Casio 6 User Manual Fx9750g Ch01

Chapter 1 Basic Operation fx9750g_ch01_EN fx-9750G | Calculators | Manuals | CASIO

User Manual: Casio User manual Casio fx-9750G Calculator User Manuals and Instruction Guides

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Basic Operation

1-1 Before Starting Calculations...

1-2 Memory

1-3 Option (OPTN) Menu

1-4 Variable Data (VARS) Menu

1-5 Program (PRGM) Menu

Chapter

1-1 Before Starting Calculations...

Before performing a calculation for the first time, you should use the Set Up Screen

to specify the angle unit and display format.

kSetting the Angle Unit (Angle)

1. Display the Set Up Screen and use the f and c keys to highlight “Angle”.

1 (Deg) ........ Specifies degrees as

default.

2 (Rad) ........ Specifies radians as

default.

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

2. Press the function key that corresponds to the angle unit you want to use.

• The relationship between degrees, grads, and radians is shown below.

360° = 2π radians = 400 grads

90° = π/2 radians = 100 grads

kSetting the Display Format (Display)

1. Display the Set Up Screen and use the f and c keys to highlight “Display”.

1 (Fix) .......... Displays screen for specifi-

cation of number of decimal

places.

2 (Sci) ......... Displays screen for specifi-

cation of number of signifi-

cant digits.

3 (Norm) ..... Switches exponential format display range.

4 (Eng) ........ Displays calculation results using engineering notation.

2. Press the function key that corresponds to the display format you want to use.

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u To specify the number of decimal places (Fix)

Example To specify two decimal places.

1 (Fix)

3 (2)

Press the function key that corresponds to the number

of decimal places you want to specify (

= 0 ~ 9).

• Displayed values are rounded off to the number of decimal places you specify.

u To specify the number of significant digits (Sci)

Example To specify three significant digits.

2 (Sci)

4 (3)

Press the function key that corresponds to the number

of significant digits you want to specify (

= 0 ~ 9).

• Displayed values are rounded off to the number of significant digits you specify.

• Specifying 0 makes the number of significant digits 10.

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Before Starting Calculations... 1 - 1

u To specify the exponential display range (Norm 1/Norm 2)

Press 3 (Norm) to switch between Norm 1 and Norm 2.

Norm 1: 10–2 (0.01)>|x|, |x| >1010

Norm 2: 10–9 (0.000000001)>|x|, |x| >1010

u To specify the engineering notation display (Eng)

Press 4 (Eng) to switch between engineering notation and standard notation.

The indicator “/E” is on the display while engineering notation is in effect.

The following are the 11 engineering notation symbols used by this calculator.

Symbol Meaning Unit

E Exa 1018

P Peta 1015

T Tera 1012

G Giga 109

M Mega 106

k kilo 103

m milli 10–3

µmicro 10–6

n nano 10–9

p pico 10–12

f femto 10–15

• The engineering symbol that makes the mantissa a value from 1 to 1000 is auto-

matically selected by the calculator when engineering notation is in effect.

1 - 1 Before Starting Calculations...

kInputting Calculations

When you are ready to input a calculation, first press Ato clear the display. Next,

input your calculation formulas exactly as they are written, from left to right, and

press w to obtain the result.

Example 1 2 + 3 – 4 + 10 =

Ac+d-e+baw

Example 2 2(5 + 4) ÷ (23 × 5) =

Ac(f+e)/

(cd*f)w

kCalculation Priority Sequence

This calculator employs true algebraic logic to calculate the parts of a formula in the

following order:

1Coordinate transformation

Pol (x, y), Rec (r,

)

Differentials, quadratic differentials, integrations, Σ calculations

d/dx, d2/dx2, ∫dx, Σ, Mat, Solve, FMin, FMax, List→Mat, Fill, Seq, SortA, SortD,

Min, Max, Median, Mean, Augment, Mat→List, List

2Type A functions

With these functions, the value is entered and then the function key is pressed.

x2, x–1, x !, ° ’ ”, ENG symbols

3Power/root

^(xy), x

4Fractions

ab/c

5Abbreviated multiplication format in front of π, memory name, or variable name.

