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

GETTING STARTED WITH THE
CASIO GRAPHIC CALCULATOR
fx9750GII

CONTENTS
Produced by Derek Smith and Monaco Corporation Ltd. Copyright ©2012
Getting Started with the Casio Graphic Calculator.
Chapter 1 Getting Started
Chapter 2 Graph Drawing
Chapter 3 Option, Variations and
Catalogue Keys
Chapter 4 Statistics
Chapter 5 Programming
Chapter 6 Other Icons
Chapter 7 Miscellaneous Functions of
the FX9750GII
Chapter 8 Normal, Binomial and
Poisson Distributions
Chapter 9 Connecting the FX9750GII to
other devices
Chapter 10 Key Index

fx9750GII
INTRODUCTION
INTRODUCTION | PG 5
The 14 Main Menu Icons
Select any mode from the MAIN MENU by using the arrow keys to highlight the MODE icon that you want or press any
of the digits 1 ~ 9 or letters A ~ E.
RUN–MAT
The scientic calculator with OPTION features.
To enter, and perform row/column operations on Matrices, up to dimensions of
8 x 8, basic calculations to complex number and calculus calculations, to name a
few.
STAT
For statistical calculations and statistical graphs, with univariate or bivariate data.
Statistical modelling using Binomial, Poisson and Normal distributions to name a
few. To manipulate lists (this can also be done in the STAT mode) or change List
Files.
GRAPH
To graph and analyse functions and relations, parametric graphs and polar graphs.
Storage of up to 20 different functions, with the ability to solve and differentiate
numerically. Equations entered can be of the form “Y=” or “X=”.
DYNA
To look at the effect of a changing constant or coefcient on the graph of a
function. A great demonstration tool for dynamic and animating graphs.
TABLE
Will produce a table of values for any function and its derivatives if required.
RECUR
To produce tables and graphs from, and analyse, recursive relations, such as
arithmetic and geometric sequences and series.
Congratulations on your recent purchase of the CASIO®FX9750GII.

INTRODUCTION
CONICS
To graph and analyse conics including circles, hyperbolas, ellipses and parabolas in
rectangular, parametric or polar formats.
EQUA
Will solve simultaneous equations (up to 6 x 6) and polynomials (degree 2 ~ 6),
displaying solutions in real and complex form. Also contains an equation solver to nd
the value of any pronumeral (letter) in an equation entered.
PRGM
Program mode. Use this mode to write and store programs, you can execute (run)
the programs here also.
TVM
Time, Value of Money and other nancial and economic calculations.
LINK
Allows the calculator to link to a PC or another CASIO calculators to transfer
programs and data, via the USB or 3-pin. Connection can also be made to a data
projector and settings.
E-CON
Connection to data logger EA200 and Motion sensors and other data collection
probes.
MEM
Memory. Shows memory usage and allows you to reset individual icon memory or
the entire calculator. Note that resetting the calculator will delete stored data and
programs. Contrast adjusts the contrast and grey scale balance.
SYSTEM
System setting and operating version. Language setting for calculator display.

fx9750GII
KEY
RESULT
KEY
RESULT
Top Screen Bottom Screen
KEY
GETTING STARTED
CHAPTER 1 | PG 7
Switching on and off
In order to start your Casio FX9750GII, after you have placed the four AAA batteries into the battery compartment,
do the following:
Screen
This is called the MAIN MENU
and can be accessed by:
What are the ‘Icon’ modes?
There are 14 different ‘icons’ that are accessible from the MAIN MENU by using the arrows to cover the particular
icon that you want to be in, or each icon has a number or letter associated with it, for quick key entry.
The user can use either the number keys 1 - 9, or the letter keys A - E
OR
use the replay arrows to highlight the icon and then press
In the RUN-MAT icon
Most of the calculator performances can be executed in this mode. The calculator has T.A.L (True Algebraic Logic)
embedded into its functionality.
Setting up within each icon
This screen display
assists the user in setting
up the calculator to the
specications that they
require. By selecting the
appropriate grey [F1], [F2],
[F3], [F4], [F5] or [F6]
keys you select the settings
you require.

