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Casio CFX-9800G-w Owners Manual - Page 191

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Appendix A Power supply This unit is powered by two AAA-size (LR03 (AM4) or UM-4) batteries. In addition, it uses a single CR2032 lithium battery as a back up power supply for the memory. ■When to Replace Batteries If the following message appears on the display, immediately stop using the calculator and replace batteries. *'*Low battery Noll If you try to continue using the calculator, it will automatically switch power off, in order to protect memory contents. You will not be able to switch power back on until you replace batteries. Be sure to replace batteries at least once every two years, no matter how much you use the calculator during that time. Warning! • If you remove both the main power supply and the memory back up batteries at the same time, all memory contents will be erased. Be sure to read the following section before doing anything. The batteries that come installed in this unit when you purchase it are for factory test purposes, so they will probably not provide normal service life. ■Replacing Batteries Precautions: Incorrectly using batteries can cause them to burst or leak, possibly damaging the interior of the unit. Note the following precautions: •Be sure that the positive ®+ and negative 0 poles of each battery are facing in the proper directions. •Never mix batteries of different types. •Never mix old batteries and new ones. •Never leave dead batteries in the battery compartment. •Remove the batteries if you do not plan to use the unit for long periods. •Never try to recharge the batteries supplied with the unit. •Do not expose batteries to direct heat, let them become shorted, or try to take them apart. 0 (Should a battery leak, clean out the battery compartment of the unit immediately, taking care to avoid letting the battery fluid come into direct contact with your skin.) -346- Keep batteries out of the reach of small children. If swallowed, consult with a physician immediately. •To replace the main power supply batteries Important •Never remove the main power supply and the memory back up batteries from the unit at the same time: *Be sure to switch the unit off before replacing batteries. Replacing batteries with power on will cause data in memory to be deleted. *Never replace the mainpower supply battery compartmentcover or switch the calculator on while the main power supply batteries are removed from the calculator or not loaded correctly. Doing so can cause memory data to be deleted and malfunction of the calculator. If mishandling of batteries causes such problems, correctly load batteries and then perform the RESET operation (page 349) to resume normal operation. *Be sure to replace all two batteries with new ones. ®Switch the power of the calculator off, and slide the calculator into its hard case. ®Remove screw ®on the back of the calculator, and remove the main battery compartment cover. @Remove the two old batteries. e ®Load a new set of two batteries, making surethat' their Positive C) and negative ends'are facing in the proper directions. C)Insert the tabs of the main battery compartment cover into the slots inthe back of the calculator and replace the cover. Secure it in place with the screw. •Power will not switch on if you press Mg while the main power supply battery compartment cover is open. screw @Remove the calculator from its hard case and press CE to switch power on. •Power supplied by memory back-up batteries while the main power supply batteries are removed retains memory contents. •Do not leave the unit without main power supply batteries loaded for long periods. Doing so can cause deletion of data stored in memory. -347-

