Casio FX-95MS Manual

Casio Regnemaskine FX-95MS

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fx-95MS fx-500MS

User’s Guide

CASIO Worldwide Education Website

http://edu.casio.com

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http://edu.casio.com/forum/

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1. Important Information

• The displays and illustrations (such as key markings) shown in

this User’s Guide are for illustrative purposes only, and may differ

somewhat from the actual items they represent.

• The contents of this manual are subject to change without notice.

• 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 this product

and items that come with it. Moreover, CASIO Computer Co., Ltd.

shall not be liable for any claim of any kind whatsoever by any other

party arising out of the use of this product and the items that come

with it.

• Be sure to keep all user documentation handy for future reference.

2. Sample Operations

Sample operations in this manual are indicated by a icon. Unless

specifically stated, all sample operations assume that the calculator

is in its initial default setup.

3. Initializing the Calculator

Perform the following procedure when you want to initialize the

calculator and return the calculation mode and setup to their initial

default settings. Note that this operation also clears all data currently

in calculator memory.

O N!(CLR) (All)3 =

4. Safety Precautions

Battery

• Keep batteries out of the reach of small children.

• Use only the type of battery specified for this calculator in this

manual.

5. Handling Precautions

• Dim figures on the display of the calculator indicate that battery

power is low. Continued use of the calculator when the battery

is low can result in improper operation. Replace the battery

as soon as possible when display figures becomes dim. Even

if the calculator is operating normally, replace the battery at

least once every two years. A dead battery can leak, causing

damage to and malfunction of the calculator. Never leave a

dead battery in the calculator.

• The battery that comes with the calculator discharges slightly

during shipment and storage. Because of this, it may require

replacement sooner than the normal expected battery life.

• Do not use an oxyride battery* or any other type of nickel-based

primary battery with this product. Incompatibility between

such batteries and product specifications can result in shorter

battery life and product malfunction.

• Avoid use and storage of the calculator in areas subjected to

temperature extremes, and large amounts of humidity and dust.

• Do not subject the calculator to excessive impact, pressure,

or bending.

• Never try to take the calculator apart.

• Use a soft, dry cloth to clean the exterior of the calculator.

• Whenever discarding the calculator or batteries, be sure to

do so in accordance with the laws and regulations in your

particular area.

* Company and product names used in this manual may be registered

trademarks or trademarks of their respective owners.

6. Removing the Hard Case

Before using the calculator, slide

its hard case downwards to

remove it, and then affix the hard

case to the back of the calculator

as shown in the illustration

nearby.

RJA526807-001V01 SA1208-A Printed in China

E 7. Turning Power On and Off

Press O to turn on the calculator.

Press 1A(OFF) to turn off the calculator.

Auto Power Off

Your calculator will turn off automatically if you do not perform any

operation for about 10 minutes.

8. Adjusting Display Contrast

1. Press the , key a number of times until

you reach the setup screen shown to the

right.

2. Press c.

3. Use d e and to adjust contrast.

4. After the setting is the way you want, press . A

Important: If adjusting display contrast does not improve display

readability, it probably means that battery power is low. Replace

the battery.

9. Reading the Display

The display of the calculator shows expressions you input, calculation

results, and various indicators.

Input expression

Calculation result

Indicators

10. Specifying the Calculation Mode

When you want to perform this type of

operation:

Perform this key

operation:

General calculations N1(COMP)

Standard deviation N2(SD)

Regression calculations N3(REG)

Equation solution NN1(EQN)

Note: • The initial default calculation mode is the COMP Mode.

• Mode indicators appear in the upper part of the display. Be sure to

check the current calculation mode (COMP, SD, REG) and angle unit

setting (Deg, Rad, Gra) before beginning a calculation.

11. Configuring the Calculator Setup

Pressing the , key more than once displays additional setup

screens. Underlined ( ___ ) settings are initial defaults.

1Deg 2Rad 3Gra Specifies degrees,

radians or grads as the angle unit for value

input and calculation result display.

Note: In this manual, the v symbol next to a sample operation

indicates degrees.

1Fix 2Sci 3Norm Specifies the

number of digits for display of a calculation

result.

Fix: The value you specify (from 0 to 9) controls the number of decimal

places for displayed calculation results. Calculation results are

rounded off to the specified digit before being displayed.