KEY
KEY
Delete Insert
KEY
RESULT
GETTING STARTED
Returning to previous ‘Menus’ on the screens
Display
This mode determines the form in which
answers obtained from calculations will be
displayed.
Mode, Fraction result, Function Type, Draw Type, Derivative, Angle, Complex mode, Co-ordinate, Grid, Axis, Label,
Display and Simplify are self-explanatory settings.
Example
NORM 1 NORM 2
Editing entries
For editing any calculations, using the replay arrows changes can be made easily to text or numerical entries.
Editing can also be done by using the [DEL]ete and [INS]ert keys, move the cursor to where you want to do the
editing and strike these keys to complete the editing.
Toggling between the TEXT and GRAPH screen GT
There are two screens that ‘sit’ on top or underneath each other, the TEXT and GRAPH window. By pressing
[SHIFT] [F6] you can toggle between the two screens.

Example
Simplify 8 + 12 ÷ 4 - 2 Result
8+12÷4-2then EXE
Example 2
Simplify (8 + 12) ÷ 4 – 2 Result
(8+12)÷4-2then
EXE
Example 3
Simplify 8 + 12 ÷(4 – 2) Result
8+12÷(4-2)then
EXE
Example 4
Simplify (8 + 12) ÷(4 – 2) Result
(8+12)÷(4-2
)then EXE
KEY
then
KEY
fx9750GII
CHAPTER 1 | PG 9
Clear Screen
Clearing the Graphical Screen so that you don’t superimpose graphs can be done either by:
Basic activities in RUN-MAT icon
BEDMAS to reinforce the importance of the order of mathematical operations.
Enter V-Window and alter the viewing screen
domain and range values as desired.
OR
Enter Sketch.

KEY
KEY
KEY
KEY
Example
To add 3 1/7and 2 3/5together Result
3ab/cthen 1ab/cthen 7
+2ab/cthen 3ab/cthen 5then EXE
Example
Convert result of 3 1/7and 2 3/5 Result
SHIFT F↔D
Example
Convert result of 3 1/7and 2 3/5 Result
F↔D
Example
Enter 3/8: Result
3÷8then EXE
then F↔D
Decimal Fraction
GETTING STARTED
Basic activities in RUN-MAT icon cont.
Fractions, decimals and percentages
Fractions can be entered into calculations with the fraction key.
To convert to a mixed fraction
To convert to a decimal
To enter a fraction without the fraction key
OR

KEY
KEY
KEY
Example
Multiply 3/16 by 2.8 Result
3ab/c16x2.
8then EXE
Decimal Fraction
Example
Calculate 48% of $16.40 Result
48÷100x
16.4then EXE
48ab/c100x
16.4then EXE
Example
Evaluate √25 Result
SHIFT x225
then EXE
Example 2
Evaluate 3
√27 Result
SHIFT (27
then EXE
Example 3
Evaluate 25Result
2^5
then EXE
fx9750GII
CHAPTER 1 | PG 11
Percentage key
Powers and roots
Fractions and decimals can be calculated together.
The graphics calculator
does not have a specic
‘Percentage’ key. Just
remember that 48% is the
same as 48/100 or 0.48.

KEY
KEY
Example
Evaluate 4
√625 Result
4SHIFT ^625
then EXE
Example
Calculate V = (A – 4)(B + 4) where A = 30.34 and B = 47.5 Result
(30.34-4)(4
7.5+4)then EXE
Example
Calculate V = (A – 4)(B + 4) where A = 30.34 and B = 47.5 Result
30.34→Athen EXE
47.5→Bthen EXE
(A-4)(B+4)
then EXE
GETTING STARTED
Basic activities in RUN-MAT icon cont.
Powers and roots cont.
Algebraic Substitution
Enter the calculation by replacing each letter in the formula with its corresponding number.
When you have a number of algebraic substitutions to do then it would be easier to use the memory aspect of the
calculator keys. There are 28 different storage places i.e. A ~ Z, θand Γ. These are accessed via the [ALPHA] key then
the associated key required.
You ‘assign’ a value to the letters you want to use with the [→]
button, then enter the algebraic expression into the calculator. Press
[EXE] for the calculator to store the value in the memory.

fx9750GII
CHAPTER 1 | PG 13
Notes:

GRAPH DRAWING
KEY
Example
Draw the graph of y = √ x
Key AC/ON SHIFT F4 F5
Result
Key F1 SHIFT x2EXE
Result
Drawing graphs is easy using the FX9750GII! They can be drawn in the RUN-MAT or GRAPH icons.
RUN-MAT icon
The functions (and more) listed below (and there are
many more) have been ‘installed’ into the calculator
for quick graphing. Each has its own unique pre-set
domain and range values.
The graph as it appears on the screen gives a clear idea of the shape but no indication of the values on the horizontal
or vertical axis, except for ------+------ marks on the axes.
Note: There is no
need to include the
‘x’.
To nd information on a graph’s scale
View the domain and range values in V-Window.
This display tells the user that on the x-axis the scale is 2, and
hence the marks on the x-axis are 0, 2, 4, 6, 8, 10. The y-axis has
a scale of 1 and hence the marks on the y-axis are -1, 0, 1, 2, 3, 4.
KEY
RESULT

CHAPTER 2 | PG 15
Clearing the screen [Cls]
Graphs that need to have the Domain and Range edited
Changing the values in the V-Window is easily executed. Single editing or pre-set [F1] [F2] [F3].
Varying the Domain and Range is a necessary skill when developing the connections between the graphical,
symbolic and numerical aspects of equations.
Tracing functions
Note: Numerous graphs can be superimposed, allowing linear programming.
Separating each graph equation with a ‘ : ’ (colon) provides functions that can be traced and if necessary zoomed in
on to nd vertices that dene the feasible region (points of intersections) etc.
After each graph has been drawn then [SHIFT]
[F4] [F1] key followed by [EXE] is necessary to
clear the previously drawn graph, otherwise the
graphs will be superimposed.
Using the left and right arrows the user can trace over the graph and give accurate x and y values of many points
on the curve.
KEY RESULT
Example
For the graph y = (x - 1)/(x + 2) a suitable range could be -4 < x < 3 and
-6 < y < 6
Result
-4EXE , 3EXE , 1EXE , ,
-6EXE , 6 EXE , 1EXE then EXIT
Example
For the graph y = x^2, (i.e. y = x2) a suitable range could be -4 < x < 3 and -6 < y < 6.
Key SHIFT F1
Result
KEY
KEY
The interpretation of the graphed functions is supplemented by the use of the
Trace key. The (x, y) values of points on the curve are displayed underneath
the drawn graph.
fx9750GII

GRAPH DRAWING
Zooming in and out
The ‘zooming’ is easily initiated when parts of a graph need to be seen in more detail - ‘roots’ to the equation,
maximum or minimum points or other aspects under investigation.
Plotting points
Plotting points from tables for example is easy to do, as is drawing a line between these points.
By choosing BOX [F1] you can decide what ‘new’ domain and range values will be used
for the V-Window. To make the BOX use the arrows to determine where a vertex of the
BOX is to be then [EXE]. Use the arrows again to complete the BOX. When you are
satised with its position, press [EXE] and the new view window will be drawn.
Note:
1. The V-window will determine how ‘close’ the point being plotted is. The dimensions of the screen are 123 pixels wide
and 63 pixels deep. This is determined by the INITial settings in the V-window. More about the V-window settings later
(see index at back of book).
2. In the RUN-MAT icon you do not have access to the G-Solvefeatures.
Note: The different ‘menu bars’ as listed below.
FACT Scale factor for V-Window for IN ORIG The original graph drawn before zooming in or out
IN The calculator will zoom in on centre of screen SQR
OUT The calculator will zoom out on centre of screen RND
AUTO The calculator will calculate what it thinks best for
the graph to be drawn INTG
Next selection window PRE
Example
Plot the points 2, 3 & 5, 6
Key
SHIFT F4 F6 F1 F1
2,3EXE EXE
F6 EXE F1
5,6EXE
EXE SHIFT F6 EXIT
F2 F1 EXE
Result
KEY
RESULT
KEY

CHAPTER 2 | PG 17
GRAPH icon
From the MAIN MENU enter into the GRAPH icon by either moving the cursor to
highlight the icon or pressing the [3] key.
This part of the calculator has a lot of functionality. Stores graphs, up to 20
functions that you use regularly or ‘families’ of graphs where relationships and
special features can be viewed.
All of the ‘Function’ key menus, such as Trace, Zoom, V-Window, Sketch, Graphical Solutions and Graph - Text
are also available. It is also where you can view Graph - Graphs and Graph - Table split screens. The screen is split
vertically, giving very good views of what you have chosen to see.
You can draw equations and in-equations, rectangular, parametric and polar graph types. By selecting [F3] you can
view the different types.
How to chose the calculator settings (Set Up)
G-Solve features
Once you have drawn a graph
then you have access to the
G-Solve features.
cont. on next page
KEY
KEY
Example
Collate information about the function y = (x-2)(x+1) Result
(x+2)
Store the expression in position Y1
(X,
θ ,T -2)(X, θ ,T +1)ab/c
(X,
θ ,T +2)then EXE
Draw the graph
F6
Open the G-Solve selections
SHIFT F5
fx9750GII

GRAPH DRAWING
Basic activities in the GRAPH icon
Other G-Solve features are shown in other chapters in this book where appropriate.
This activity shows how the calculator can be used: to draw multiple lines; to see the relationship to the change in
the constant ‘c’ in y = mx + c and to draw multiple parabolas; to see the relationship to the change in the coefcient
‘a’ in y = ax2+ c.
A line - multiple representations for y = x + c
Note:
Make sure that the V-Window is appropriate to see the graphs that you will be drawing.
Enter [SHIFT] [F3] then the option that you require, in this case, [F1] for INITial. Go
back to the Graph Function menu with [EXIT] or [EXE].
Using, [A=-2,0,2] at the end if the equation gives the static effect of a ‘dynamic graph’.
Example
Draw the graphs of y = x - 2, y = x, y = x + 2 Result
X, θ ,T +ALPHA X, θ ,T ,SHIFT +ALPHA X, θ ,T SHIFT .
-2,0,2SHIFT -then EXE
EXE or F6
You will see these lines drawn one at a time.
SHIFT F1 then
‘Trace’ either of the three graphs.
Find the...
Root/s
SHIFT F5 F1
Minimum
SHIFT F5 F3
Maximum
SHIFT F5 F2
Y-intercept
SHIFT F5 F4
Y-value calculations
SHIFT F5 F6
F1
X-value calculations
SHIFT F5 F6
F2

CHAPTER 2 | PG 19
A parabola - multiple representations for y = ax2
Note:
Make sure that the V-Window is appropriate to see the graphs that you will be
drawing. Enter [SHIFT] [F3] then change the settings to the conditions shown here.
Go back to the Graph Function menu with [EXE] or [EXIT] .
Using, [A=1,2,3] at the end if the equation gives the effect of a ‘dynamic graph’.
Example
Draw the graphs of y = 1x2, y = 2x2, y = 3x2Result
ALPHA X,
θ ,T X, θ ,T x2,SHIFT +ALPHA X, θ ,T SHIFT .
1,2,3SHIFT -then EXE
EXE or F6
You will see parabolas being drawn one at a time.
SHIFT F1 then
‘Trace’ either of the three graphs.
Example 2
Draw the graphs of y = -1x2, y = -2x2, y = -3x2Result
ALPHA X,
θ ,T X, θ ,T x2,SHIFT +ALPHA X, θ ,T SHIFT .
-3,-2,-1SHIFT -then
EXE
EXE or F6
You will see parabolas being drawn one at a time.
SHIFT F1 then
‘Trace’ either of the three graphs.
fx9750GII

GRAPH DRAWING
Piecewise Functions
Note:
Piecewise functions are pieces of different functions, restricted in the domain (x-values) for which they are to be drawn.
Use [ , ] to restrict the domain values.
You can ‘trace’ over the graphs by pressing [SHIFT]
[F3] then use the arrows to scroll each of
the graphs on the screen.
Graph drawing – Zooming in and out
When the V-Window (Graph Viewing Window) has
not been set up for the graph that you want to see,
your screen will look like either of the following images.
Example
Draw the graphs of y = x², -2 ≤ x ≤ 1
y = -x + 4, 1 ≤ x ≤ 3
y = -2, -4 ≤ x ≤ -2
Result
X, θ ,T x2,SHIFT +-2,1SHIFT -EXE
-X,
θ ,T +4,SHIFT +1,3SHIFT -
EXE
-2,SHIFT +-4,-1SHIFT -
Set up the V-Window and then draw the graphs.
SHIFT F3 then EXE or F6
Auto Zoom
Using the AUTO ZOOM the calculator will adjust the axes so
that you can see ‘your graph’ better then you can adjust the
V-Window to a more appropriate scale to suit what you want. KEY
If you want to, change the View-Window to ‘zoom’ in on the graphs, to get a better picture (view).
To get AUTO ZOOM press [SHIFT] [F2] and then [F5].
A cursor appears in the middle of the screen. You can move it to the left, right, up or down to adjust the axes the [EXE]
to redraw.
cont. on next page
Basic activities in the GRAPH icon cont.