2π, 5A, X min, F Start, etc.

6Type B functions

With these functions, the function key is pressed and then the value is entered.

, 3, log, In, ex, 10x, sin, cos, tan, sin–1, cos–1, tan–1, sinh, cosh, tanh, sinh–1,

cosh–1, tanh–1, (–), parenthesis, d, h, b, o, Neg, Not, Det, Trn, Dim, Identity, Sum,

Prod, Cuml, Percent

7Abbreviated multiplication format in front of Type B functions

2, A log2, etc.3

8Permutation, combination

nPr, nCr

Before Starting Calculations... 1 - 1

9× , ÷

0+, –

!Relational operator

=, G, >, <, ≥, ≤

@And, and

#Or, or, xor, xnor

• When functions with the same priority are used in series, execution is performed

from right to left.

exIn → ex{In( )}120 120

Otherwise, execution is from left to right.

• Anything contained within parentheses receives highest priority.

Example 2 + 3 × (log sin2π2 + 6.8) = 22.07101691 (angle unit = Rad)

kMultiplication Operations without a Multiplication Sign

You can omit the multiplication sign (×) in any of the following operations.

• Before the Type B functions

Example 2sin30, 10log1.2, 2 , 2Pol(5, 12), etc.

• Before constants, variable names, memory

Example 2π, 2AB, 3Ans, 3Y1, etc.

• Before an open parenthesis

Example 3(5 + 6), (A + 1)(B – 1), etc.

1 - 1 Before Starting Calculations...

kStacks

The unit employs memory blocks, called

stacks

, for storage of low priority values and

commands. There is a 10-level

numeric value stack

, a 26-level

command stack

, and

a 10-level

program subroutine stack

. If you execute a formula so complex it exceeds

the amount of stack space available, an error message appears on the display (Stk

ERROR during calculations or Ne ERROR during execution of a program subrou-

tine).

Example

(

...

Numeric Value Stack Command Stack

• Calculations are performed according to the priority sequence. Once a calcula-

tion is executed, it is cleared from the stack.

• Storing a complex number takes up two numeric value stack levels.

• Storing a two-byte function takes up two command stack levels.

kInput, Output and Operation Limitations

The allowable range for both input and output values is 10 digits for the mantissa and

2 digits for the exponent. Internally, however, the unit performs calculations using 15

digits for the mantissa and 2 digits for the exponent.

Example 3 × 105 ÷ 7 – 42857 =

AdEf/hw

dEf/h-

ecifhw

Before Starting Calculations... 1 - 1

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kOverflow and Errors

Exceeding a specified input or calculation range, or attempting an illegal input causes

an error message to appear on the display. Further operation of the calculator is

impossible while an error message is displayed. The following events cause an error

message to appear on the display.

• When any result, whether intermediate or final, or any value in memory exceeds

±9.999999999 × 1099 (Ma ERROR).

• When an attempt is made to perform a function calculation that exceeds the input

range (Ma ERROR).

• When an illegal operation is attempted during statistical calculations (Ma ER-

ROR). For example, attempting to obtain 1VAR without data input.

• When the capacity of the numeric value stack or command stack is exceeded (Stk

ERROR). For example, entering 25 successive ( followed by 2 +3 *4 w.

• When an attempt is made to perform a calculation using an illegal formula (Syn

ERROR). For example, 5 ** 3 w.

• When you try to perform a calculation that causes memory capacity to be exceeded

(Mem ERROR).

• When you use a command that requires an argument, without providing a valid

argument (Arg ERROR).

• When an attempt is made to use an illegal dimension during matrix calculations

(Dim ERROR).

• Other errors can occur during program execution. Most of the calculator’s keys

are inoperative while an error message is displayed. You can resume operation

using one of the two following procedures.

• Press the A key to clear the error and return to normal operation.

