fx-9750G PLUS CFX-9850G PLUS CFX-9850GB PLUS
CFX-9850GC PLUS CFX-9950GB PLUS
User’s Guide
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fx-9750G PLUS owners...
This manual covers the operations of various different calculator models. Note the meaning of the following symbols when using this manual.
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Indicates information about a function that is not supported by the fx-9750G PLUS. |
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You can skip any information that has this mark next to it. |
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8-1 Before Trying to Draw a Graph
k Entering the Graph Mode
On the Main Menu, select the GRAPH icon and enter the GRAPH Mode. When you do, the Graph Function menu appears on the display. You can use this menu to store, edit, and recall functions and to draw their graphs.
Memory area
Use fand cto change selection.
•{SEL} ... {draw/non-draw status}
•{DEL} ... {function delete}
•{TYPE} ... {graph type menu}
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• {COLR} ... {graph color} |
CFX |
• {GMEM} ... {graph memory save/recall} |
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• {DRAW} ... {graph draw} |
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indicates {COLR} is not supported by the fx-9750G PLUS.
CFX
CASIO ELECTRONICS CO., LTD.
Unit 6, 1000 North Circular Road,
London NW2 7JD, U.K.
Important!
Please keep your manual and all information handy for future reference.
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 okey, attach the case to 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.
1
2. Load the four batteries that come with calculator.
•Make sure that the positive (+) and negative (–) ends of the batteries are facing correctly.
BACK UP
3.Remove the insulating sheet at the location marked “BACK UP” by pulling in the direction indicated by the arrow.
BACK UP
4.Replace the back cover, making sure that its tabs enter the holes marked 2 and turn the calculator front side up. The calculator should automatically turn on power and perform the memory reset operation.
2
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5. Press m.
* The above shows the CFX-9850 |
* The above shows the fx-9750G |
(9950)G(B) PLUS screen. |
PLUS screen. |
• 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.
P button
6. Use the cursor keys (f, c, d, e) to select the CONT icon and press
E
wor simply presscto display the contrast adjustment screen.
CFX-9850(9950)GB PLUS, |
fx-9750G PLUS |
CFX-9850G PLUS |
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7. Adjust the contrast.
CFX
CFX
uTo adjust the contrast
• Use fand cto move the pointer to CONTRAST.
•Press eto make the figures on the display darker, and dto make them lighter.
uTo adjust the tint
1.Use fand cto move the pointer to the color you want to adjust (ORANGE, BLUE, or GREEN).
2.Press eto add more green to the color, and dto add more orange.
8. To exit display contrast adjustment, press m.
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ABOUT THE COLOR DISPLAY
CFX
The display uses three colors: orange, blue, and green, to make data easier to understand.
• Main Menu |
• Display Color Adjustment |
• Graph Function Menu
• Graph Display (Example 1) |
• Graph Display (Example 2) |
• Graph-To-Table Display |
• Dynamic Graph Display |
• Table & Graph Numeric Table |
• Recursion Formula Convergence/ |
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Divergence Graph Example |
iii
• Statistical Regression Graph Example
CFX
•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. Enter the GRAPH Mode and input the following.
3(TYPE)1(Y=)
(Specifies rectangular coordinates.)
svwf 45
(Stores the expression.)
2. 4(COLR)
23456
•Press the function key that corresponds to the color you want to use for the graph:
1for blue, 2for orange, 3for green.
3. 2(Orng)
(Specifies the graph color.)
J |
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4.6(DRAW) (Draws the graph)
You can also draw multiple graphs of different color on the same screen, making each one distinct and easy to view.
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KEYS
Alpha Lock
Normally, once you press aand 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 aagain.
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KEY TABLE |
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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
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, to specifying colors, 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 indicated 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 beginning by pressing the “All Clear” button o.
TURNING POWER ON AND OFF
To turn power on, press o.
OFF
To turn power off, press !o.
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 (^)).
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 Mode
1. Press mto display the Main Menu.
* The above shows the CFX-9850 (9950)G(B) PLUS screen.
viii
Quick-Start
2.Use defcto highlight RUN and then press w.
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: 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.
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Quick-Start
1. Press o.
SET UP
2.Press!mto switch the set up display.
3.Press cccc1(Deg) to specify degrees as the angle unit.
4.Press Jto clear the menu.
