in a function
change, and to draw graphs.
CONICS
This icon menu is used to graph parabolas, circles, ellipses, and hyperbolas.
You can input a rectangular or polar coordinate function or a parametric
function for graphing.
EQUATION This icon menu is used to solve linear equations with two through six
unknowns, and high-order equations from 2nd to 6th degree.
PROGRAM This icon menu is used to store programs in the program area and to run
programs.
TIME VALUE
OF MONEY
This icon menu is used to preform nancial calculations and to create cash ow
and other types of graphs.
DATA
ANALYZER
LINK
This icon menu is use to control the optionally available EA-200 Data Analyzer.
For information about this icon menu, download the E-CON2 manual from
http://edu.casio.com.
LINK This icon menu is used to transfer memory contents or back-up data to another
unit or PC.
MEMORY This icon menu is used to manage data stored in memory.
SYSTEM This icon menu is used to initialize memory, adjust contrast, reset
memory, and to manage other system settings.
The following explains the meaning of each icon on the fx-9750GII icon menu
Getting Started with the fx-9750GII
2

RUN
This section is an overview of the RUN MAT Icon. To select an icon from the icon menu
system, use the !$BN to highlight the desired icon, then press lor press the
number/letter in the lower right corner of the icon. For the Run menu, press 1to display
the initial RUN screen.
1. When performing general computations, select zto enter fractions and mixed numbers.
To solve the problem input the following:
• 5z8+2z1z3l
2. To change the answer 24
71 to a mixed number, press LxX.
3. To change the answer to a decimal approximation, press x. xis a toggle key that will
switch entered data or answers from fraction to decimal form or decimal to fraction form.
4. To change the displayed number of decimal places, enter the SET UP menu Lp.
Nto Display, select q(Fix) and enter the desired amount of decimal places followed
by l. For this example, 3 decimal places are used.
Note: Every icon’s Set Up menu is accessed in the same way.
 • LpNNNNNNNNNNNq3ldlx
Getting Started with the fx-9750GII 3

RUN
From the RUN menu, many calculations can be entered by selecting i. For example:
hyperbolic, probability /distribution, numeric (including differential and integration), conversion,
engineering, complex number and binary, octal, decimal and hexadecimal calculations.
5. To calculate the possible number of different arrangements using 4 items selected from among
10 items, enter the following from the Run home screen:
• iue10w4l
Note: The xed decimal setting was changed back to Norm1.
6. To calculate -103+ 2 , enter the following from the RUN home screen:
• iew(n10^3+2)l

Note: Calculations can be performed with complex numbers and answers can be
displayed in a+bi form.
7. To calculate 3+4i ; enter the following from the RUN home screen:
• iew(3+4q)l

8. To calculate (-3 + 2i ) + 15i; enter the following:
• ie(n3+2q)+15ql
Getting Started with the fx-9750GII
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GRAPH
Various icon (Run, Table, Dynamic, Recursion & Conics) will allow you to graph or analyze the
graphs of given information. This section is an overview of the GRAPH Icon and will highlight
some basic features of this mode.
The initial screen allows immediate input of functions set equal to zero. You may begin inputting
data into Y1: and press lto store; to draw your function(s), select u.
You can change the type of graph (r = polar coordinates, parametric functions, x =, and
y-inequalities) by selecting the corresponding TYPE button and then press the $to begin
inputting information.
When the TYPE of graph is changed, it only effects the current line and entries below it.
Functions already stored are unchanged.
1. To draw the graph of the function y=2x2 -5x-3 from the Icon Menu system, input the following:

• 32fs-5f-3l
To quickly change your window, you can utilize the Replay arrows. Specic changes can be
made to the viewing window by selecting V-Win e.
To analyze features of this graph (roots, maximum and minimums, y-intercepts, intersections,
determine coordinates, and integrals) select y(G-Solve).
Getting Started with the fx-9750GII 5

2. q(Root):
Note: To display the next root, simply press $.
3. e(Minimum):
Note: As long as the x-value of your vertex is in the viewable domain; you do not need to see
the vertex to calculate the minimum value.
4. r(y-intercept):
5. q(y-calculation): What is the value of ywhen x is-5?
6. w(x-calculation): What is the value(s) of xwhen yis 1?
7. e(integral): Determine the integral value from (0,3) for the function Y1=2x2 - 5x-3.
GRAPH
Getting Started with the fx-9750GII
6

TABLE
The section is an overview of the TABLE Icon. To select this icon, you may highlight it and press
lor press 5.
The initial screen allows immediate input of functions that are set equal to 0.To change the type
of expression to be entered, press e(TYPE) and select w(r=) for polar coordinates, e(Parm)
for parametric functions or r(CONV) to convert a previously entered function to an inequality.
1. To see a table for the function -4, highlight Y1: and input the following:
• 2z3f-4lu
2. The default setting for tables is: X starts at 1, ends at 5, and increases by increments of 1.
You change this by pressing dor q(FORM) to return to the initial screen and then select
y(SET).
3. However, you can manually enter a number anywhere in the x-column of the table and
press lto see the corresponding y-value (including fractions, decimals, even π). You
can insert and delete rows in this view by pressing e(ROW). This is a quick way to custom
make tables.
Getting Started with the fx-9750GII 7

