Casio fx-85WA User Manual

Browse online or download pdf User Manual for Calculator Casio fx-85WA. Casio fx-85WA 4 pages. Casio calculator
Also for Casio fx-85WA: Manual (18 pages), User Manual (19 pages), User Manual (18 pages)

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User's Guide

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U.S. Pat, 4,410,956 |

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SA9911-A

Printed in China

HA310973-1

Grasp the top of the cover, and slide the unit out from the

bottom.

® To Replace the cover

Grasp the top of the cover, and slide the unit in from the

bottom.

Always slide the unit into the cover with the unit's display

end first. Never slide the keyboard end of the unit into the

cover.

[IS Hor

6 CORE

autions.

' Be sure to read the following safety precautions helord

using this calculator. Keep this manual handy for later ref-

erence,

——

Caution

: i This symbol is used to indicate information that can

J. 0

result in personal injury or material damage if ignored.

Batieries

® After removing the batteries from the calculator, put

them in a safe place where there is no danger of

them geiting into the hands of smail children and

accidently swallowed,

* Keep batteries out of the reach of smail children. If

accidently swallowed, consult with a physician im-

mediately.

* Never charge batteries, try to take batteries apart, or

allow batteries to become shorted. Never expose bat-

feries to direct heat or dispose of them by incinera-

tion.

» Misuse of batteries can cause them to leak acid that

can cause damage to nearby items and creates the

possibility of tire and personal injury.

»* Always make sure that a battery's positive ® and

negative © sides are facing correctly when you

load it into the calculator.

* Remove the batteries if you do not plan to use the

calculator for a long time.

* Use only the type of batteries specified for this cal-

culator in this manual.

Disposing of the Calculator

80 Can Cause certain components to suddenly burst,

creating the danger of fire and personal injury.

® The displays

and illustrations (such as key markings)

shown in this User's Guide are for illustrative pur-

poses only, and may differ somewhat from the actual

items they represent. .

Ment

wae

® The contents of this inafuial

6 subject

change :

_ without notice,"

:® Inrio event shall CASIO yom

to anyone for special

"sequential daniages.in connection with or arising out -

of the purchase or use of these materials. Moréover,

. CASIO Computer Co:; Lid'shall:not

be liable for any

_-¢laim of any kind whatsoever against

the use of these

"materials by any. other. party... :

ailatéral; incidental, of on- | 2

® Be sure to press the P button on'the back of the cal-

culator before using it for.the first time: fOese TE:

. B3WA/Tx-270W PLUS/fx-350TL).

e Be sure to press the (00) key before using 'the calgu-

_ lator for the first time Pew

ee nA

° Even if the calculator i is operating normally, replace

the battery at least once every three years for the

fx-BSWA/fx-85W/fx-B5

WA /fx-270W PLUS/fx-300W/fx-

350TL/fx-911W, or at least once every. two years

for the {-82TL.

Dead battery can leak, causirig damage to and maifunc-

tion of the caiculator. Never leave ie dead battery i in 'the

calculator.

The battery" that comes with this: unit 'discharges

slightly during shipment.and-storage. Because of

this, it may require replacement: sooner hen ane nor-

'mal expected baitery life.

ve".

'Low battery power can cause memory contents fo

, become corrupted or Josi completely... Always. keep

: written records of all important data...

Avoid use and storage in areas ning to 'eripart

' ture extremes, .

Very low temperatures can cause 8 low ispley response,

total failure of the display, and shortening of battery life.

Also avoid teaving the calculator in direct sunlight, near

a window, near a heater of anywhere else it might be-

come exposed to very high temperatures, Heat can cause

discoloration or deformation e the calculators case, 'and

damage to internal-circuitry. «

'Avoid use and storage:in 'areas: 5 subjected " large

"amounts of humidity.and dust. -

Take care never to leave the caloulsiée where it might be

splashed by water or exposed to large amounts of hu-

midity or dust. Such elements can damagé internal cir-

cuitry.

Never drop the calculator or otherwise subject it to

strong impact.

Never twist or bend the calculator:

Avoid carrying the calculator i in the pocket of your trou:

~ sers or other tight-filting clothing where it might be sub-

jected to twisting or bending.

Never try to take 'the-calculator apart.

Never press the keys of the calculator with 2 a ball -point

pen or other pointed abject...

Use a soft, dry cloth to'clean the extérior. of the unit.

" If the calculator becomes very dirty, wipe it off with a

-- cloth moistened in a 'weak: solution of water and a mild

: netitral household detergent. Wrihg out all excess modis-

- 'ture before wiping the calculator.Never usé thinner, ben-

"zine or other. volatile agents to clean the calculator, Do-

» ing so can remove printed markings and damage. the

. case.

Lobe

€

You can simultaneously eheck ane calculation

formula and its answer. :

The first line displays the:calculation foams

~The second line displays the answer. i

ieee

Application: a :

Calculation Modes}

'Normal calculations

«2

Standard deviation

........

calculations

tah

Regression calculations ( |

"REG

REG ™

|. 8D

-Base-n calculations

~_- | BASE-N|'b (binary)

(fx-85W only)

(octal)

: dl (decimal)

Angle Unit Modes ©:

Degrees _.