5.Press oto clear the unit.
6.Press cf*sefw.
REPLAY FEATURES
With the replay feature, simply press dor eto recall the last calculation that was performed. This recalls the calculation 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 dtwice to move the cursor under the 4.
3.Press f.
4.Press wto execute the calculation again.
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Quick-Start
FRACTION CALCULATIONS
You can use the $key to input fractions into calculations. The symbol “ {” is used to separate the various parts of a fraction.
Example: 1 15/16 + 37/9
1.Press o.
2.Press b$bf$
bg+dh$
jw.
Indicates 6 7/144
Converting a Mixed Fraction to an Improper Fraction
d/c
While a mixed fraction is shown on the display, press !$to convert it to an
improper fraction.
d/c
Press !$again to convert back to a mixed 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.
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Quick-Start
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.
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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).
Example 1: To graph Y = X(X + 1)(X – 2)
1.Press m.
2.Use d, e, f, and cto highlight GRAPH, and then press w.
3.Input the formula.
v(v+b) (v-c)w
4. Press 6(DRAW) or wto draw the graph.
Example 2: To determine the roots of Y = X(X + 1)(X – 2) 1. Press !5(G-Solv).
1
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Quick-Start
2.Press 1(ROOT). Press efor 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-Solv).
123456
2. Press 6(g).
123456
3.Press 3(∫dx).
4.Use dto move the pointer to the location where X = –1, and then press w. Next, use eto
move the pointer to the location where X = 0, and then press wto input the integration range, which becomes shaded on the display.
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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: To draw the following two graphs and determine the points of intersection
Y1 = X(X + 1)(X – 2)
Y2 = X + 1.2
1.Press !Zcc1(Grph) to specify “Graph” for the Dual Screen setting.
123456
2. Press J, and then input the two functions.
v(v+b) (v-c)w v+b.cw
3. Press 6(DRAW) or wto draw the graphs.
BOX ZOOM
Use the Box Zoom function to specify areas of a graph for enlargement.
1.Press !2(Zoom) 1(BOX).
2.Use d, e, f, and cto move the pointer
to one corner of the area you want to specify and then press w.
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Quick-Start
3.Use d, e, f, and cto 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
Y = AX2
1.Press m.
2.Use d, e, f, and cto highlight DYNA, and then press w.
3.Input the formula.
aAvxw
4
12356
xvi
Quick-Start
4.Press 4(VAR) bwto assign an initial value of 1 to coefficient A.
123456
5.Press 2(RANG) bwdwbw to 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.
↓
↓↑
↓↑
xvii
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 d, e, f, and cto highlight TABLE, and then press w.
3.Input the formula.
v(v+b) (v-c)w
4.Press 6(TABL) or wto generate the number table.
To learn all about the many powerful features of this calculator, read on and explore!
xviii
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.
•The display will go blank and keys will not operate during calculations. When you are operating the keyboard, be sure to watch the display to make sure that all your key operations are being performed correctly.
•Replace the main batteries once every 2 years regardless of how much the calculator is used during that period. Never leave dead batteries in the battery compartment. They can leak and damage the unit.
•Keep batteries out of the reach of small children. If swallowed, consult with a physician immediately.
•Avoid using volatile liquids such as thinner or benzine to clean the unit. Wipe it with a soft, dry cloth, or with a cloth that has been dipped in a solution of water and a neutral detergent and wrung out.
•Always be gentle when wiping dust off the display to avoid scratching it.
•In no event will the manufacturer and its suppliers be liable to you or any other person for any damages, expenses, lost profits, lost savings or any other damages arising out of loss of data and/or formulas arising out of malfunction, repairs, or battery replacement. The user should prepare physical records of data to protect against such data loss.
•Never dispose of batteries, the liquid crystal panel, or other components by burning them.
•When the “Low battery!” message appears on the display, replace the main power supply batteries as soon as possible.
•Be sure that the power switch is set to OFF when replacing batteries.
•If the calculator is exposed to a strong electrostatic charge, its memory contents may be damaged or the keys may stop working. In such a case, perform the Reset operation to clear the memory and restore normal key operation.
•If the calculator stops operating correctly for some reason, use a thin, pointed object to press the P button on the back of the calculator. Note, however, that this clears all the data in calculator memory.
