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E
fx-9860G AU
User’s Guide
http://edu.casio.com
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Important! Please keep your manual and all information handy for future reference.
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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 o key, 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
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• 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. P button 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 e cursor key makes display contrast darker. • The d cursor key makes display contrast lighter. • 1(INIT) returns display contrast to its initial default. 7. To exit display contra
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Quick-Start TURNING POWER ON AND OFF USING MODES BASIC CALCULATIONS REPLAY FEATURE FRACTION CALCULATIONS EXPONENTS GRAPH FUNCTIONS DUAL GRAPH DYNAMIC GRAPH TABLE FUNCTION 20050401
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1 Quick-Start 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 hel
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2 Quick-Start 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. Pre
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3 Quick-Start SET UP 1. Press!m to display the Setup screen. 2. Presscccccc1(Deg) to specify degrees as the angle unit. 3. PressJ to clear the menu. 4. Presso to clear the unit. 5. Presscf*sefw. REPLAY FEATURE With the replay feature, simply press d or e to 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 d to display the last calculation. 2. Pres
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4 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. 31 37 Example: / + / 16 9 1. Presso. 2. Pressdb$bg+ dh$jw. 871 Indicates / 144 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 !M again to convert back to an improper fraction. Converting a Fraction to Its Decimal Equivalent
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5 Quick-Start EXPONENTS 5 Example: 1250 × 2.06 1. Presso. 2. Pressbcfa*c.ag. 3. PressM and the ^ indicator appears on the display. 4. Pressf. The ^5 on the display indicates that 5 is an exponent. 5. Pressw. 20050401
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6 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: θ ; distance from origin: r). All of the following graphing examples are performed starting from the calculator setup in effect immediately following a reset operation. Example 1: To graph Y = X(X + 1)(X – 2) 1. Press m. 2. Use defc to highlight GRAPH, and then press w. 3. Inpu
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7 Quick-Start 2. Press 1(ROOT). Press e 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 !5(G-SLV)6(g). 2. Press 3(∫dx). 3. Use d to move the pointer to the location where X = –1, and then press w. Next, use e to move the pointer to the location where X = 0, and then press to input the integration range, w which becomes shaded on the display. 20050401
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8 Quick-Start DUAL GRAPH With this function you can split the display between two areas and display two graph windows. Example: To draw the following two graphs and determine the points of intersection Y1 = X(X + 1)(X – 2) Y2 = X + 1.2 SET UP 1. Press !mcc1(G+G) to specify “G+G” for the Dual Screen setting. 2. Press 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. Box Zoom Use the Box Zoom function to specify areas of a graph for enlargement. 1
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9 Quick-Start 3. Use d e f c to move the pointer 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 w, 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. Example: To draw graphs as the value of coefficient A in the following function changes from 1 to 3 2 Y =
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10 Quick-Start 4. Press 4(VAR) bw to assign an initial value of 1 to coefficient A. 5. Press 2(SET) bwdwb wto specify the range and increment of change in coefficient A. 6. Press J. 7. Press 6(DYNA) to start Dynamic Graph drawing. The graphs are drawn 10 times. •To interrupt an ongoing Dynamic Graph drawing operation, press o. ↓ ↓↑ ↓↑ 20050401
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11 Quick-Start TABLE FUNCTION The Table Function makes it possible to generate a table of solutions as different values are assigned to the variables of a function. Example: To create a number table for the following function Y = X (X+1) (X–2) 1. Press m. 2. Use defc to highlight TABLE, and then press w. 3. Input the formula. v(v+b) (v-c)w 4. Press 6(TABL) to generate the number table. To learn all about the many powerful features of this calculator, read on and explore! 20050401
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Precautions when Using this Product A progress bar and/or a busy indicator appear on the display whenever the calculator is performing a calculation, writing to memory (including Flash memory), or reading from memory (including Flash memory). Busy indicator Progress bar Never press the P button or remove the batteries from the calculator when the progress bar or busy indicator is on the display. Doing so can cause memory contents to be lost and can cause malfunction of the calculator. This calcu
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Handling Precautions •Your calculator is made up of precision components. Never try to take it apart. •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. Correct operation will resume once the calculator is brought back to normal temperature. • T
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Be sure to keep physical records of all important data! Low battery power or incorrect replacement of the batteries that power the unit can cause the data stored in memory to be corrupted or even lost entirely. Stored data can also be affected by strong electrostatic charge or strong impact. It is up to you to keep back up copies of data to protect against its loss. In no event shall CASIO Computer Co., Ltd. be liable to anyone for special, collateral, incidental, or consequential damages in con
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1 Contents Contents Getting Acquainted — Read This First! Chapter 1 Basic Operation 1-1 Keys ................................................................................................. 1-1-1 1-2 Display .............................................................................................. 1-2-1 1-3 Inputting and Editing Calculations .................................................... 1-3-1 1-4 Option (OPTN) Menu .....................................................................
