Casio FX-7400G Plus User Manual

fx-7400G PLUS

E

CASIO COMPUTER CO., LTD.

6-2, Hon-machi 1-chome

Shibuya-ku, Tokyo 151-8543, Japan

SA0212-A Printed in China

User’s Guide

E

fx-7400G PLUS

User’s Guide

RCA500487-1

http://world.casio.com/edu_e/

fx-7400G PLUS (English) Cover Black

MENU

[OPTN]key

STAT

LIST

DRAW

List List_

On DrawOn
Off DrawOff

Dim Dim_

[PRGM]key

[VARS]key

GRPH

Fill Fill(

COM

V-WIN

GPH1 S-Gph1_

Seq Seq(

If If_

Xmin Xmin

GPH2 S-Gph2_

Then Then_

Xmax Xmax

GPH3 S-Gph3_

Min Min(

Else Else_

Xscl Xscl

Scat Scatter

Max Max(

I·End IfEnd

FACT

xy xyLine
Pie Pie
Stck StackedBar

Mean Mean(

Xfct Xfct

Med Median(

For For_

Yfct Yfct

Hist Hist

To _To_

STAT

Box MedBox

Sum Sum_

Step _Step_

X

N-Dis N-Dist

CALC

Next Next

n n

Simp Simp

oo

Int÷

_Int÷_

W·End

While_

Σx Σx

X Linear

Rmdr _Rmdr_

Whle

WhileEnd

Σx2 Σx2

Med Med-Med

STAT

Do Do

xσn xσn

X^2 Quad

x^ x^

Lp·W LpWhile_

y^ y^

CTL

xσn-1 x σn-1

Log Log

Prog Prog_

minX minX

Exp Exp

PROB

Rtrn Return

maxX maxX

Pwr Power

Bar Bar
Line LineG
Both Both

X! !

Brk Break

Y

LIST

nPr P

Stop Stop

pp

List1 List1

nCr C

Σy Σy

List2 List2

Ran# Ran#

JUMP

Σy2 Σy2

List3 List3

NUM

Lbl Lbl_

Σxy Σxy

List4 List4

Abs Abs_

Goto Goto_

yσn yσn

List5 List5

Int Int_

⇒⇒

List6 List6

Frac Frac_

Isz Isz_

yσn-1 y σn-1

MARK

Rnd Rnd

Dsz Dsz_

minY minY

Square

Intg Intg_

? ?

maxY maxY

× Cross

ANGL

^^

GRPH

• Dot
o o

a a

CALC

r r

CLR

b b

1VAR 1-Variable_

g g

Text ClrText

c c

2VAR 2-Variable_

o'''

Grph ClrGraph
List ClrList

r r

X LinearReg_

Pol( Pol(

DISP

Q1 Q1

Med Med-MedLine_

Rec( Rec(

Stat DrawStat

Med Med

X^2 QuadReg_

Grph DrawGraph

Q3 Q3

TABL

Mod Mod

Log LogReg_

Tabl DispTable

PTS

Exp ExpReg_

G-Con DrawTG-Con

x1 x1

Pwr PowerReg_

G-Plt DrawTG-Plt

y1 y1

LIST

REL

I/O

::

x2 x2

SRT-A SortA(

= =

SRT-D SortD(

%
Data

≠≠

y2 y2

GRPH

> >

x3 x3

SEL

DISP

%
Data

Sep.G
O

.

Lap

WIN

Sep.G

NormWin

Norm

O.Lap

< <

y3 y3

On G_SelOn_

>>

GRPH

Off G_SelOff_

<<

Send Send

(

Recv Receive(

Y Y

TYPE

Xt Xt

Y= Y=Type

Yt Yt

Parm ParamType

TABL

Strt F_Start

Y> Y>Type

End F_End

Y< Y<Type

pitch F_pitch

Y> Y >Type
Y< Y <Type

TABL

[SETUP]key

On T_SelOn_
Off T_SelOff_

Deg

Deg

[SHIFT]key

Rad

Rad

ZOOM

' '

Gra

Gra

Fact Factor_

" "