•Note that strong vibration or impact during program execution can cause execution to stop or can damage the calculator’s memory contents.
•Using the calculator near a television or radio can cause interference with TV or radio reception.
•Before assuming malfunction of the unit, be sure to carefully reread this user’s guide and ensure that the problem is not due to insufficient battery power, programming or operational errors.
xix
Be sure to keep physical records of all important data!
The large memory capacity of the unit makes it possible to store large amounts of data. You should note, however, that 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.
Since this calculator employs unused memory as a work area when performing its internal calculations, an error may occur when there is not enough memory available to perform calculations. To avoid such problems, it is a good idea to leave 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. Moreover, CASIO Computer Co., Ltd. shall not be liable for any claim of any kind whatsoever against the use of these materials by any other party.
•The contents of this user’s guide are subject to change without notice.
•No part of this user’s guide may be reproduced in any form without the express written consent of the manufacturer.
•The options described in Chapter 21 of this user’s guide may not be available in certain geographic areas. For full details on availability in your area, contact your nearest CASIO dealer or distributor.
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fx-9750G PLUS CFX-9850G PLUS CFX-9850GB PLUS CFX-9850GC PLUS CFX-9950GB PLUS
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Contents
Getting Acquainted — Read This First! |
............................................................. 1 |
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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 |
1-1 |
Before Starting Calculations... ..................................................................... |
14 |
1-2 |
Memory ....................................................................................................... |
22 |
1-3 |
Option (OPTN) Menu .................................................................................. |
27 |
1-4 Variable Data (VARS) Menu ........................................................................ |
28 |
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1-5 |
Program (PRGM) Menu .............................................................................. |
34 |
Chapter 2 |
Manual Calculations ...................................................................... |
35 |
2-1 |
Basic Calculations ....................................................................................... |
36 |
2-2 |
Special Functions ........................................................................................ |
39 |
2-3 |
Function Calculations .................................................................................. |
43 |
Chapter 3 |
Numerical Calculations ................................................................. |
53 |
3-1 Before Performing a Calculation ................................................................. |
54 |
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3-2 |
Differential Calculations ............................................................................... |
55 |
3-3 |
Quadratic Differential Calculations .............................................................. |
58 |
3-4 |
Integration Calculations ............................................................................... |
60 |
3-5 |
Maximum/Minimum Value Calculations ....................................................... |
63 |
3-6 |
Summation (Σ) Calculations ........................................................................ |
65 |
Chapter 4 |
Complex Numbers ......................................................................... |
67 |
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4-1 Before Beginning a Complex Number Calculation ...................................... |
68 |
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4-2 Performing Complex Number Calculations ................................................. |
69 |
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Chapter 5 |
Binary, Octal, Decimal, and Hexadecimal Calculations ............. |
73 |
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5-1 Before Beginning a Binary, Octal, Decimal, or Hexadecimal |
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Calculation with Integers........................................................................ |
74 |
5-2 Selecting a Number System ........................................................................ |
76 |
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5-3 |
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Arithmetic Operations .................................................................................. |
77 |
5-4 Negative Values and Bitwise Operations .................................................... |
78 |
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Chapter 6 |
Matrix Calculations ........................................................................ |
79 |
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6-1 Before Performing Matrix Calculations ........................................................ |
80 |
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6-2 |
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Matrix Cell Operations ................................................................................. |
83 |
6-3 |
Modifying Matrices Using Matrix Commands .............................................. |
88 |
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6-4 |
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Matrix Calculations ...................................................................................... |
92 |
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Contents |
Chapter 7 |
Equation Calculations ................................................................... |
99 |
7-1 |
Before Beginning an Equation Calculation ................................................ |
100 |
7-2 |
Linear Equations with Two to Six Unknowns ............................................. |
101 |
7-3 |
Quadratic and Cubic Equations ................................................................. |
104 |
7-4 |
Solve Calculations ..................................................................................... |
107 |
7-5 |
What to Do When an Error Occurs ............................................................ |
110 |
Chapter 8 |
Graphing ....................................................................................... |
111 |
8-1 |
Before Trying to Draw a Graph .................................................................. |
112 |
8-2 |
View Window (V-Window) Settings ........................................................... |
113 |
8-3 |
Graph Function Operations ....................................................................... |
117 |
8-4 |
