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Casio CFX-9850G PLUS User Manual

Casio calculator user's guide fx-9750g plus, cfx-9850g plus, cfx-9850gb plus, cfx-9950gb plus.
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fx-9750G PLUS
User's Guide


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   Summary of Contents for Casio CFX-9850G PLUS

  • Page 1

    PLUS CFX-9850G PLUS CFX-9850GB PLUS CFX-9950GB PLUS User’s Guide

  • Page 2: Before Trying To Draw A Graph

    PLUS owners... This manual covers the operations of various different calculator models. Note the meaning of the following symbols when using this manual. Symbol Indicates information about a function that is not supported by the fx-9750G PLUS. You can skip any information that has this mark next to it.

  • Page 3: Before Using The Calculator For The First Time

    BEFORE USING THE CALCULATOR FOR THE FIRST TIME... 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 o key, attach the case to the calculator and then turn the calculator over.

  • Page 4

    5. Press m. • If the Main Menu shown above is not on the display, press the P button on the back of the calculator to perform memory reset. 6. Use the cursor keys (f, c, d, e) to select the CONT icon and press w or simply press to display the contrast adjustment screen.

  • Page 5

    ABOUT THE COLOR DISPLAY The display uses three colors: orange, blue, and green, to make data easier to understand. • Main Menu • Graph Function Menu • Graph Display (Example 1) • Graph-To-Table Display • Table & Graph Numeric Table •...

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    • Statistical Regression Graph Example • When you draw a graph or run a program, any comment text normally appears on the display in blue. You can, however, change the color of comment text to orange or green. Example: To draw a sine curve 1.

  • Page 7

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

  • Page 8: Key Table

    KEY TABLE Page Page Page Page Page Page Page Page Page Page Page...

  • Page 9

    Quick-Start Turning Power On And Off Using Modes Basic Calculations Replay Features Fraction Calculations Exponents Graph Functions Dual Graph Box Zoom Dynamic Graph Table Function...

  • Page 10: Turning Power On And Off

    To turn power on, press To turn power off, press Note that the calculator automatically turns 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 (^)).

  • Page 11: Basic Calculations, Parentheses Calculations

    1. Press +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.

  • Page 12

    Quick-Start 1. Press SET UP 2. Press to switch the set up display. cccc1 3. Press degrees as the angle unit. 4. Press to clear the menu. 5. Press to clear the unit. cf*sefw 6. Press REPLAY FEATURES With the replay feature, simply press performed.

  • Page 13: Fraction Calculations

    FRACTION CALCULATIONS You can use the to separate the various parts of a fraction. Example: 1 1. Press b$bf$ 2. Press bg+dh$ Converting a Mixed Fraction to an Improper Fraction While a mixed fraction is shown on the display, press improper fraction.

  • Page 14

    Quick-Start EXPONENTS Example: 1250 × 2.06 1. Press bcfa* 2. Press 3. Press and the ^ indicator appears on the display. 4. Press . The ^5 on the display indicates that 5 is an exponent. 5. Press...

  • Page 15

    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 coordi- nates (angle: θ ; distance from origin: r). Example 1: To graph Y = X(X + 1)(X – 2) 1.

  • Page 16

    Quick-Start 2. Press (ROOT). Press for other roots. Example 3: Determine the area bounded by the origin and the X = –1 root obtained for Y = X(X + 1)(X – 2) 1. Press (G-Solv). 2. Press (g). ∫ 3. Press dx).

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    DUAL GRAPH With this function you can split the display between two areas and display two graphs on the same screen. Example: To draw the following two graphs and determine the points of intersection Y1 = X(X + 1)(X – 2) Y2 = X + 1.2 !Zcc1 1.

  • Page 18

    Quick-Start 3. Use again. As you do, a box appears on the display. Move the pointer so the box encloses the area you want to enlarge. 4. Press , and the enlarged area appears in the inactive (right side) screen. DYNAMIC GRAPH Dynamic Graph lets you see how the shape of a graph is affected as the value assigned to one of the coefficients of its function changes.

  • Page 19

    4. Press (VAR) of 1 to coefficient A. bwdwbw 5. Press (RANG) to specify the range and increment of change in coefficient A. 6. Press 7. Press (DYNA) to start Dynamic Graph drawing. The graphs are drawn 10 times. to assign an initial value Quick-Start 3456 ↓...

  • Page 20

    2. Use and then press 3. Input the formula. v(v+b) (v-c)w 4. Press (TABL) or table. To learn all about the many powerful features of this calculator, read on and explore! xviii , and to highlight TABLE, to generate the number...

  • Page 21: Handling Precautions

    • Avoid dropping your calculator and subjecting it to strong impact. • Do not store the calculator or leave it in areas exposed to high temperatures or humidity, or large amounts of dust. When exposed to low temperatures, the calculator may require more time to display results and may even fail to operate.

  • Page 22

    1 or 2 kbytes of memory free (unused) at all times. In no event shall CASIO Computer Co., Ltd. be liable to anyone for special, collateral, incidental, or consequential damages in connection with or arising out of the purchase or use of these materials.

  • Page 23

    • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • fx-9750G PLUS CFX-9850G PLUS CFX-9850GB PLUS CFX-9950GB PLUS •...

  • Page 24

    Contents Getting Acquainted — Read This First! ... 1 1. Key Markings ... 2 2. Selecting Icons and Entering Modes ... 3 3. Display ... 8 4. Contrast Adjustment ... 11 5. When you keep having problems..12 Chapter 1 Basic Operation ... 13 Before Starting Calculations...

  • Page 25

    Chapter 7 Equation Calculations ... 99 Before Beginning an Equation Calculation ... 100 Linear Equations with Two to Six Unknowns ... 101 Quadratic and Cubic Equations ... 104 Solve Calculations ... 107 What to Do When an Error Occurs ... 110 Chapter 8 Graphing ...

  • Page 26

    Contents Chapter 15 Table & Graph ... 205 15-1 Before Using Table & Graph ... 206 15-2 Storing a Function and Generating a Numeric Table ... 207 15-3 Editing and Deleting Functions ... 210 15-4 Editing Tables and Drawing Graphs ... 211 15-5 Copying a Table Column to a List ...

  • Page 27

    Connecting Two Units ... 400 21-2 Connecting the Unit with a Personal Computer ... 401 21-3 Connecting the Unit with a CASIO Label Printer ... 402 21-4 Before Performing a Data Communication Operation ... 403 21-5 Performing a Data Transfer Operation ... 404 21-6 Screen Send Function ...

  • Page 28

    Contents xxvi...

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