V-WIN

~ ~

V-Win ViewWindow_

* *

Sto StoV-Win

/ /

Rcl RclV-Win

# #

SKTCH

Fix

Fix_

Cls Cls

Sci

Sci_

GRPH

Norm

Norm

Y= Graph_Y=
Parm Graph(X,Y)=(

Auto

S-WindAuto

Y> Graph_Y>

Man

S-WindMan

Y< Graph_Y<

Rang VarRange

Y> Graph_Y >

List1

VarList1

Y< Graph_Y <

List2

VarList2

List3

VarList3

Plot

PLOT

LINE

Plot

P-On PlotOn
P-Off PlotOff
P-Chg PlotChg

[ALPHA]key

List4

VarList4

Line Line
F-Lin F-Line

' '

List5

VarList5

" ”

List6

VarList6

Hztl Horizontal_

Vert Vertical_

~ ~

d/dx d/dx(

Con

G-Connect

Plot

G-Plot

Ymin Ymin
Ymax Ymax
Yscl Yscl
Tmin Tmin
Tmax Tmax
Tpth Tptch

GUIDELINES LAID DOWN BY FCC RULES FOR USE OF THE UNIT IN THE U.S.A. (not appli­cable to other areas).

NOTICE

This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protec­tion against harmful interference in a residential installation. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no guar­antee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one or more of
the following measures:

•Reorient or relocate the receiving antenna.

•Increase the separation between the equipment and receiver.

•Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.

•Consult the dealer or an experienced radio/TV technician for help.

Changes or modifications not expressly approved by the party responsible for compliance could
void the user’s authority to operate the equipment.
Proper connectors must be used for connection to host computer and/or peripherals in order to
meet FCC emission limits.

Connector SB-62 Power Graphic Unit to Power Graphic Unit
Connector FA-123 Power Graphic Unit to PC for IBM/Macintosh Machine

Model Number: fx-7400G PLUS
Trade Name: CASIO COMPUTER CO., LTD.
Responsible party: CASIO, INC.
Address: 570 MT. PLEASANT AVENUE, DOVER, NEW JERSEY 07801
Telephone number: 973-361-5400

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.

IBM is a registered trademark of International Business Machines Corporation.
Macintosh is a registered trademark of Apple Computer, Inc.

Declaration of Conformity

Important!

Please keep your manual and all information handy
for future reference.

FCC WARNING

CASIO ELECTRONICS CO., LTD.
Unit 6, 1000 North Circular Road,
London NW2 7JD, U.K.

Program Mode Command List

BEFORE USING THE CALCULATOR
FOR THE FIRST TIME ONLY...

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, attach the case to the calculator

and then turn the calculator over. Remove the back cover from the unit by pulling with your
finger at the point marked

2. Load the two batteries that come with 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 and turn the calculator front side up, which should automatically
turn on power and perform the memory reset operation.

✩.

i

i

5. Press m.

If the Main Menu shown to the right is not on the display,
pre ss the P but to n on th e b ac k of th e cal culator t o
perform memory reset.

P button

6. Use the cursor keys (

or simply press i to display the contrast adjustment screen.

7. Press d to make the figure on the screen lighter or e to make them darker.

8. After getting the contrast the way you want it, press m to return to the main menu.

ii

ii

f, c, d, e) to select the CONT icon and press w

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 both the main power supply and the memory back up 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.

•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 All Reset operation to clear the memory and
restore normal key operation.

•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 manual and ensure that the

problem is not due to insufficient battery power, programming or operational errors.

iii

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.

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 manual are subject to change without notice.

•No part of this manual may be reproduced in any form without the express written consent of the
manufacturer.

• The options described in Chapter 9 of this manual may not be available in certain geographic areas.
For full details on availability in your area, contact your nearest CASIO dealer or distributor.

iv

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fx-7400G PLUS

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Contents

Chapter 1 Getting Acquainted ...................................................... 1

1. Using the Main Menu ............................................................................ 2

2. Key Table ............................................................................................... 4

3. Key Markings ........................................................................................ 6

4. Selecting Modes ................................................................................... 6

Using the Set Up Screen ............................................................................... 6

Set Up Screen Function Key Menus ............................................................. 7

5. Display ....................................................................................................9

About the Display Screen .............................................................................. 9

About Menu Item Types ................................................................................. 9

Exponential Display ..................................................................................... 10

Special Display Formats .............................................................................. 11

Calculation Execution Screen...................................................................... 11

6. Contrast Adjustment .......................................................................... 11

7. When you keep having problems… .................................................. 12

Get the Calculator Back to its Original Mode Settings ................................ 12

Low Battery Message .................................................................................. 12

Chapter 2 Basic Calculations ..................................................... 13