Graph Memory .......................................................................................... |
122 |
8-5 |
Drawing Graphs Manually ......................................................................... |
123 |
8-6 |
Other Graphing Functions ......................................................................... |
128 |
8-7 |
Picture Memory ......................................................................................... |
139 |
8-8 |
Graph Background .................................................................................... |
140 |
Chapter 9 |
Graph Solve.................................................................................. |
143 |
9-1 |
Before Using Graph Solve ......................................................................... |
144 |
9-2 |
Analyzing a Function Graph ...................................................................... |
145 |
Chapter 10 Sketch Function ........................................................................... |
153 |
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10-1 |
Before Using the Sketch Function ............................................................. |
154 |
10-2 |
Graphing with the Sketch Function ........................................................... |
155 |
Chapter 11 Dual Graph ................................................................................... |
167 |
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11-1 |
Before Using Dual Graph .......................................................................... |
168 |
11-2 |
Specifying the Left and Right View Window Parameters .......................... |
169 |
11-3 |
Drawing a Graph in the Active Screen ...................................................... |
170 |
11-4 |
Displaying a Graph in the Inactive Screen ................................................ |
171 |
Chapter 12 Graph-to-Table ............................................................................. |
175 |
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12-1 |
Before Using Graph-to-Table ..................................................................... |
176 |
12-2 |
Using Graph-to-Table ................................................................................ |
177 |
Chapter 13 Dynamic Graph ............................................................................ |
181 |
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13-1 |
Before Using Dynamic Graph .................................................................... |
182 |
13-2 |
Storing, Editing, and Selecting Dynamic Graph Functions ........................ |
183 |
13-3 |
Drawing a Dynamic Graph ........................................................................ |
184 |
13-4 |
Using Dynamic Graph Memory ................................................................. |
190 |
13-5 |
Dynamic Graph Application Examples ...................................................... |
191 |
Chapter 14 Conic Section Graphs ................................................................. |
193 |
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14-1 |
Before Graphing a Conic Section .............................................................. |
194 |
14-2 |
Graphing a Conic Section ......................................................................... |
195 |
14-3 |
Conic Section Graph Analysis ................................................................... |
199 |
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Contents
Chapter 15 Table & Graph .............................................................................. |
205 |
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15-1 Before Using Table & Graph ...................................................................... |
206 |
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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 .............................................................. |
216 |
Chapter 16 Recursion Table and Graph ........................................................ |
217 |
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16-1 |
Before Using the Recursion Table and Graph Function ............................ |
218 |
16-2 |
Inputting a Recursion Formula and Generating a Table ............................ |
219 |
16-3 |
Editing Tables and Drawing Graphs .......................................................... |
223 |
Chapter 17 List Function ................................................................................ |
229 |
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List Data Linking ................................................................................................... |
230 |
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17-1 |
List Operations .......................................................................................... |
231 |
17-2 Editing and Rearranging Lists ................................................................... |
233 |
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17-3 |
Manipulating List Data ............................................................................... |
237 |
17-4 |
Arithmetic Calculations Using Lists ........................................................... |
244 |
17-5 |
Switching Between List Files ..................................................................... |
248 |
Chapter 18 Statistical Graphs and Calculations .......................................... |
249 |
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18-1 Before Performing Statistical Calculations ................................................ |
250 |
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18-2 Paired-Variable Statistical Calculation Examples ...................................... |
251 |
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18-3 Calculating and Graphing Single-Variable Statistical Data ........................ |
257 |
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18-4 Calculating and Graphing Paired-Variable Statistical Data ....................... |
261 |
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18-5 |
Performing Statistical Calculations ............................................................ |
270 |
18-6 |
Tests .......................................................................................................... |
276 |
18-7 |
Confidence Interval ................................................................................... |
294 |
18-8 |
Distribution ................................................................................................ |
304 |
Chapter 19 Financial Calculations ................................................................. |
321 |
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19-1 Before Performing Financial Calculations ................................................. |
322 |
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19-2 |
Simple Interest Calculations ...................................................................... |
324 |
19-3 |
Compound Interest Calculations ............................................................... |