• Press d or e to display the error.

kMemory Capacity

Each time you press a key, either one byte or two bytes is used. Some of the functions

that require one byte are: b, c, d, sin, cos, tan, log, In, , and π. Some of the

functions that take up two bytes are d/dx(, Mat, Xmin, If, For, Return, DrawGraph,

SortA(, PxIOn, Sum, and an+1.

When the number of bytes remaining drops to five or below, the cursor automatically

changes from “ _ ” to “ v ”. If you still need to input more, you should divide your

calculation into two or more parts.

• As you input numeric values or commands, they appear flush left on the dis-

play. Calculation results, on the other hand, are displayed flush right.

1 - 1 Before Starting Calculations...

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kGraphic Display and Text Display

The unit uses both a graphic display and a text display. The graphic display is used

for graphics, while the text display is used for calculations and instructions. The con-

tents of each type of display are stored in independent memory areas.

uTo switch between the graphic display and text display

Press !6(G↔T). You should also note that the key operations used to clear

each type of display are different.

uTo clear the graphic display

Press !4(Sketch) 1(Cls) w.

uTo clear the text display

Press A.

kEditing Calculations

Use the d and e keys to move the cursor to the position you want to change, and

then perform one of the operations described below. After you edit the calculation,

you can execute it by pressing w, or use e to move to the end of the calculation

and input more.

uTo change a step

Example To change cos60 to sin60

cga

ddd

uTo delete a step

Example To change 369 × × 2 to 369 × 2

dgj**c

ddD

Before Starting Calculations... 1 - 1

uTo insert a step

Example To change 2.362 to sin2.362

c.dgx

ddddd

• When you press ![a space is indicated by the symbol ‘‘t’’. The next func-

tion or value you input is inserted at the location of ‘‘t’’. To abort the insert opera-

tion without inputting anything, move the cursor, press ![again, or press

d, e or w.

1 - 1 Before Starting Calculations...

1-2 Memory

kVariables

This calculator comes with 28 variables as standard. You can use variables to store

values to be used inside of calculations. Variables are identified by single-letter names,

which are made up of the 26 letters of the alphabet, plus r and

. The maximum size

of values that you can assign to variables is 15 digits for the mantissa and 2 digits for

the exponent. Variable contents are retained even when you switch power off.

uTo assign a value to a variable

Example To assign 123 to variable A

AbcdaaAw

Example To add 456 to variable A and store the result in variable B

AaA+efgaaBw

uTo display the contents of a variable

Example To display the contents of variable A

AaAw

uTo clear a variable

Example To clear variable A

AaaaAw

• To clear all variables, select “Memory Usage” from the MEM Mode.

uTo assign the same value to more than one variable

[value]a[first variable name]a3(~)

[last variable name]w

• You cannot use “r” or “

” as a variable name in the above operation.

Example To assign a value of 10 to variables A through F

Abaa!aA

3(~)Fw

kFunction Memory

Function memory is convenient for temporary storage of often-used expressions.

For longer term storage, we recommend that you use the GRAPH Mode for expres-

sions and the PRGM Mode for programs.

uTo display the Function Memory Menu

K6(g)6(g)3(FMEM)

1(STO) ........ Stores functions

2(RCL) ........ Recalls functions

3(fn) ............ Specifies input as a function.

4(SEE) ........ Displays a list of stored functions

uTo store a function

Example To store the function (A+B) (A–B) as function memory number 1.

K6(g)6(g)3(FMEM)A

(aA+aB)

(aA-aB)

1(STO)

1(f1)

• If the function memory number you assign a function to already contains a func-

tion, the previous function is replaced with the new one.

1 - 2 Memory

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uTo recall a function

Example To recall the contents of function memory number 1

K6(g)6(g)3(FMEM)A

2(RCL)

1(f1)

• The recalled function appears at the current location of the cursor on the display.

uTo display a list of available functions

K6(g)6(g)3(FMEM)

4(SEE)

uTo delete a function

Example To delete the contents of function memory number 1

K6(g)6(g)3(FMEM)A

1(STO)

1(f1)

• Executing the store operation while the display is blank deletes the function in the

function memory you specify.