1. Addition and Subtraction ................................................................... 14

2. Multiplication ...................................................................................... 14

3. Division .................................................................................................14

4. Quotient and Remainder Division ..................................................... 15

5. Mixed Calculations ............................................................................. 16

(1) Mixed Arithmetic Calculation Priority Sequence .................................... 16

(2) Parentheses Calculation Priority Sequence .......................................... 17

(3) Negative Values ..................................................................................... 17

(4) Exponential Expressions ....................................................................... 17

(5) Rounding ............................................................................................... 18

6. Other Useful Calculation Features .................................................... 18

(1) Answer Memory (Ans) ........................................................................... 18

(2) Consecutive Calculations ...................................................................... 18

(3) Replay .................................................................................................... 19

(4) Error Recovery ....................................................................................... 19

(5) Making Corrections ................................................................................ 20

7. Using Variables ................................................................................... 21

vi

Contents

8. Fraction Calculations ......................................................................... 23

(1) Fraction Display and Input ..................................................................... 23

(2) Performing Fraction Calculations ........................................................... 23

(3) Changing the Fraction Simplification Mode ........................................... 25

9. Selecting Value Display Modes.......................................................... 27

10. Scientific Function Calculations ....................................................... 28

(1) Trigonometric Functions ........................................................................ 28

Setting the Default Angle Unit................................................................ 28

Converting Between Angle Units ........................................................... 29

Trigonometric Function Calculations ...................................................... 30

(2) Logarithmic and Exponential Function Calculations .............................. 30

(3) Other Functions ..................................................................................... 31

(4) Coordinate Conversion .......................................................................... 32

(5) Permutation and Combination ............................................................... 33

(6) Other Things to Remember ................................................................... 33

Multiplication Sign .................................................................................. 33

Calculation Priority Sequence ............................................................... 34

Using Multistatements ........................................................................... 34

Stacks .................................................................................................... 35

Errors ..................................................................................................... 36

How to Calculate Memory Usage .......................................................... 36

Memory Status (MEM) ........................................................................... 37

Clearing Memory Contents .................................................................... 37

Va riable Data (VARS) Menu .................................................................. 38

Chapter 3 Differential Calculations ............................................ 43

Chapter 4 Graphing ..................................................................... 47

1. Before Trying to Draw a Graph .......................................................... 48

Entering the Graph Mode ............................................................................ 48

2. View Window (V-Window) Settings.................................................... 48

Initializing and Standardizing the View Window .......................................... 50

View Window Memory ................................................................................. 51

3. Graph Function Operations ............................................................... 52

Specifying the Graph Type .......................................................................... 52

Storing Graph Functions ............................................................................. 52

Editing Functions in Memory ....................................................................... 54

Drawing a Graph ......................................................................................... 54

4. Drawing Graphs Manually.................................................................. 55

vii

Contents

5. Other Graphing Functions ................................................................. 58

Connect Type and Plot Type Graphs (D-Type)............................................. 58

Trace ............................................................................................................ 59

Scroll ........................................................................................................... 60

Overwrite ..................................................................................................... 60

Zoom ........................................................................................................... 62

Sketch Function ........................................................................................... 65

Chapter 5 Table & Graph .............................................................73

1. Storing a Function .............................................................................. 74

2. Deleting a Function ............................................................................ 74

3. Assigning Values to a Variable........................................................... 74

4. Generating a Numeric Table ............................................................... 76

5. Editing a Table ..................................................................................... 77

6. Graphing a Function ........................................................................... 77

7. Assigning Numeric Table Contents to a List .................................... 78

Chapter 6 List Function .............................................................. 79

List Data Linking ..................................................................................... 80

1. List Operations ................................................................................... 81

2. Editing and Rearranging Lists ........................................................... 82

Editing List Values ....................................................................................... 82

Sorting List Values ....................................................................................... 85

3. Manipulating List Data ....................................................................... 87

Accessing the List Data Manipulation Function Menu ................................. 87

4. Arithmetic Calculations Using Lists ................................................. 91

Error Messages ........................................................................................... 91

Inputting a List into a Calculation ................................................................ 91

Recalling List Contents ................................................................................ 93

Graphing a Function Using a List ................................................................ 93

Inputting Scientific Calculations into a List .................................................. 93

Performing Scientific Function Calculations Using a List ............................ 94

Chapter 7 Statistical Graphs and Calculations .........................95

1. Before Performing Statistical Calculations ...................................... 96

2. Statistical Calculation Examples ....................................................... 96

Inputting Data into Lists ............................................................................... 97

viii

Contents

Plotting Data ................................................................................................ 97