326 |
19-4 |
Investment Appraisal ................................................................................. |
337 |
19-5 Amortization of a Loan .............................................................................. |
341 |
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19-6 Conversion between Percentage Interest Rate and Effective |
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Interest Rate ........................................................................................ |
345 |
19-7 Cost, Selling Price, Margin Calculations ................................................... |
347 |
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19-8 |
Day/Date Calculations ............................................................................... |
349 |
Chapter 20 Programming ............................................................................... |
351 |
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20-1 |
Before Programming ................................................................................. |
352 |
20-2 |
Programming Examples ............................................................................ |
353 |
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Contents |
20-3 |
Debugging a Program ............................................................................... |
358 |
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20-4 |
Calculating the Number of Bytes Used by a Program ............................... |
359 |
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20-5 |
Secret Function ......................................................................................... |
360 |
|
20-6 |
Searching for a File ................................................................................... |
362 |
|
20-7 |
Searching for Data Inside a Program ........................................................ |
364 |
|
20-8 |
Editing File Names and Program Contents ............................................... |
365 |
|
20-9 |
Deleting a Program ................................................................................... |
368 |
|
20-10 |
Useful Program Commands ...................................................................... |
369 |
|
20-11 |
Command Reference ................................................................................ |
371 |
|
20-12 |
Text Display ............................................................................................... |
388 |
|
20-13 |
Using Calculator Functions in Programs ................................................... |
389 |
|
Chapter 21 Data Communications ................................................................. |
399 |
||
21-1 |
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 ............................................................................... |
408 |
|
21-7 |
Data Communications Precautions ........................................................... |
409 |
|
Chapter 22 Program Library ........................................................................... |
411 |
||
1. Prime Factor Analysis ...................................................................................... |
412 |
||
2. Greatest Common Measure ............................................................................. |
414 |
||
3. t-Test Value ...................................................................................................... |
416 |
||
4. Circle and Tangents ......................................................................................... |
418 |
||
5. Rotating a Figure .............................................................................................. |
425 |
||
Appendix ........................................................................................................... |
|
|
429 |
Appendix A |
Resetting the Calculator ................................................................. |
430 |
|
Appendix B |
Power Supply ................................................................................. |
432 |
|
Appendix C |
Error Message Table ...................................................................... |
436 |
|
Appendix D |
Input Ranges .................................................................................. |
438 |
|
Appendix E |
Specifications ................................................................................. |
441 |
|
Index ..................................................................................................................... |
|
|
443 |
Command Index ................................................................................................... |
449 |
||
Key Index .............................................................................................................. |
|
450 |
|
Program Mode Command List .............................................................................. |
453 |
||
xxv
Contents
xxvi
Getting Acquainted
— Read This First!
About this User’s Guide
uFunction Keys and Menus
•Many of the operations performed by this calculator can be executed by pressing function keys 1through 6. The operation assigned to each function key changes according to the mode the calculator is in, and current operation assignments are indicated by function menus that appear at the bottom of the display.
•This user’s guide indicates the current operation assigned to a function key in parentheses following the key cap marking for that key. 1(Comp), for example, indicates that pressing 1selects {Comp}, which is also indicated in the function menu.
•When {g} is indicated in the function menu for key 6, it means that pressing 6 displays the next page or previous page of menu options.
uMenu Titles
•Menu titles in this user’s guide include the key operation required to display the menu being explained. The key operation for a menu that is displayed by pressing Kand then {MAT} would be shown as: [OPTN]-[MAT].
•6(g) key operations to change to another menu page are not shown in menu title key operations.
uCommand List
•The Program Mode Command List (page 453) provides a graphic flowchart of the various function key menus that shows how to maneuver to the menu of commands you need. Example: The following operation displays Xfct: [VARS]-[FACT]-[Xfct]
uIcons Used in This User’s Guide
• The following are the meanings of the icons used in this user’s guide.
: Function not supported by fx-9750G PLUS
CFX
: Important 
: Note P.000 : Reference page
Acquainted Getting
Read — First! This
1. Key Markings
Many of the calculator’s keys are used to perform more than one function. The functions marked on the keyboard are color coded to help you find the one you need quickly and easily.
|
Function |
Key Operation |
|
|
|
1 |
log |
l |
|
|
|
2 |
10x |
!l |
|
|
|
3 |
B |
al |
|
|
|
The following describes the color coding used for key markings.
Color |
Key Operation |
|
|
Orange |
Press !and then the key to perform the marked |
|
function. |
|
|
Red |
Press aand then the key to perform the marked |
|
function. |
|
|
2
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