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Memory 1 - 2

uTo use stored functions

Once you store a function in memory, you can recall it and use it for a calculation.

This feature is very useful for quick and easy input of functions when programming

or graphing.

Example To store x3 + 1, x2 + x into function memory, and then graph:

y = x3 + x2 + x + 1

Use the following View Window parameters.

Xmin = –4 Ymin = –10

Xmax = 4 Ymax = 10

Xscale = 1 Yscale = 1

!Zc1(Y=)J

K6(g)6(g)3(FMEM)

AvMd+b

1(STO)1(f1)(stores (x3 + 1))

Avx+v

1(STO)2(f2)(stores (x2 + x))

A!4(Sketch)1(Cls)w

!4(Sketch)5(GRPH)1(Y=)

K6(g)6(g)3(FMEM)

3(fn)1(f1)+2(f2)w

• For full details about graphing, see “8. Graphing”.

kMemory Status (MEM)

You can check how much memory is used for storage for each type of data. You can

also see how many bytes of memory are still available for storage.

uTo check the memory status

1. In the Main Menu, select the MEM icon and

press w.

2. Press w again to display the memory status

screen.

1 - 2 Memory

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Number of bytes still free

3. Use f and c to move the highlighting and view the amount of memory (in

bytes) used for storage of each type of data.

The following table shows all of the data types that appear on the memory status

screen.

Data Type Meaning

Program Program data

Statistics Statistical calculations and graphs

Matrix Matrix memory data

List File List data

Y= Graph functions

Draw Memory Graph drawing conditions (View Window,

enlargement/reduction factor, graph

screen)

Graph Memory Graph memory data

View Window View Window memory data

Picture Graph screen data

Dynamic Graph Dynamic Graph data

Table Function Table & Graph data

Recursion Recursion Table & Graph data

Equation Equation calculation data

Alpha Memory Alpha memory data

Function Mem Function memory data

Memory 1 - 2

kClearing Memory Contents

You have a choice of two differenct procedures that you can use to clear memory

contents.

• Clearing specific data within a selected data type

• Clearing all data within a specific data type

uTo clear specific data within a selected data type

1. In the memory status screen, use f and c to move the highlighting to the

data type you want to clear.

2. Press 1 (DEL). If you selected a data type that contains multiple memory ar-

eas, a function menu like the one shown below appears to let you specify which

memory you want to clear.

3. Press the function key that corresponds to the data you want to clear.

4. Press 1 (YES) to clear the data or 6 (NO) to abort the operation without

clearing anything.

uTo clear all data within a specific data type

1. In the memory status screen, use f and c to move the highlighting to the

data type whose data you want to clear.

2. Press 1 (DEL). The following confirmation menu appears if you selected a data

type in which all data can be cleared by a single operation.

3. Press 1 (YES) to clear the data or 6 (NO) to abort the operation without

clearing anything.

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* This menu appears when you

select List File.

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1 - 2 Memory

1-3 Option (OPTN) Menu

The option menu gives you access to scientific functions and features that are not marked on

the calculator’s keyboard. The contents of the option menu differ according to the mode you are

in when you press the K key.

uOption Menu in the RUN and PRGM Modes

1 (LIST) ....... List function menu

2 (MAT) ....... Matrix operation menu

3 (CPLX) ..... Complex number calculation menu

4 (CALC) ..... Functional analysis menu

5 (STAT) ...... Paired-variable statistical estimated value menu

6 (g) ........... Next menu

6(g)

2 (HYP) ....... Hyperbolic calculation menu

3 (PROB) .... Probability/distribution calculation menu

4 (NUM) ...... Numeric calculation menu

5 (ANGL) ..... Menu for angle/coordinate conversion, sexagesimal input/con-

version

6 (g) ........... Next menu

6(g)

1 (ESYM) .... Engineering symbol menu

2 (PICT) ...... Graph save/recall menu

3 (FMEM) .... Function memory menu

4 (LOGIC) ... Logic operator menu

6 (g) ........... Previous menu

Note that the K key is disabled while binary, octal, decimal, or hexadecimal is set

as the default number system.