Plotting a Scatter Diagram........................................................................... 98

Changing Graph Parameters....................................................................... 98

1. Graph draw/non-draw status (SELECT) .................................................. 98

2. General graph settings (SET) .................................................................. 99

Drawing an

Selecting the Regression Type .................................................................. 105

Displaying Statistical Calculation Results .................................................. 106

Graphing statistical calculation results ...................................................... 106

xy Line Graph ......................................................................... 105

3. Calculating and Graphing Single-Variable Statistical Data ........... 107

Histogram .................................................................................................. 107

Box Graph ................................................................................................. 107

Normal Distribution Curve ......................................................................... 108

Displaying Single-Variable Statistical Results ........................................... 108

Pie Chart ................................................................................................... 109

Stacked Bar Chart ..................................................................................... 110

Bar Graph .................................................................................................. 111

Line Graph ................................................................................................. 112

Bar Graph and Line Graph ........................................................................ 113

4. Calculating and Graphing Paired-Variable Statistical Data........... 114

Linear Regression Graph .......................................................................... 114

Med-Med Graph ........................................................................................ 115

Quadratic Regression Graph..................................................................... 115

Logarithmic Regression Graph .................................................................. 116

Exponential Regression Graph.................................................................. 116

Power Regression Graph .......................................................................... 117

Displaying Paired-Variable Statistical Results ........................................... 118

Copying a Regression Graph Formula to the Graph Mode ....................... 118

Multiple Graphs ......................................................................................... 119

5. Manual Graphing .............................................................................. 120

Setting the Width of a Histogram ............................................................... 120

6. Performing Statistical Calculations................................................. 121

Single-Variable Statistical Calculations ..................................................... 122

Paired-Variable Statistical Calculations ..................................................... 122

Regression Calculation ............................................................................. 123

Estimated Value Calculation (

, )............................................................ 123

ix

Contents

Chapter 8 Programming ........................................................... 125

1. Before Programming ........................................................................ 126

2. Programming Examples................................................................... 127

3. Debugging a Program ...................................................................... 132

4. Calculating the Number of Bytes Used by a Program ................... 132

5. Secret Function ................................................................................ 133

6. Searching for a File........................................................................... 134

7. Editing Program Contents ............................................................... 135

8. Deleting a Program ........................................................................... 138

9. Useful Program Commands............................................................. 139

10. Command Reference ........................................................................ 143

Command Index ........................................................................................ 143

Basic Operation Commands ..................................................................... 144

Program Commands (COM)...................................................................... 145

Program Control Commands (CTL) ........................................................... 149

Jump Commands (JUMP) ......................................................................... 151

Clear Commands (CLR) ............................................................................ 153

Display Commands (DISP)........................................................................ 153

Input / Output Commands (I/O) ................................................................. 154

Conditional Jump Relational Operators (REL) .......................................... 155

11. Text Display ....................................................................................... 156

12. Using Calculator Functions in Programs ....................................... 156

Using Graph Functions in a Program ........................................................ 156

Using Table & Graph Functions in a Program ........................................... 157

Using List Sort Functions in a Program ..................................................... 158

Using Statistical Calculations and Graphs in a Program ........................... 158

Performing Statistical Calculations ............................................................ 160

Chapter 9 Data Communications ............................................. 163

1. Connecting Two Units ...................................................................... 164

2. Connecting the Unit with a Personal Computer ............................. 165

3. Connecting the Unit with a CASIO Label Printer ........................... 166

4. Before Performing a Data Communication Operation ................... 167

5. Performing a Data Transfer Operation ............................................ 168

6. Screen Send Function ...................................................................... 172

7. Data Communications Precautions ................................................ 173

x

Contents

Chapter 10 Program Library ..................................................... 175

1. Prime Factor Analysis ...................................................................... 176

2. Greatest Common Measure ............................................................. 178

t-Test Value ....................................................................................... 180

3.

4. Circle and Tangents.......................................................................... 182

5. Rotating a Figure .............................................................................. 189

Appendix ..................................................................................... 193

Appendix A Resetting the Calculator ................................................... 194

Appendix B Power Supply .................................................................... 196

Replacing Batteries ................................................................................... 196

About the Auto Power Off Function ........................................................... 199

Appendix C Error Message Table ......................................................... 200

Appendix D Input Ranges ..................................................................... 202

Appendix E Specifications .................................................................... 204

xi

Contents

xii

Chapter

Getting Acquainted

— Read This First!