Example: 100 ÷ 7 = 14.286 (Fix 3)

Sci: The value you specify (from 1 to 10) controls the number of

significant digits for displayed calculation results. Calculation results

are rounded off to the specified digit before being displayed.

Example: 1 ÷ 7 = 1.4286 × 10

–1

(Sci 5)

Norm: Selecting one of the two available settings ( Norm 1 , Norm

2) determines the range in which results will be displayed in non-

exponential format. Outside the specified range, results are displayed

using exponential format.

Norm 1: 10

–2

 | x |, | x |  10

Norm 2: 10

–9

 | x |, | x |  10

Example: 1 ÷ 200 = 5 10×–3 (Norm 1); 0.005 (Norm 2)

d e

a+b i r∠θ

1 2a+bi r∠ (EQN Mode only) Specifies either rectangular

coordinates (a b r +i) or polar coordinates ( ∠) for EQN Mode

solutions. The “r∠” indicator is displayed while polar coordinates

(r ∠) are selected.

1 2ab/c d/c Specifies either mixed fraction (ab/c) or improper

fraction (d/c) for display of fractions in calculation results.

1 2Dot Comma Specifies whether to display a dot or a

comma for the calculation result decimal point. A dot is always

displayed during input.

Dot: Period decimal point, comma separator

Comma: Comma decimal point, period separator

Initializing Calculation Mode and Setup

To return the calculation mode and setup to the initial defaults shown

below, press (CLR) (Mode) .O N!2 =

Calculation Mode: COMP

Angle Unit: Deg

Exponential Display Format: Norm 1

Fraction Display Format: a b/c

Decimal Point Character: Dot

12. Inputting Expressions and Values

4 × sin30 × (30 + 10 × 3) = 120 v

4 *s 30 *( 30 + 10 * 3 )=

Note: • The memory area used for calculation input can hold 79

“steps”. One step is taken up each time you press a number key

or arithmetic operator key ( +, -, *, /). A ! or a key

operation does not take up a step, so inputting !W(

'), for

example, takes up only one step. • Whenever you input the 73rd

step of any calculation, the cursor changes from “_” to “ k” to let you

know memory is running low.

Calculation Priority Sequence

When the priority of two expressions is the same, the calculation is

performed from left to right.

1st Function with parentheses: Pol(x y r , ), Rec( , )

2nd

Type A functions: With these functions, the value is

entered and then the function key is pressed. (x3, x2, x−1,

x!, ° ’ ”, , m m1, m2, , °, nr, g)

3rd Powers and roots: ^(xy),

4th Fractions

5th Implied multiplication of , πe (natural logarithm base),

memory name, or variable name: 2 , 3πe, 5A, A, etc. π

6th

Type B functions: With these functions, the function key is

pressed and then the value is entered. ( , '3', log, ln,

ex, 10x, sin, cos, tan, sin−1

, cos −1

, tan−1, sinh, cosh, tanh,

sinh−1 , cosh−1, tanh−1 , (−))

7th Implied multiplication of Type B functions: 2'3, Alog2, etc.

8th Permutation ( P ), combination ( C )n r n r

9th Multiplication, division ( , ÷)×

10th Addition, subtraction (+, –)

• The negative sign (–) is treated as a Type B function, so particular

care is required when the calculation includes a high-priority Type

A function, or power or root operations.

Example: (–2)4 = 16; –24 = –16

Making Corrections During Input

• Use d e and to move the cursor to the location you want.

• Press D to delete the number or function at the current cursor

position.

• Press !D(INS) to change to an insert cursor . Inputting t

something while the insert cursor is on the display inserts the input

at the insert cursor position.

• Pressing !D(INS), or = returns to the normal cursor from the

insert cursor.

13. Basic Calculations

Fraction Calculations

+ 1 = 1

3 2 6

1 2 $ 3 + 1 $ 2 = 1 1 6.{ {

Note: • Mixing fractions and decimal values in a calculation will cause

the result to be displayed as a decimal value. • Fractions in calculation

results are displayed after being reduced to their lowest terms.

To switch a calculation result between improper fraction and

mixed fraction format: Press 1$( d/c ).

To switch a calculation result between fraction and decimal

format: Press $.