Section	Page
Contents	19
Handling Precautions	23
Aobut This Manual	23
Chapter1 Getting Acquainted	24
1-1 Keys and Their Functions	25
The Keyboard	25
Key Operations	25
1-2 Modes	28
Set Up Displays	28
Set Up Display Function Key Menus	29
About Display Colors	31
About Function Key lcons	31
1-3 Basic Set Up	32
Default unit of Angular Measurement	32
About the DISP Menu	32
Color Contrast Adjustment	33
1-4 Basic Operation	34
Using the Clear Menu	34
Inputting Calculations	34
Editing Calculations	34
Answer Function	35
Using Multistatements	35
Multiplication Operations without a Multiplication Sign	36
Performing Continuous Calculations	36
Using the Replay Function	36
Built-in Scientific Functions	37
Value Memories	38
Increasing the Number of Value Memories	39
About Memory Names	39
1-5 Using the Function Memory	39
Variable Data (VAR) Menu	40
1-6 Using the BASE Mode	44
1-7 Graphic and Text Displays	46
1-8 Technical Information	46
Calculation Priority Sequence	46
Stacks	47
Value Input and Output Limitations	47
Input Capacity	47
Overflow and Errors	47
Exponential Display	48
Calculation Execution Display	48
When Errors Keep Occurring	48
Chapter 2 Manual Calculations	49
2-1 Arithmetic Calculations	50
Calculations Using Parentheses	50
2-2 Units of Angular Measurement	51
2-3 Trigonometric and Inverse Trigonometric Functions	51
2-4 Logarithmic and Exponential Functions	51
2-5 Hyperbolic and Inverse Hyperbolic Functions	52
2-6 Other Functions	52
2-7 Coordinate Conversion	53
2-8 Permutation and Combination	53
2-9 Fractions	54
2-1O Engineering Symbol Calculations	54
2-11 Number of Decimal Places, Number of Significant Digits, Display Format	55
2-12 Calculations Using Memory	55
2-13 BASE Mode Calculations	56
Conversions	56
Negative Values	56
Arithmetic Operations	56
Logical Operations	56
Chapter 3 Differential, Integration, and Calculations	57
3-1 How the Unit Calculates Differentials	58
To Perform a Differential Calculation	58
Applications of Differential Calculations	59
3-2 How the Unit Calculates Integrations	59
To Perform an Integration Calculation	60
Application of Integration Calculation	60
3-3 ~Calculations	61
Example ~ calculation	61
~ Calculation Applications	62
~ Calculation Precautions	62
Chapter 4 Complex Numbers	62
4-1 Before Beginning a Complex Number Calculation	63
4-2 Performing Complex Number Calculations	63
Arithmetic Operations	63
Reciprocals, Square Roots, and Squares	63
Absolute Value and Argument	63
Conjugate Complex Numbers	64
Extraction of Real and Imaginary Number Parts	64
4-3 Complex Number Calculation Precautions	64
Chapter 5 statistical Calculations	65
5-1 Single-Variable Stetistical Calculations	66
To Enter the Standard Deviation Mode without Data Storage	66
To Enter the Standard Deviation Mode with Data Storage	67
Performing Single-Variable Calculations	68
5-2 Paired-Variable Statistical Calculations	69
To Enter the Regression Mode without Data Storage	69
Linear Regression	70
Logarithmic Regression	70
Exponential Regression	70
Power Regression	71
To Enter the Regression Mode with Data Storage	71
Performing Paired-Variable Calculations	72
5-3 Examples of Statistical Calculations	72
Linear Regression	74
Logarithmic Regression	74
Exponential Regression	75
Power Regression	75
Chapter 6 Using the Matrix Mode	76
6-1 Before Performing Matrix Calculations	77
Entering the Matrix Mode	77
Matrix List	77
Matrix Input	77
Deleting Matrices	79
6-2 Modifying a Matrix	79
Before Modifying a Matrix	79
Row Operations	80
Modifying the Contents of a Matrix	81
Deleting, Inserting and Adding Rows	81
Deleting, Inserting and Adding Columns	83
6-3 Matrix Calculations	84
Arithmetic Operations	84
Calculating a Scalar Product	85
Determinants	86
Transposing a Matrix	86
Inverting a Matrix	87
Squaring a Matrix	87
6-4 Matrix Operation Precautions	88
Chapter7 Equation Calculations	88
7-1 Before Beginning and Equation Calculation	89
Entering an Equation Calculation Mode	89
Clearing the Equation Memories	89
7-2 Linear Equations with Two to Six Unknowns	89
Entering the Linear Equation Mode for Two to Six Unknowns	89
Solving a Linear Equation with Three Unknowns	90
Changing Coefficients	90
Clearing All the Coefficients	91
7-3 Quadratic and Cubic Equations	91
Entering the Quadratic/Cubic Equation Mode	91
Solving a Quadratic or Cubic Equation	91
Quadratic Equations that Produce Multiple Root (1 or 2) Solutions or Imaginary Number Solutions	92
Changing Coefficients	92
Clearing All the Coefficients	92
7-4 What to Do When an Error Occurs	92
Chapter 8 Graphing	93
8-1 About the Graphing Function	94
Specifying the Range of a Graph	94
Initializing the Range Parameter Display Settings	96
8-2 Rectangular Coordinate Graphs	96
Graphing Built-in Scientific Functions	96
Overdrawing Built-in Function Graphs	97
Graphing Manually Entered Functions	97
Overdrawing Manually Input Graphs	97
Specifying the Graph Range	98
8-3 Polar Coordinate Graphs	98
Graphing Built-In Scientific Functions	98
Graphing Manually Entered Functions	98
Specifying the Graph Range	99
8-4 Parametric Graphs	99
Specifying the Graph Range	100
8-5 Inequality Graphs	100
Overdrawing Inequality Graphs	101
Specifying the Graph Range	101
8-6 Integration Graphs	101
8-7 Probability Distribution Graphs	102
8-8 Single-Variable Statistical Graphs	103