The symbols in this manual indicate the
following messages.

: Important notes

: Notes

: Reference pages

P. 000

1

Chapter 1 Getting Acquainted

1. Using the Main Menu

The main menu appears on the display whenever you turn on the calculator. It con-

tains a number of icons that let you select the mode (work area) for the type of

operation you want to perform. You can also make the Main Menu appear at any time

by pressing m.

The following explains the meaning of each icon.

Icon Meaning

Use this mode for arithmetic calculations and func­tion calculations.

Use this mode to perform single-variable (stand­ard deviation) and paired-variable (regression) sta­tistical calculations, and to draw statistical graphs.

Use this mode for storing and editing numeric
data.

Use this mode to store graph functions and to
draw graphs using the functions.

Use this mode to store functions, to generate a
numeric table of different solutions as the values
assigned to variables in a function change, and
to draw graphs.

Use this mode to store programs in the program
area and to run programs.

Use this mode to transfer memory contents or
back-up data to another unit.

Use this mode to adjust the contrast of the dis­play.

Use this mode to check how much memory is
used and remaining, to delete data from memory,
and to initialize (reset) the calculator.

2

Getting Acquainted Chapter 1

uu

uTo enter a mode

uu

Example To enter the RUN Mode from the Main Menu

1. Press m to display the Main Menu.

2. Use d, e, f, and c to move the highlighting to the RUN icon.

3. Press w to enter the RUN Mode.

•You can also enter a mode without highlighting an icon in the Main Menu by
inputting the number marked in the lower right corner of the icon.

•When you enter a mode, up to four function key menu items appear at the bottom
of the display. Each menu item corresponds to the function key (1, 2, 3,

4) that is below the item. Some function menus have multiple pages. When this
happens, you should press [ to advance to the next menu page.

Example Menus

1234 1234

3

Chapter 1 Getting Acquainted

2. Key Table

Alpha Lock

Normally, once you press a and 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 a
again.

4

Getting Acquainted Chapter 1

Trace Zoom

Page

6

6

45

24 31

23

Page

15

31

31

31

31

23

60

139

38

31

31

31

31

17

V-Window

30

17

Sketch

7

2

16

30

31

17

Page PagePagePagePage

30

82

21

20

82

14

60

14

18

17

30

21

PagePagePagePage

82

14

60

16

5

Chapter 1 Getting Acquainted

3. 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 10

3 B al

The following describes the color coding used for key markings.

x

!l

Color Key Operation

Orange Press ! and then the key to perform the marked

RedPress a and then the key to perform the marked

function.

function.

4. Selecting Modes

kk

k Using the Set Up Screen

kk

The first thing that appears when you enter a mode is the mode’s set up screen,
which shows the current status of settings for the mode. The following procedure
shows how to change a set up.

uu

uTo change a mode set up

uu

1. Select the icon you want and press w enter a mode and display its initial screen.

Here we will enter the RUN Mode.

6

Getting Acquainted Chapter 1

2. Press !Z to display the mode’s set up

screen.

• This set up screen is just one possible exam­ple. Actual set up screen contents will differ
according to the mode you are in and that
mode’s current settings.

3. Use the f and c cursor keys to move the highlighting to the item whose

setting you want to change.

4. Press the function key (1 to 4) that is marked with the setting you want to

make.

5. After you are finished making any changes you want, press Q to return to the

initial screen of the mode.

kk

k Set Up Screen Function Key Menus

kk

This section details the settings you can make using the function keys in the set up
display.

uu

uGraph Function Type (F-Type)

uu

1234

1 (Y=) .......... Re ct ang ular coor di nat e

2 (Parm) ...... Parametric coordinate graphs

[

1 (Y>) .......... y > f( x) inequality graph

2 (Y<) .......... y < f( x) inequality graph

3 (Y≥) .......... y > f (x) inequality graph

4 (Y≤) .......... y < f (x) inequality graph

Press [ to return to the previous menu.

• The setting you make for F-Type determines the variable name that is input when
you press T.

uu

uGraph Draw Type (D-Type)

uu

1 (Con) ........ Connection of points plot-

2 (Plot) ......... Plotting of points on graph

graphs

ted on graph.

without connection.