4. From the table view screen, you can press y(G-CON) to see a linear graph or u(G-PLT)
to see a plot graph for the function you entered.
5. To see a split screen of your table and graph, press Lpto enter the SET UP menu for the
TABLE icon. Scroll down to Dual Screen, select q(T + G), d, then u(TABL).
If you manually entered values to the previous table that you still want displayed, you can re-enter
them here, then press lto see the graph of that table.
TABLE
Getting Started with the fx-9750GII
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STATISTICS
This section is an overview of the STAT Icon; it will highlight just a few of the features for
single-variable data and paired-variable data. To select this icon, you may highlight it and
press lor press 2.
The initial List Editor Screen allows input of statistical data and performs numerous statistical
calculations. To input a list of single-variable data, highlight the rst cell under List 1 and enter
each number followed by l.
1. For this example, input this set of data:

2. From this screen, you can display various statistical graphs depending on whether you have
single or paired-variable data (scatter-plot, line, normal probability, histogram, median box,
mean box, normal distribution, broken line, and regression: linear, quadratic, cubic, quartic,
logarithmic, exponential, power, sinusoidal and logistic).
3. The initial default graph is a scatter-plot. To change the type of graph you would like to use,
press q(GRPH), then u(SET), Nto Graph Type:, for this set of data, we will make a
histogram, press u, and then qfor histogram.
Getting Started with the fx-9750GII 9

4. Press dto return to your list of data, select q(GPH1) and then lto see your graph.
5. The following screenshots show one-variable calculations that can be obtained by
pressing q.
6. To delete this set of data, press duntil you return to the initial List Editor screen. Select u
for more options, arrow up until List 1 is highlighted, select r(Del-A), then q.
7. For paired variable data, use the following:
Enter List 1 rst, and then $to begin entering List 2. The cursor will automatically move to the
beginning of the next list.
STATISTICS
Getting Started with the fx-9750GII
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8. To see a scatter-plot of these data, you can go through and change GPH 1 back, using the
process above, or select w(GPH 2) from the List Editor screen whose default is also a
scatter-plot.
9. From the scatter-plot screen, pressing qwill show all the calculations that can be obtained
from this set of data.
10. To calculate a linear regression for these data, select wfrom the rst set of options and then
press wfor the preferred form. For this example, we will use y = ax + b.
11. From this screen, select y(COPY) to copy and then paste the regression equation into the
initial Graph screen or select u(DRAW) to show the linear regression.
STATISTICS
Getting Started with the fx-9750GII 11

EQUATION
This section is an overview of the EQUATION Icon. To select this icon, highlight it and press l
or press 8.
The initial Equation Editor screen has three modes to choose from, Simultaneous, Polynomial,
and Solver; this section will give an overview of each mode.
The Simultaneous mode allows you to solve simultaneous linear equations that contain two to
six unknowns.
1. Solve the following system of equations:
 
Press qto select the Simultaneous mode and press wfor three unknowns. The calculator
will display a matrix where the coefcients and constants can be entered in to as long as each
equation is in standard form. To enter this system of equations (already in standard form) input
the following:
• 4 l 1 l n 2 l n 1 l
• 1 l 6 l 3 l 1 l
• n 5 l 4 l 1 l n 7 l
There are four options at the bottom of the screen, press q(SOLV). The solution to this
system is

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Press dto return to the previous screen, press q(REPT) to edit this problem or continue
solving simultaneous equations with three unknowns. To edit just one of the numbers in the
system, arrow to the number to be edited and press r(EDIT) or highlight the number to be
edited and just enter the new number, then press l.
Press duntil the Equation Editor screen is displayed. The second mode is wPolynomial
and can be used to solve high-order equations in standard form that are, from the 2nd to the
6th degree.
2. To solve the equation x3– 2x2– x + 2 = 0, input the following:

• ww1ln2ln1l2lq
3. To change the equation to x3+ 2x2+ 3x + 2 = 0, select q(REPT) and change the b-value to 2,
the c-value to 3 and press q(SOLV).
4. The default setting is for real numbers; to change the display to a+bi form, press Lpfor
the Polynomial SET UP menu, select w(a+bi), d, then q(SOLV).
Solver is the third function eand allows you to determine the value of any variable in a formula
or equation. You can input any formula exactly as it appears using afor any variables. In this
example, we will solve a linear equation and a formula.
EQUATION
Getting Started with the fx-9750GII 13

5. To nd the value of x in the following equation, 2(x -5) = -3x + 2, input the following, starting
from the Equation Editor Screen:

• e2(f-5)L.n3f+2lu
In the last screen, “Lft” and “Rgt” represent the values of the left and right sides of the equation
that have been calculated using the solution; this is the calculator’s way of checking the solution.
You can also enter a formula, assign values, and solve for a specic variable using the Solver
function of the Equation Editor.
6. Find the radius (to the nearest hundredth) of a sphere, whose volume is 3705.97 cm3. To enter
the formula input the following in to the calculator:
 • qBa2L.4z3Lca6^3l
Note: Selecting qwill take you back to the previous screen where you can edit and re-solve the
previous equation or begin a new problem.
EQUATION
Getting Started with the fx-9750GII
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CONICS
This section is an overview of the CONICS Icon. To select this icon, you may highlight it and press
lor press 7.
The initial CONICS screen allows you to choose from various conic functions, including
rectangular, polar or parametric form. You may use the BN to select the equation of the
function in accordance with the type of graph you want to draw. Once you have chosen the conic
function you would like to graph, enter the coefcients of the function and then press DRAW u.
1. To view the graph of the conic: y = 2x2 -5x -3, select the form from the Conics formula menu.

In the Conics modes, when you press y(G-Solv), although you are still graphing a parabola
like in the graphing section, notice how the vocabulary and options have changed to be conic
specic.
2. For example, you can now examine the line of symmetry for this parabola and the equation
of that line will be displayed.
You can continue to analyze different areas of this graph and the line of symmetry will still
be displayed.
Getting Started with the fx-9750GII 15

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