8-9 Paired-Variable Statistical Graphs	105
8-10 Storing Functions in Memory	106
Accessing the Graphic Function Memory	106
Graph Function Types	106
Editing Graph Functions in Memory	108
Drawing Graphs from Memory	108
Specifying the Graphs to be Drawn	108
Function Linking	109
8-11 Graph Solve	110
Displaying the Graph Solve Menu	110
Determining Roots	111
Determining Maximums and Minimums	112
Determinig y-intercepts	112
Determining Points of Intersection for Two Graphs	112
Determining a Coordinate ( x for a given y/y for a given x)	113
Determining the Derivative for a Given Point	114
8-12 Other Graph Functions	115
Setting the Type of Graphing Method	115
Trace Function	115
Scrolling Graphs	117
Notes on Using the Trace Function	117
Plot Function	118
Line Function	120
Graph Scroll Function	121
Zoom Functions	122
Before Using Zoom	122
Box Zoom Function	122
Using the Factor Zoom Function to Enlarge and Reduce the Entire Graph	123
Auto Range	126
Graph Adjust	127
Coordinate Rounding	128
Using the Overwrite Function	128
8-13 Some Graphing Examples	129
Chapter 9 Dual Graph	130
9-1 Before Using Dual Graph	131
About Dual Graph Screen Types	131
9-2 Specifying the Left and Right Display Range Parameters	131
9-3 Drawing a Graph in the Active Screen	132
9-4 Displaying a Graph in the Inactive Screen	133
Before Displaying a Graph in the Inactive Screen	133
Copying the Active Graph to the Inactive Screen	133
Switching the Contents of the Active and Inactive Screens	134
Drawing Different Graphs on the Active Screen and Inactive Screen	134
Other Graph Functions with Dual Graph	135
Chapter 10 Dynamic Graphing	137
10-1 Before Using the Dynamic Graph Mode	138
10-2 Inputting a New Equation	138
10-3 Editing a Function	139
10-4 Deleting a Function	139
10-5 Drawinig a Dynamic Graph	140
1O-time Continuous Drawing	141
Continuous Drawing	142
Stop & Go Drawing	143
Overwriting	143
Function Linking	144
Chapter 11 Table and Graph Mode	145
11-1 Entering the Table and Graph Mode	146
11-2 Generating a Table and Drawing a Graph for a Function	146
Storing a Function and Generating a Numeric Table	146
Editing a Function	149
Function Linking	150
Editing a Table List	150
Deleting List Area Contents	151
Editing Function and Table Data	151
Row Operations	152
Drawing a Graph Using Table Data	153
Before Drawing a Graph	153
Specifying the Graphs to be Drawn	153
11-3 Using the Table and Graph Mode with a Recursion Formula	154
Editing Table Data	156
Drawing a Graph Using Table Data	157
Specifying the Y-Axis and. X-Axis for the Graph	157
Chapter 12 Program/File Editor Mode	158
12-1 Before Using the Program/File Editor Mode	159
12-2 Using the Program Mode	159
Entering the Program Mode	159
Specifying the Calculation Mode	159
Selecting a Program Area	160
Checking How Much Memory Is Used by a program	160
Inputting a Program	160
Executing a Program Stored in Memory	160
12-3 Deleting Programs	161
12-4 Error Messages	162
12-5 Counting the Number of Bytes	162
Checking the Amount of Memory Remaining	162
Checking Where the Cursor Is Currently Located	162
12-6 Using the File Editor Mode	162
Entering the File Editor Mode	162
Password Protection	163
Inputting Data into a File	164
Inputting Program Commands	164
Inputting Upper-Case and Lower-Case Alpha Characters	164
Inputting Symbols	164
Executing a Program	165
Checking the Memory Used by a Program	166
Searching for Files	166
Searching for Data in a File	167
Editing File Data	168
Other Useful Cursor Movement Functions	169
12-7 Program Commands	169
Displaying the Program Function Menu	169
About the Newline Funtction	169
Displaying the Jump Command Menu	169
Displaying the Relational Operator Menu	170
Displaying the Punctuation Symbol Menu	170
12-8 Using Jump Commands	170
About Unconditional Jumps	170
About Conditional Jumps	171
About Count Jumps	171
12-9 Using Subroutines	172
Subroutines Save Memory	172
12-10 Using Array Memory	172
Array Memories to Simplify Programming	173
Cautions When Using Array Memories	173
Sample Programs That Use Array Memory	173
12-11 Displaying Text Messages	174
12-12 Using Matrices in Programs	175
12-13 Using the Graph Function in Programs	176
Chapter 13 Data Communications	177
13-1 Connecting Two CFX-980OG Units	178
13-2 Connecting the CFX-9800G with a Personal Computer	178
13-3 Connecting the CFX-9800G to a CASIO Label Printer	178
13-4 Before Starting Data Communications	179
Entering the LINK Mode	179
About the Data Type Selection Screen	179
13-5 Setting Communications Parameters	180
Setting CFX-9800G Parameters	180
13-6 Using ALL, Range, and Factor	181
13-7 Using Program, Function Mem, Matrix, and Graph Function	182
13-8 Using Editor	183
13-9 ,Using Statistics, Variable Mem, Table, and Equation	185
13-10 Using Dynamic Graph	187
13-11 Using Back Up to Send All Mode Settings and Memory Data	188
13-12 Screen Copy Function	189
To Copy the Screen	189
13-13 Data Communications Precautions	190
Appendix	190
Appendix A Power Supply	191
When to Replace Batteries	191
Replacing Batteries	191
About the Auto Power Off Function	192
Appendix B To Reset the Calculator	192
Appendix C Function Reference	193
Manual Calculations	193
Program Calculations	196
Appendix D Error Message Table	197
Appendix E Input Ranges	198
Appendix F Specifications	200
Index	202