1234[

1234[

1234

7

Chapter 1 Getting Acquainted

uu

uAngle unit (Angle)

uu

1 (Deg) ........ Sp ec if ie s degr ees as

2 (Rad) ........ Sp ec if ie s r ad ia ns as

3 (Gra) ......... Specifies grads as default.

uu

uStatistical Graph View Window Setting (S-Wind)

uu

P. 120

P. 120

P.75

1 (Auto)........ Automat ic setting of view

2 (Man) ........ Manu al set ti ng of vi ew

uu

uGraph Function Display (G-Func)

uu

1 (On) .......... Turns on display of function

2 (Off) .......... Turns off display of function

uu

uSimultaneous Graph Mode (Simul-G)

uu

1 (On) .......... Turn s on sim ul taneous

2 (Off) .......... Simultaneous graphing off

uu

uTable & Graph Generation Settings (Var)

uu

1 (RANG) .... Table generation and graph

2 (List1)

3 (List2)

4 (List3)

default.

default.

window values for statisti­cal graph drawing.

window values for statisti­cal graph drawing.

during graph drawing and
trace.

during graph drawing and
trace.

graphing of all functions in
memory.

(g ra ph s dr aw n on e- by ­one).

drawing using numeric ta­ble range.

Table generation and graph

....

drawing using list data.

1234

1234

1234

1234

1234[

8

Getting Acquainted Chapter 1

[

1 (List4)

2 (List5)

3 (List6)

Press [ to return to the previous menu.

Other menus for set up (Display, Simplfy, Frac) are described in each applicable
section of this manual as they come up.

Table generation and graph

....

drawing using list data.

1234 [

Abbreviations

STAT ............... Statistics

PRGM ............. Program

CONT.............. Contrast

MEM ............... Memory

5. Display

kk

k About the Display Screen

kk

This calculator uses two types of display: a text display and a graphic display. The
text display can show 13 columns and six lines of characters, with the bottom line
used for the function key menu, while the graph display uses an area that measures
79 (W) × 47 (H) dots.

Text Display Graph Display

kk

k About Menu Item Types

kk

This calculator uses certain conventions to indicate the type of result you can expect
when you press a function key.

• Next Menu

Example:

Selecting displays a menu of list functions.

• Command Input

Example:

Selecting inputs the “List” command.

9

Chapter 1 Getting Acquainted

• Direct Command Execution

Example:

Selecting executes the DRAW command.

kk

k Exponential Display

kk

The calculator normally displays values up to 10 digits long. Values that exceed this
limit are automatically converted to and displayed in exponential format. You can
specify one of two different ranges for automatic changeover to exponential display.

–2

Norm 1 ............ 10

Norm 2 ............ 10–9 (0.000000001) > |x|, |x| > 10

uu

uTo change the exponential display range

uu

1. Press !Z to display the Set Up Screen.

2. Use f and c to move the highlighting to “Display”.

3. Press 3 (Norm).

The exponential display range switches between Norm 1 and Norm 2 each time you
perform the above operation. There is no display indicator to show you which expo­nential display range is currently in effect, but you can always check it by seeing what
results the following calculation produces.

(0.01) > |x|, |x| > 10

10

10

Ab/caaw

(Norm 1)

(Norm 2)

All of the examples in this manual show calculation results using Norm 1.

For full details about the “Display”, see “Selecting Value Display Modes”.

P.27

uu

uHow to interpret exponential format

uu

+12

1.2

indicates that the result is equivalent to 1.2 × 1012. This means that you should

move the decimal point in 1.2 twelve places to the right, because the exponent is
positive. This results in the value 1,200,000,000,000.

–03

1.2

indicates that the result is equivalent to 1.2 × 10–3. This means that you should

move the decimal point in 1.2 three places to the left, because the exponent is nega­tive. This results in the value 0.0012.

10

Getting Acquainted Chapter 1

kk

k Special Display Formats

kk

This calculator uses special display formats to indicate fractions, and sexagesimal
values.

uu

uFractions

uu

.......... Indicates: 456

uu

uSexagesimal Values

uu

.......... Indicates: 12° 34’ 56.78"

•In addition to the above, this calculator also uses other indicators or symbols,
which are described in each applicable section of this manual as they come up.

kk

k Calculation Execution Screen

kk

Whenever the calculator is busy drawing a graph or executing a long, complex calcu­lation or program, a black box (k) flashes in the upper right corner of the display.
This black box tells you that the calculator is performing an internal operation.

