Casio Fx-9860G AU PLUS User manual

fx-9860G AU

User’s Guide

http://edu.casio.com

Important!

Please keep your manual and all information handy for

future reference.

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. Making sure that you do not accidently press the okey, slide the case onto the

calculator and then turn the calculator over. Remove the back cover from the calculator

by pulling with your finger at the point marked 1.

2. Load the four batteries that come with the calculator.

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

correctly.

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

direction indicated by the arrow.

4. Replace the back cover, making sure that its tabs enter the holes marked 2and turn

the calculator front side up. The calculator will turn on automatically and the MAIN

MENU will appear on the display.

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P button

•If the Main Menu shown to the right is not on the display,

open the back cover and press the P button located

inside of the battery compartment.

5. Use the cursor keys (f, c, d, e) to select the SYSTEM icon and press

w, then press 1( ) to display the contrast adjustment screen.

6. Adjust the contrast.

•The ecursor key makes display contrast darker.

•The dcursor key makes display contrast lighter.

•1(INIT) returns display contrast to its initial default.

7. To exit display contrast adjustment, press m.

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TURNING POWER ON AND OFF

USING MODES

BASIC CALCULATIONS

REPLAY FEATURE

FRACTION CALCULATIONS

EXPONENTS

GRAPH FUNCTIONS

DUAL GRAPH

DYNAMIC GRAPH

TABLE FUNCTION

Quick-Start

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Quick-Start

Welcome to the world of graphing calculators.

Quick-Start is not a complete tutorial, but it takes you through many of the most common

functions, from turning the power on, and on to graphing complex equations. When

you’re done, you’ll have mastered the basic operation of this calculator and will be ready

to proceed with the rest of this user’s guide 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 indi-

cated it as follows:

Press fh.

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 begin-

ning by pressing the “All Clear” button o.

TURNING POWER ON AND OFF

To turn power on, press o.

To turn power off, press !

OFF

Calculator power turns off automatically if you do not perform any operation within the

Auto Power Off trigger time you specify. You can specify either six minutes or 60

minutes as the trigger time.

USING MODES

This calculator 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 •MAT mode

1. Press mto display the Main Menu.

Quick-Start

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2. Use defc to highlight RUN •MAT

and then press w.

This is the initial screen of the RUN •MAT mode,

where you can perform manual calculations,

matrix 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:

15 ×3 + 61

1. Press oto clear the calculator.

2. Press bf*d+gbw.

Parentheses Calculations

Example:

15 ×(3 + 61)

1. Press bf*(d

+gb)w.

Built-In Functions

This calculator 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.

Quick-Start

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1. Press!m to display the Setup screen.

2. Press cccccc1(Deg)

to specify degrees as the angle unit.

3. Press Jto clear the menu.

4. Press oto clear the unit.

5. Press cf*sefw.

REPLAY FEATURE

With the replay feature, simply press dor eto recall the last calculation that

was performed so you can make changes or re-execute it as it is.

Example:

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

(25 ×sin 55˚)

1. Press dto display the last calculation.

2. Press dto move the cursor (

) to the right side of 4.

3. Press Dto delete 4.

4. Press f.

5. Press wto execute the calculation again.

Quick-Start

SET UP

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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:

31/16 + 37/9

1. Press o.

2. Press db$bg+

dh$jw.

Converting an Improper Fraction to a Mixed Fraction

While an improper fraction is shown on the display, press !Mto convert it to a

mixed fraction.

Press !Magain to convert back to an improper fraction.

Converting a Fraction to Its Decimal Equivalent

While a fraction is shown on the display, press Mto convert it to its decimal

equivalent.

Press Magain to convert back to a fraction.

Indicates 871/144

Quick-Start

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EXPONENTS

Example:

1250 ×2.065

1. Press o.

2. Press bcfa*c.ag.

3. Press Mand the ^indicator appears on the display.

4. Press f. The ^5 on the display indicates that 5 is an exponent.

5. Press w.

Quick-Start

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