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Appendix

Power

supply

This

unit

powered

two

AAA

-size

(LR03

(AM4)

-4)

batteries.

addition,

uses

single

CR2032

lithium

battery

back

power

supply

for

the

memory.

■When

Replace

Batteries

the

following

message

appears

the

display,

immediately

stop

using

the

calculator

and

replace

batteries.

*'*Low

battery

Noll

you

try

continue

using

the

calculator,

will

automatically

switch

power

off,

order

protect

memory

contents.

You

will

not

able

switch

power

back

until

you

replace

batteries.

sure

replace

batteries

least

once

every

two

years,

matter

how

much

you

use

the

calculator

during

that

time.

Warning!

•

you

remove

both

the

main

power

supply

and

the

memory

back

batteries

the

same

time,

all

memory

contents

will

erased.

sure

read

the

following

section

before

doing

anything.

The

batteries

that

come

installed

this

unit

when

you

purchase

are

for

factory

test

purposes,

they

will

probably

not

provide

normal

service

life.

■Replacing

Batteries

Precautions:

Incorrectly

using

batteries

can

cause

them

burst

leak,

possibly

damaging

the

interior

the

unit.

Note

the

following

precautions:

•Be

sure

that

the

positive

®+

and

negative

poles

each

battery

are

facing

the

proper

directions.

•Never

mix

batteries

different

types.

•Never

mix

old

batteries

and

new

ones.

•Never

leave

dead

batteries

the

battery

compartment.

•Remove

the

batteries

you

not

plan

use

the

unit

for

long

periods.

•Never

try

recharge

the

batteries

supplied

with

the

unit.

•

not

expose

batteries

direct

heat,

let

them

become

shorted,

try

take

them

apart.

(Should

battery

leak,

clean

out

the

battery

compartment

the

unit

immediately,

taking

care

avoid

letting

the

battery

fluid

come

into

direct

contact

with

your

skin.)

Keep

batteries

out

the

reach

small

children.

swallowed,

consult

with

physi-

cian

immediately.

•To

replace

the

main

power

supply

batteries

Important

•

Never

remove

the

main

power

supply

and

the

memory

back

batteries

from

the

unit

the

same

time:

*Be

sure

switch

the

unit

off

before

replacing

batteries.

Replacing

batteries

with

power

will

cause

data

memory

deleted.

*Never

replace

the

main

power

supply

battery

compartment

cover

switch

the

calcula-

tor

while

the

main

power

supply

batteries

are

removed

from

the

calculator

not

loaded

correctly.

Doing

can

cause

memory

data

deleted

and

malfunction

the

calcu-

lator.

mishandling

batteries

causes

such

problems,

correctly

load

batteries

and

then

perform

the

RESET

operation

(page

349)

resume

normal

operation.

*Be

sure

replace

all

two

batteries

with

new

ones.

®Switch

the

power

the

calculator

off,

and

slide

the

calculator

into

its

hard

case.

®Remove

screw

®on

the

back

the

calculator,

and

remove

the

main

battery

compartment

cover.

@Remove

the

two

old

batteries.

®Load

new

set

two

batteries,

making

sure

that'

their

Positive

and

negative

ends'are

facing

the

proper

directions.

C)Insert

the

tabs

the

main

battery

compartment

cover

into

the

slots

the

back

the

calculator

and

replace

the

cover.

Secure

place

with

the

screw.

•Power

will

not

switch

you

press

while

the

main

power

supply

battery

compartment

cover

open.

@Remove

the

calculator

from

its

hard

case

and

press

switch

power

on.

•Power

supplied

memory

back-up

batteries

while

the

main

power

supply

batteries

are

re-

moved

retains

memory

contents.

•Do

not

leave

the

unit

without

main

power

sup-

ply

batteries

loaded

for

long

periods.

Doing

can

cause

deletion

data

stored

memory.

screw

-346-

-347-