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uOption Menu during numeric data input in the STAT, MAT, LIST,

TABLE, RECUR and EQUA Modes

6(g)

The meanings of the option menu items are described in the sections that cover

each mode.

uOption Menu during formula input in the GRAPH, DYNA, TABLE

and RECUR Modes

6(g)

The meanings of the option menu items are described in the sections that cover

each mode.

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1 - 3 Option (OPTN) Menu

1-4 Variable Data (VARS) Menu

You can use the variable data menu to recall the data listed below.

• View Window values

• Enlargement/reduction factor

• Single-variable/paired-variable statistical data

• Graph functions

• Dynamic Graph set up data

• Table & Graph table range and table contents

• Recursion formula, table range, and table contents

• Equation coefficients and solutions

The variable data menu does not appear if you press J while binary, octal, deci-

mal, or hexadecimal is set as the default number system.

To recall variable data, press J to display the variable data menu.

1 (V-WIN) .... View Window values

2 (FACT) ..... x and y-axis enlargement/reduction factor

3 (STAT) ...... Single/paired-variable statistical data

4 (GRPH) .... Graph functions stored in the GRAPH Mode

5 (DYNA) .... Dynamic Graph set up data

6 (g) ........... Next menu

6 (g)

1 (TABL) ...... Table & Graph function table range and table contents

2 (RECR) .... Recursion formula table range and table contents

3 (EQUA) .... Solutions and coefficients of linear equations with two through

six unknowns, quadratic equations, and cubic equations

6 (g) ........... Previous menu

• Note that the EQUA item appears for function key 3 only when you access the

variable data menu from the RUN or PRGM Mode.

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uTo recall View Window values

Pressing 1 (V-WIN) while the variable data menu is on the screen displays a View

Window value menu.

1 (V-WIN)

1 (X) ............ x-axis menu

2 (Y) ............ y-axis menu

3 (T,

) .......... T,

4 (R-X) ........ x-axis menu for Dual Graph right hand screen

5 (R-Y) ........ y-axis menu for Dual Graph right hand screen

6 (R-T,

) ...... T,

menu for Dual Graph right hand screen

The following menu appears whenever you press 1 (X), 2 (Y), 4 (R-X), or 5

(R-Y) while the View Window value menu is on the display.

1 (min)......... Minimum

2 (max)........ Maximum

3 (scal) ........ Scale

The following menu appears whenever you press 3 (T,

) or 6 (R-T,

) while the

view window value menu is on the display.

1 (min)......... Minimum

2 (max)........ Maximum

3 (ptch)........ Pitch

uTo recall enlargement and reduction factors

Pressing 2 (FACT) while the variable data menu is on the screen displays an

enlargement/reduction factor menu.

2(FACT)

1 (Xfct) ........ x-axis enlargement/reduction factor

2 (Yfct) ........ y-axis enlargement/reduction factor

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1 - 4 Variable Data (VARS) Menu

uTo recall single/paired-variable statistical data

Pressing 3 (STAT) while the variable data menu is on the screen displays a statis-

tical data menu.

3(STAT)

1 (X) ............ Single/paired-variable

x-data menu

2 (Y) ............ Paired-variable y-data menu

3 (GRPH) .... Statistical graph data menu

4 (PTS) ....... Summary point data menu

The following menu appears whenever you press 1 (X), while the statistical data

menu is on the display.

1 (X)

1 (n) ............ Number of data

2 (o)............. Mean of x data

3 (Σx) .......... Sum of x data

4 (Σx2) ......... x data sum of squares

5 (xσn) ......... x data population standard deviation

6 (g) ........... Next menu

6 (g)

1 (xσn-1) ....... x data sample standard

deviation

2 (minX) ...... x data minimum value

3 (maxX) ..... x data maximum value

6 (g) ........... Previous menu

The following menu appears whenever you press 2 (Y) while the statistical data

menu is on the display.

2 (Y)

1 (p)............. Mean of y data

2 (Σy) .......... Sum of y data

3 (Σy2) ......... y data sum of squares

4 (Σxy) ......... x data and y data sum of products

5 (yσn) ......... y data population standard deviation

6 (g) ........... Next menu

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Variable Data (VARS) Menu 1 - 4

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6 (g)

1 (yσn-1) ....... y data sample standard

deviation

2 (minY) ...... y data minimum value

3 (maxY) ..... y data maximum value

6 (g) ........... Previous menu

The following menu appears whenever you press 3 (GRPH) while the statistical

data menu is on the display.

3 (GRPH)

1(a)-5(e) .. Statistical graph regression

coefficient and multinomial

coefficients

6 (g) ........... Next menu

6 (g)

1 (r) ............. Statistical graph correlation

coefficient

2 (Q1).......... First quartile

3 (Med) ....... Median of input data

4 (Q3).......... Third quartile

5 (Mod) ....... Mode of input data

6 (g) ........... Previous menu

The following menu appears whenever you press 4 (PTS) while the statistical data

menu is on the display.

4 (PTS)

1(x1) ~ 6(y3).... Coordinates of sum-

mary points

uTo recall graph functions

Pressing 4 (GRPH) while the variable data menu is on the screen displays a graph

function menu.

4 (GRPH)

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1 - 4 Variable Data (VARS) Menu

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Input a storage area number and then press one of the following function keys to

recall the corresponding graph function stored in that storage area.

1 (Y) ............ Rectangular coordinate or inequality function

2 (r) ............. Polar coordinate function

3 (Xt) ........... Parametric graph function Xt

4 (Yt) ........... Parametric graph function Yt

5 (X) ............ X=constant graph function

Example To recall and draw the graph for the rectangular coordinate

function y = 2 x2 – 3, which is stored in storage area Y2

Use the following View Window parameters to draw the graph.

Xmin = –5 Ymin = –5

Xmax = 5 Ymax = 5

Xscale = 1 Yscale = 1

!4(Sketch)5(GRPH)1(Y=)

J4(GRPH)1(Y)cw

uTo recall Dynamic Graph set up data

Pressing 5 (DYNA) while the variable data menu is on the screen displays a Dy-

namic Graph set up menu.

5 (DYNA)

1 (Strt) ......... Coefficient range start value

2 (End) ........ Coefficient range end value

3 (Pitch) ...... Coefficient value increment

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Variable Data (VARS) Menu 1 - 4

uTo recall Table & Graph table range and table content data

Pressing 6 (g) and then 1 (TABL) while the variable data menu is on the screen

displays a Table & Graph data menu.

6 (g)1 (TABL)

1 (Strt) ......... Table range start value (F Start command)

2 (End) ........ Table range end value (F End command)

3 (Pitch) ...... Table value increment (F pitch command)

4 (Reslt) ...... Matrix of table contents (F Result command)

• The Reslt item appears for function key 4 only when the above menu is dis-

played in the RUN or PRGM Mode.

Example To recall the contents of the numeric table for the function

y = 3x2 – 2, while the table range is Start=0 and End=6, and pitch=1

4(Reslt)

uTo recall recursion formula, table range and table content data

Pressing 6 (g) and then 2 (RECR) while the variable data menu is on the screen

displays a recursion data menu.

6 (g)2 (RECR)

1 (FORM) .... Recursion formula data menu

2 (RANG) .... Table range data menu

3 (Reslt) ...... Matrix of table contents (R Result command)

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1 - 4 Variable Data (VARS) Menu

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To recall recursion formula data

The following menu appears whenever you press 1 (FORM) while the recursion

data menu is on the display.

1 (FORM)

1 (an) ........... an expression

2 (an+1) ......... an+1 expression

3 (an+2) ......... an+2 expression

4 (bn) ........... bn expression

5 (bn+1) ......... bn+1 expression

6 (bn+2) ......... bn+2 expression

To recall table range data

The following menu appears whenever you press 2 (RANG) while the recursion

data menu is on the display.