Percent Calculations

150 × 20% = 30 150 * 20 1=

(%)

30.

Calculate what percentage of 880 is 660. (75%)

660 / 880 1=(%) 75.

Increase 2500 by 15%. (2875)

2500 * = + 15 1(%) 2875.

Discount 3500 by 25%. (2625)

3500 * = - 25 1(%) 2625.

Discount the sum of 168, 98, and 734 by 20%. (800)

168 + + = 98 734 G1~ -(STO) (A)

a-(A)* (%) * 20 1= - 800.

* As shown here, if you want to use the current Ans (answer) memory

value in a mark up or discount calculation, you need to assign the

Ans memory value into a variable and then use the variable in the

mark up/discount calculation.

300 grams are added to a test sample originally weighing

500 grams, producing a final test sample of 800 grams. What

percent of 500 grams is 800 grams? (160%)

300+ =500!(%) 160.

What is the percentage change when a value is increased

from 40 to 46? (15%)

46 -40 !=(%) 15.

Degree, Minute, Second (Sexagesimal)

Calculations

The following is the input format for a sexagesimal value: {degrees}

$ {minutes} $ {seconds} $.

Note: You must always input something for the degrees and minutes,

even if they are zero.

2°20´30˝ + 39´30˝ = 3°00´00˝

2 $ $ $ $ $ $ 20 30 + 0 39 30 = 3°0°0.

Convert 2°15´18˝ to its decimal equivalent.

2 $ $ $ $ 15 18 = 2.255

(Converts decimal to sexagesimal.) ( ) !$←2°15°18.

Multi-Statements

You can use the colon character (:) to connect two or more

expressions and execute them in sequence from left to right when

you press =.

3 + 3 : 3 × 3 3 + 3 Sr(:) 3 * 3 = 6. Disp

= 9.

Using Engineering Notation

A simple key operation transforms a displayed value to engineering

notation.

Transform the value 1234 to engineering notation, shifting the

decimal point to the right.

1234 =W

1.234×103

W 1234.×100

Calculation History

In the COMP Mode, the calculator remembers up to approximately

150 bytes of data for the newest calculation. You can scroll through

calculation history contents using and . f c

1 + 1 = 2 2 + 2 = 4 3 + 3 = 6

1 + = 1 2 + = 2 3 + = 3 6.

(Scrolls back.) f4.

(Scrolls back again.) f2.

Note: Calculation history data is all cleared whenever you press O,

when you change to a different calculation mode, or whenever you

initialize modes and settings.

Replay

While a calculation result is on the display, you can press

d or e

to edit the expression you used for the previous calculation.

4 × 3 + 2.5 = 14.5 4

* 3 + 2.5 = 14.5

4 × 3 − 7.1 = 4.9

(Continuing) dYYYY- 7.1 = 4.9

Answer Memory (Ans)

The last calculation result obtained is stored in Ans (answer) memory.

Ans memory contents are updated whenever a new calculation result

is displayed. In addition to =, Ans memory contents are also updated

with result whenever you press !=(%), , m!m(M–), or

!~(STO) followed by a letter (A through F, or M, X, or Y).

To divide the result of 3 4 by 30 ×

3 * = 4

(Continuing) / = 30

123 + 456 = 579 123 + 456 =

579.

789 – 579 = 210 (Continuing) 789 - =G 210.

Variables (A, B, C, D, E, F, X, Y)

Your calculator has eight preset variables named A, B, C, D, E, F,

X, and Y.

To assign the result of 3 + 5 to variable A

+ 5 1t(STO) y

(A)

To multiply the contents of variable A by 10

(Continuing) Sy(A) * 10 =

80.

To recall the contents of variable A

(Continuing) ty(A)

To clear the contents of variable A

0 1t(STO) y

(A)

Independent Memory (M)

You can add calculation results to or subtract results from independent

memory. The “M” appears on the display when there is any value

other than zero stored in independent memory.

To clear the contents of M

0 1t(STO) (M) l0.

To add the result of 10 5 to M×

(Continuing) 10 * 5 l 50.

To subtract the result of 10 + 5 from M

(Continuing) 10 + 5 1l(M–) 15.

To recall the contents of M

(Continuing) tl(M) 35.

Note: Variable M is used for independent memory.

Clearing the Contents of All Memories

Independent memory and variable contents are retained even if you

press A, change the calculation mode, or turn off the calculator.

Perform the following procedure when you want to clear the contents

of all memories.

p!,(CLR) (Mcl)1 =

14. Function Calculations

ππ

π is displayed as 3.141592654, but π = 3.14159265358980 is

used for internal calculations.

e: e e is displayed as 2.718281828, but = 2.71828182845904 is

used for internal calculations.

sin, cos, tan, sin

−1

, cos

−1

, tan

−1

: Trigonometric functions. Specify

the angle unit before performing calculations. See 1.

sinh, cosh, tanh, sinh

−1 , cosh

−1

, tanh

−1

: Hyperbolic functions. The

angle unit setting does not affect calculations. See 2.

°,

: These functions specify the angle unit. ° specifies degrees,

radians, and

grads. Input a function from the menu that appears

when you perform the following key operation: 1G(DRG ').

See 3.

10x, ex : Exponential functions. See 4.

log

: Logarithmic function. See 5.

: Natural logarithm to base e . See 6.

x2 , x3, ^(xy), '

, 3'

, x'

, x−1

: Powers, power roots, and

reciprocals. See 7.

Pol, Rec : Pol converts rectangular coordinates to polar coordinates,

while Rec converts polar coordinates to rectangular coordinates.

See 8.

Pol( x y r r x y, ) = ( , ) Rec(, ) = (, ) Specify the angle unit

before performing

calculations.

Calculation result

displayed in the range

of −180° 

 180°.

Rectangular

Coordinates (Rec)

Polar

Coordinates (Pol)

x ! : Factorial function. See 9.

Ran# : Generates a 3-digit pseudo random number that is less than

1. See 10.

n r n rP , C : Permutation (n r n rP ) and combination ( C ) functions. See

11.

Rnd : The argument of this function is made a decimal value and

then rounded in accordance with the current number of display digits

setting (Norm, Fix, or Sci). With Norm 1 or Norm 2, the argument is

rounded off to 10 digits. See 12 .

Note: Using functions can slow down a calculation, which may delay

display of the result. To interrupt an ongoing calculation before its

result appears, press A.

Examples

sin 30°= 0.5

s 30 = 0.5

sin

−1 0.5 = 30° v 1s(sin

−1

) 0.5

30.

sinh 1 = 1.175201194 ws(sinh) 1 = 1.175201194

cosh

–1 1 = 0 w1c(cosh

−1

) 1

π /2 radians = 90°, 50 grads = 45° v

(

E( π ) / 2 )1G(DRG ') c(R) = 90.

50 1G(DRG ') d(G) = 45.

To calculate e

5 × 2 to three significant digits (Sci 3)

(Sci) 3 1i( e

) 5 * 2 = 2.97×10

log 1000 = 3 l 1000 = 3.

To calculate ln 90 (= loge

90) to three significant digits (Sci 3)

(Sci)

i 90 = 4.50×10

1.2 × 10 3 = 1200 1.2 * = 10 W 1200.

(–52)3 = –15625 (- 5 x)M 3 =–15625.

5 = 2 5 (1Mx ') 32 = 2.

To calculate '

2 × 3 (= 3'

2 = 4.242640687...) to three

decimal places (Fix 3)

N 1 3 * =(Fix) 1 2 3 4.243

Produkt Specifikationer

Mærke:	Casio
Kategori:	Regnemaskine
Model:	FX-95MS
Type:	Videnskabelig
Bredde:	78 mm
Dybde:	155 mm
Højde:	19.5 mm
Vægt:	130 g
Produktfarve:	Sort
Kontroltype:	Knapper
Skærmtype:	Dot matrix
Formfaktor:	Desktop
Automatisk slukning:	Ja
Strømforbrug (typisk):	0.0001 W
Husmateriale:	Plast
Strømkilde:	Batteri
Certificering:	CE
Anden skærm:	Ingen
Batterilevetid (maks.):	17000 t
Batteritype:	AA
Baggrundsbelysning:	Ingen
Antal understøttede batterier:	1
Tekstlinjer:	2 Linier
Automatisk slukning efter:	10 min.
Overdækning:	Ja
Cifre:	12 cifre
Display vipning:	Ingen
Symbolsk notation:	Fraction,Pi,Square root