Radians

Grads

| Dispiay Modes

e v

thts,

- Exponential notation:

(Canceling FIX and SCI

specification)

;

Number of decimal

place'specification —

Number of sigeiticant «

sas ec

'Note!

* Mode indicators appear in the lower part of the 'display,

- except for the Base-7 indicators which appear in the ex:

: ponent part of the display,

» You cannot set the angle unit or the display mode whilé

_ the calculator is in the BASE-N mode (fx-85W).

'¢ The COMP, SD, and REG modes can be used in combi

'. nation with the angle unit modes.

* Be.sure to check the current calculation mode (sp, REG,

__ COMP) ; and angle unit mode: vee RAD, SRAM before

beginning a calculation.

fl Input Capacity

° ° The j memory aréa used for calculation' input can hold 79

" *steps> Whenever you input the 73rd step of any caleu-

lation, the cursor changes from "." to "fa" to let you know

memory is" running: low. If you' stil hieéd to input more,

You, should divide your

lation into two Of more paris,

ia Making Corrections. During Input

° Use (i) and OF) to'move the cursor to the location you

want.

Press 4) to delete the number or function at the current

~ cursor position.

Press E48) {Hi8} fo change to an "eat eUiSor 02 C3. Inputting

: "something: while the jiisert cursor Is 'oir the display in-

serts the input at the insert cursor position...

Press (4), (5), Saal ws),

3), oF EB returns to 'the normal cur-

"sor from the insert cursor'

formed. You eenneh make any changes you bis in the

calculation and re-execute it.

;

* Pressing 'AG) does not clear Replay memory, 80 301 ry ean

recall the last calculation even after you press &

° Replay memory is cleared 'whenever you start a new

calculation, change to another mode, or turn off power.

ElError Locator

° Pressing &) or 4) after an error occurs displays the cal-

culation with the cursor positioned at the ocailon phere

the error occurred.

iE Expotidi tial Display F

Formats"

This calculator can display up to 10 digits. Larger v

yalies

are automatically displayed using exponential notation: In

the case of decimal values, you can select between: two

formats that determine.at what paint exponential notation

is used. Press fine] foc] freed faoee] (3) 7] (or 2.) to select: NORM

1 or NORM 2 (ix 'BSW): For other madels, pee bes) (tone (rone}

(3) (4) (or 2): -

rah

¢ NORM 1

With NORM 1, exponential notation is automatically. used

for integer values with more than 10 digits and decimal

values with more than two decimal places.

* NORM 2

With NORM 2; exponential notation is dionaieaiy iisod

for integer values with moré than 10 digits and decimal

values with more than nine decimal places.

° All of the examples in this: manual 'shaw calculation re-

sults-usitig the NORM 1 'format:

;

Answer

Memory' »

« Whenever you press [3 after inputting hee or. an Ox-

pression, the caiculated result is automatically.stored in

Answer Memory. You can recall Answer bine contents

by pressing as),

« Answer Memory can store up to ie cl forthe mantissa

* and two digits for the. exponent. -

;

'» Answer Memory contents aré not 'eliangéd if the opera-

tion performed by any = the above eae opersiictie re-

--$ults in an error.

° Use the COMP mode for basic caiculations. .....

¢ Example

1: 3x(5x408) 00 eof.

ses ui

ees

"memory, or subtracted from memory. nde pendant

memory is convenient for 'calculating cumulative totals.

* Independent memory uses the same memory area as

variable M.

* To clear independent memory w, input (9

(6 sia) (a

* Example:

wee

t e

Rbk,

23 + 9.= 32.0

9 Sid GA)

153-6

= 47..:

50 BE 6 0)

Variables

e There are nine variables (A through F Ms, xX nd¥), which

'can be Used to store' Galas 'Cofistants, : results, 'and other

values,"

° Use the following dpetaitiont to delete dat assign a to all

nine variables: bor) (mel) GB.

;

° Use the following operation to delete data | assigned toa

particular variable: 0) 810) (4). This oan delétes the

data assigned to variable A. .

;

° Example:

193.2 + 23 = 8.42«

193.2 + 28 6.9

499-9

Gi)

sea [aT]

fas

eee

a Fraction Calculations .

® Use the COMP mode for traction 'calculations.

* Values are automatically displayed in decimal format

whenever the total number of digits'of a fractional value °

{integer + numerator + denominator + separator marks)

exceeds 10,

e Example 4 S414

4 o a

1B 4h ¢ 12)

2 {a 3

TAB.

o Example 2: 4 + 6°

<q 2 2

® Fraction/decimal calculation results are always decimal.

@ Decimal-to-Fraction Conversion

* Example: 2.75

25 2768

al (Se)

Fraction-to- Decimal Cotiversion be

° Example:

$0 0.5 st ee: