Casio FX-9750GIIWE-L-IH, FX9750GIIWE User Manual

BEFORE USING THE CALCULATOR FOR THE FIRST TIME...

This calculator does not contain any main batteries when you purchase it. Be sure to perform the following procedure to load batteries, reset the calculator, and adjust the contrast before trying to use the calculator for the first time.

1. Remove the back cover from the calculator by pressing it in the direction indicated by arrow 1, and then sliding it in the direction indicated by arrow 2.

2. Load the four batteries that come with calculator.

• Make sure that the positive (+) and negative (–) ends of the batteries are facing correctly.

MAIN

BACK UP

3. Remove the insulating sheet at the location marked “BACK UP” by pulling in the direction indicated by the arrow.

MAIN

BACK UPBACK UP

4. Replace the back cover onto the calculator and turn the calculator front side up, which should automatically turn on power and perform the memory reset operation.

MAIN

5. Press m.

If the Main Menu shown to the right is not on the display, press the P button on the back of the calculator to perform memory reset.

6. Use the cursor keys ( or simply press

7. Use d and e to adjust contrast.

d makes figures on the screen lighter, while e makes them darker.

•

• Holding down

8. After adjusting the contrast, press

f , c, d, e ) to select the CONT icon and press w

to display the contrast adjustment screen.

d or e changes the contrast setting at high speed.

mto return to the Main Menu.

P button

KEYS

Alpha Lock

Normally, once you press a and then a key to input an alphabetic character, the keyboard reverts to its primary functions immediately. If you press ! and then a, the keyboard locks in alpha input until you press a again.

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KEY TABLE

Page Page Page Page Page Page 146

2 31333

25756

59 59

Page Page Page Page Page

151 129

333 4

57 56

56 56 56 56

57 46

174 164 136

55 55 55 55 57 46

24 23

55 55

55 46

49 46

Quick-Start

Switching Power On And Off Auto Power Off Function Using Modes Basic Calculations Replay Features Fraction Calculations Exponents Graph Functions Dual Graph Box Zoom Dynamic Graph Table Function

Quick-Start

Welcome to the world of graphing calculators and the CASIO fx-9750G. Quick-Start is not a complete tutorial, but it takes you through many of the most common

functions, from turning the power on to graphing complex equations. When you’re done, you’ll have mastered the basic operation of the fx-9750G and will be ready to proceed with the rest of this manual to learn the entire spectrum of functions available.

Each step of the examples in Quick-Start is shown graphically to help you follow along

quickly and easily. When you need to enter the number 57, for example, we’ve indicated it as follows:

Press

Whenever necessary, we’ve included samples of what your screen should look like.

If you find that your screen doesn’t match the sample, you can restart from the beginning by pressing the “All Clear” button

SWITCHING POWER ON AND OFF

To switch power on, press o. To switch power off, press

OFF

AUTO POWER OFF FUNCTION

Note that the unit automatically switches power off if you do not perform any operation for

about six minutes (about 60 minutes when a calculation is stopped by an output command (^)).

USING MODES

The fx-9750G makes it easy to perform a wide range of calculations by simply selecting

the appropriate mode. Before getting into actual calculations and operation examples, let’s take a look at how to navigate around the modes.

To select the RUN Mode

1. Press m to display the Main Menu.

Quick-Start

2. Use defc to highlight RUN and then

press

This is the initial screen of the RUN mode, where you can perform manual calculations, and run programs.

BASIC CALCULATIONS

With manual calculations, you input formulas from left to right, just as they are written on

paper. With formulas that include mixed arithmetic operators and parentheses, the calculator automatically applies true algebraic logic to calculate the result.

Example:

1. Press

2. Press

15 × 3 + 61

o to clear the calculator.

bf*d+gbw.

Parentheses Calculations

Example:

1. Press

15 × (3 + 61)

bf*(d +gb)w

Built-In Functions

The fx-9750G includes a number of built-in scientific functions, including trigonometric and

logarithmic functions.

Example:

25 × sin 45˚

Important!

Be sure that you specify Deg (degrees) as the angle unit before you try this

example.

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1. Presso.

SET UP

2. Press

3. Presscccc1 (Deg) to specify

degrees as the angle unit.

to switch the set up display.

Quick-Start

4. Press

5. Press

6. Press

J to clear the menu.

o to clear the unit.

cf*sefw.

REPLAY FEATURES

With the replay feature, simply press d or e to recall the last calculation that was

performed. This recalls the calculation so you can make changes or re-execute it as it is.

Example:

1. Press

2. Press

3. Press

To change the calculation in the last example from (25 × sin 45˚) to (25 × sin 55˚)

d to display the last calculation.

d twice to move the cursor under the 4.

4. Press

w to execute the calculation again.

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Quick-Start

FRACTION CALCULATIONS

You can use the $ key to input fractions into calculations. The symbol “ { ” is used to

separate the various parts of a fraction.

Example:

1. Presso.

2. Press

1 15/16 + 37/

b$bf$ bg+dh$ jw

Converting a Mixed Fraction to an Improper Fraction

While a mixed fraction is shown on the display, press

improper fraction.

Press

Converting a Fraction to Its Decimal Equivalent

While a fraction is shown on the display, press M to convert it to its decimal equivalent. Press

M again to convert back to a fraction.

d/c

again to convert back to a mixed fraction.

Indicates 6 7/

144

d/c

to convert it to an

EXPONENTS

Quick-Start

Example:

1. Presso.

2. Press

3. Press

4. Press

5. Press

1250 × 2.06

bcfa*c.ag.

M and the ^ indicator appears on the display.

f. The ^5 on the display indicates that 5 is

an exponent.

Quick-Start

GRAPH FUNCTIONS

The graphing capabilities of this calculator makes it possible to draw complex graphs

using either rectangular coordinates (horizontal axis: x ; vertical axis: y) or polar coordinates (angle:

; distance from origin: r).

Example

1. Press

2. Use

3. Input the formula.

1: To graph Y = X(X + 1)(X – 2)

d, e, f, and c to highlight GRAPH,

and then press

v(v+b) (v-c)w

4. Press 6 (DRAW) or w to draw the graph.

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Example

1. Press

2: To determine the roots of Y = X(X + 1)(X – 2)

! 5 (G-Solv).

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2. Press 1 (ROOT). Press

e for other roots.

Quick-Start

Example

1. Press

2. Press 6 (g).

3. Press

4. Use

3: Determine the area bounded by the origin and the X = –1

root obtained for Y = X(X + 1)(X – 2)

!5 (G-Solv).

3 (

∫

dx).

e to move the pointer to the location where X = –1,

and then press pointer to the location where X = 0, and then press to input the integration range, which becomes shaded on the display.

w. Next, use e again to move the

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Quick-Start

DUAL GRAPH

With this function you can split the display between two areas and display two graphs on

the same screen.

Example:

1. Press !Zcc1(Grph) to specify

2. Press

To draw the following two graphs and determine the points of intersection

Y1 = X(X + 1)(X – 2) Y2 = X + 1.2

“Graph” for the Dual Screen setting.

J, and then input the two functions.

v(v+b) (v-c)w v+b.cw

3. Press 6 (DRAW) or w to draw the graphs.

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BOX ZOOM

Use the Box Zoom function to specify areas of a graph for enlargement.

1. Press

2. Use d, e, f, and c to move the pointer

! 2 (Zoom) 1 (BOX).

to one corner of the area you want to specify and then

press

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