2 (RANG)

1 (Strt) ......... Table range start value

(F Start command)

2 (End) ........ Table range end value

(F End command)

3 (a0) ........... Zero term a0 value

4 (a1) ........... First term a1 value

5 (a2) ........... Second term a2 value

6 (g) ........... Next menu

6 (g)

1 (b0) ........... Zero term b0 value

2 (b1) ........... First term b1 value

3 (b2) ........... Second term b2 value

4 (anSt) ........ Origin of an recursion formula convergence/divergence graph

(WEB graph)

5 (bnSt) ........ Origin of bn recursion formula convergence/divergence graph

(WEB graph)

6 (g) ........... Previous menu

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Variable Data (VARS) Menu 1 - 4

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To recall matrix of table contents

Whenever you press 3 (Reslt) while the recursion data menu is on the display, the

recursion formula numeric table appears on the screen in matrix format.

• This operation is available only from the RUN or PRGM Mode.

Example To recall the contents of the numeric table for recursion formula

an = 2n + 1, while the table range is Start=1 and End=6

3(Reslt)

• The table contents recalled by the above operation are stored automatically in

Matrix Answer Memory (MatAns).

• An error (Dim ERROR) occurs if you perform the above operation when there is

no function or recursion formula numeric table in memory.

uTo recall equation coefficients and solutions

Pressing 6 (g) and then 3 (EQUA) while the variable data menu is on the screen

displays an equation data menu.

6(g)3(EQUA)

1 (S-Rlt) ...... Matrix of solutions for linear equations with two through six

unknowns

2 (S-Cof) ..... Matrix of coefficients for linear equations with two through six

unknowns

3 (P-Rlt) ...... Matrix of solutions for a quadratic or cubic equation

4 (P-Cof) ..... Matrix of coefficients for a quadratic or cubic equation

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1 - 4 Variable Data (VARS) Menu

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Example 1 To recall the solutions for the following linear equations with two

unknowns

2x + 3y=8

3x + 5y=14

1(S-Rlt)

Example 2 To recall the coefficients for the following linear equations with

three unknowns

4x+y–2z=–1

x+6y+3z=1

–5x+4y+z=–7

2(S-Cof)

Example 3 To recall the solutions for the following quadratic equation

2x2 + x – 10 = 0

3(P-Rlt)

Example 4 To recall the coefficients for the following quadratic equation

2x2 + x – 10 = 0

4(P-Cof)

Variable Data (VARS) Menu 1 - 4

• The coefficients and solutions recalled by the above operation are stored auto-

matically in Matrix Answer Memory (MatAns).

• When the solutions for a linear equation with 2 through 6 unknowns contain com-

plex numbers, only the real number parts are stored in Matrix Answer Memory

(MatAns).

• Coefficient and solution memory data for a linear equation with 2 though 6 un-

knowns cannot be recalled at the same time.

• The following conditions cause an error (Mem ERROR) to be generated.

When there are no coefficients input for the equation

When there are no solutions obtained for the equation

1 - 4 Variable Data (VARS) Menu

1-5 Program (PRGM) Menu

To display the program menu, first enter the RUN or PRGM Mode from the Main

Menu, and then press ! W.

1 (COM) ...... Program command menu

2 (CTL) ........ Program control command

3 (JUMP)..... Jump command menu

4 (?) ............ Input command

5 (^) ........... Output command

6 (g) ........... Next menu

6 (g)

1 (CLR) ....... Clear command menu

2 (DISP) ...... Display command menu

3 (REL) ....... Conditional jump relational operator menu

4 (I/O).......... Input/output control command menu

5 (:) ............. Multistatement connector

6 (g) ........... Previous menu

The following function key menu appears if you press ! W in the RUN Mode or

the PRGM Mode while binary, octal, decimal, or hexadecimal is set as the default

number system.

The functions assigned to the function keys are the same as those in the Comp

Mode.

For details on the commands that are available in the various menus you can access

from the program menu, see “19. Programming”.

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Casio 6 User Manual Fx9750g Ch01

Chapter 1 Basic Operation fx9750g_ch01_EN fx-9750G | Calculators | Manuals | CASIO

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