–––

12
23

6. Contrast Adjustment

Adjust the contrast whenever objects on the display appear dim or difficult to see.

uu

uTo display the contrast adjustment screen

uu

Highlight the CONT icon in the Main Menu and
then press w.

Press d to make the figures on the screen lighter or e to make them darker.

After getting the contrast the way you want it, press m to return to the main menu.

11

Chapter 1 Getting Acquainted

7. When you keep having problems…

If you keep having problems when you are trying to perform operations, try the fol­lowing before assuming that there is something wrong with the calculator.

kk

k Get the Calculator Back to its Original Mode Settings

kk

1. In the Main Menu, select the RUN icon and press w.

2. Press ! Z to display the Set Up Screen.

3. Highlight “Angle” and press 2 (Rad).

4. Highlight “Display” and press 3 (Norm) to select the exponential display range

P.6

P. 196

(Norm 1 or Norm 2) that you want to use.

5. Now enter the correct mode and perform your calculation again, monitoring the
results on the display.

kk

k Low Battery Message

kk

The low battery message appears while the main battery power is below a certain
level whenever you press o to turn power on or m to display the Main Menu.

o or m

If you continue using the calculator without replacing batteries, power will automati­cally turn off to protect memory contents. Once this happens, you will not be able to
turn power back on, and there is the danger that memory contents will be corrupted
or lost entirely.

About 3 seconds later

↓

12

Chapter

Basic Calculations

In the RUN Mode you can perform arithmetic calculations (addi­tion, subtraction, multiplication, division) as well as calculations in­volving scientific functions.

1. Addition and Subtraction

2. Multiplication

3. Division

4. Quotient and Remainder Division

5. Mixed Calculations

6. Other Useful Calculation Features

7. Using Variables

8. Fraction Calculations

9. Selecting Value Display Modes

10. Scientific Function Calculations

2

Chapter 2 Basic Calculations

1. Addition and Subtraction

Example 6.72 + 9.08

g.hc+j.aiw

You can input the operation just as it is written. This capability is called “true alge­braic logic.”

Be sure to press A to clear the display before starting a new calculation.

2. Multiplication

Example 3.71 × 4.27

Ad.hb*

e.chw

• The range of this calculator is –9.99999999 × 10

3. Division

Example 64 ÷ 4

Age/ew

99

to +9.99999999 × 1099.

P.17

Parentheses also come in handy when performing division. For full details on using
parentheses, see “Parentheses Calculation Priority Sequence”.

14

Basic Calculations Chapter 2

uu

uTo use parentheses in a calculation

uu

Example 1

You should input this calculation as: (2 × 3 + 4) ÷ 5

2 × 3 + 4

–––––––

5

A(c*d+e)/fw

Example 2 –––––

You can input this calculation as: 6 ÷ (4 × 5) or 6 ÷ 4 ÷ 5.

6

4 × 5

Ag/(e*f)w

Ag/e/fw

4. Quotient and Remainder Division

This calculator can produce either the quotient or the quotient and remainder of
division operations involving two integers. Use K to display the Option Menu for
the function key menu you need to perform quotient and remainder division.

Operation

Use the RUN Mode for quotient and remainder division.

Quotient Division ...... <integer>K2(CALC)2(Int÷)<integer>w

Reminder Division .... <integer>K2(CALC)3(Rmdr)<integer>w

uu

uTo perform quotient division

uu

Example To display the quotient produced by 61 ÷ 7

AgbK2(CALC)

1 2 34

15

Chapter 2 Basic Calculations

2(Int÷)hw

•Remember that you can use only integers in quotient division operations. You
cannot use expressions such as
part.

uu

uTo perform remainder division

uu

Example To display the remainder produced by 857 ÷ 48

ifh3(Rmdr)eiw

Press Q to clear the Option Menu after you finish your remainder and quotient
calculations.

•Remember that you can use only integers in remainder division operations. You
cannot use expressions such as

P.91

part.

•Quotient and remainder division can also be used with lists to divide a multiple
integers by each other in a single operation.

5. Mixed Calculations

(1) Mixed Arithmetic Calculation Priority Sequence

For mixed arithmetic calculations, the calculator automatically performs multiplica­tion and division before addition and subtraction.

Example 1 3 + 5 × 6

Ad+f*gw

1 2 34

2 or sin60 because their results have a decimal

123 4

2 or sin60 because their results have a decimal

Example 2 7 × 8 – 4 × 5

Ah*i-e*fw

16