Casio AL-8 User manual

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t£dam

the

batteries

leak*:

taken

not

!eave

the

daad

batteries

inside

make

sure

you

switch

off

the

poOver

When

you

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the

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change

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purchased

nearby

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IIMTROOUCTIOIM

Dear

Customer,

Congratulations

your

purchase

this

superb

little

electronic

cal¬

culator

with

all

the

basic

and

some

very

special

calculating

abilities.

This

high

precision

electronic

calculator

will

serve

you

well

for

years

properly

looked

after.

handle

the

calculators

many

abilities

relatively

easy

but

suggest

you

spend

few

minutes

with

this

instruction

manual

you

want

make

full

use

its

versatile

features.

INDEX

KEYBOARD

DISPOSABLE

DRY

BATTERY

OPERATION

OVERFLOW

CHECK.

BASIC

OPERATIONAL

EXAMPLES.

!!!!!!.!

LTIP

L1CATION/DI

VIS

WITH

CONSTANT

PERCENTAGE

CALCULATION.

MEMORY

CALCULATION.

CALCULATIONS

USING

THEQKEY.

APPLICATIONS.

10.

PECIFICATIONS

KEYBOARD

POWER

SWITCH:

Move

the

left-side

switch

forward

start

calculation.

READ-OUT

_Oj

Shows

each

entry

and

result

through

Digitron

tube

panel,

suppressing

unnecessary

0's

(zeroes).

The

fraction

and

time

sexagesimal

scale

are

displayed

with

the

symbols

("_l"

and

□

)

respectively

follows.

[Example]

disp

i12_«23T

hours

minutes

seconds

displayed:

[

41,

NUMERAL/DECIMAL

POINT

KEY

®,

Enters

numerals.

For

decimal

places

use

the

key

l°

cal

sequence.

FUNCTION

COMJV1AND/RESULT

KEYS

□

Press

the

numeral

and

function

command

keys

the

same

logical

sequence

the

formula

and

the

£3

key

obtains

the

answer.

correct

function

command,

depress

the

appropriate

key

{E3,Q,Q

fl).

MEMORY

PLUS

(MINUS)

KEY(2J(GB):

Transfers

the

number

displayed

the

memory

positively

(negatively).

Obtains

answers

four

functions

and

automatically

accumulates

them

into

the

memory

positively

(negatively),

MEMORY

RECALL

KEY®:

Recalls

contents

the

memory

without

clearing

the

same.

MEMORY

CLEAR

KEY

Clears

the

contents

the

memory.

NOTE:

When

the

function

mode

selector

mentioned

below

set

the

"SD(a)"

position,

the

123

Leys

obtain

the

arithmetical

mean,

number

data,

the

sum

square

and

the

sum

respectively

statistical

calculations.

PERCENT

KEY

B!|:

Performs

percentage

calculations

including

mark-ups/discounts,

CLEAR

KEY

Clears

entry

for

correction.

When

depressed

after

function

commands,

clears

entire

machine

except

the

memory,

ALL

CLEAR

KEYffl:

Clears

entire

machine

except

the

independent

memory,

and

also

releases

overflow

check.

CUT

DECIMAL

MODE

SELECTOR

r~IT

the

"P"

position,

the

decimal

floats

and

the

underflow

system

works

protect

the

significant

digits.

the

"CUT"

position,

answer

automatically

cut

off

decimal

places,

applying

floating

mode

for

entry

and

intermediate

result.

the

"5/4”

position,

answer

rounded

off

similar

way

the

above.

rem

tuns

SD«n

FUNCTION

MODE

SELECTOR

setting

the

selector

the

appropriate

position,

the

key

per¬

forms

the

following

operations:

the

”\T

position,

extracts

the

square

root.

the

"GT"

position,

recalls

the

total

accumulated

the

key.

the

"rem"

position,

obtains

the

remainder

while

the

key

gives

the

integer

answer

division.

the

position,

performs

fractional

calculations

and

also

converts

the

answer

obtained

fraction

the

key

the

decimal

scale.

the

"hms"

Position,

performs

time

calculations

(or

angle

cal¬

culations)

and

also

converts

the

answer

obtained

decimal

the

key

the

sexagesimal

scale.

the

"SD(a)"

position,

retrieves

the

standard

deviation

statistical

calculations.

PRE-PROGRAMMED

FUNCTION

KEYQ;

combination

with

the

function

mode

selector,

performs,

the

above

operations.

5/DISPOSABLE

DRY

BATTERY

OPERATION

This

calculator

operates

either

dry

batteries

with

the

use

the

adaptor.

DRY

BATTERY

OPERATION

With

two

size

Manganese

dry

batteries

(SUM-3)

operates

for

approximately

hours

continuously.

decrease

battery

power

indicated

0/'

recuring

the

display,

when

all

except

the

first

column

figures

grow

dim.

Batteries

should

this

time

renewed.

When

you

have

finished

your

calcula¬

tion,

sure

switch

off

the

power

save

the

battery.

change

batteries,

put

the

power

switch

off

first.

Slide

open

the

battery

cover

and

replace

batteries.

OPERATION

Use

only

adaptor

with

the

same

voltage

rating

(110,

117,

220

(4)

240V)

your

supply

prevent

component

damage.

doubt,

ask

your

local

dealer.

Plug

the

adaptor

into

the

outlet

and

the

cord

into

the

calculator,

this

automatically

cuts

off

battery

power

supply.

*To

prevent

damage

the

calculator,

USE

ONLY

THE

ADAPTOR

recommended

your

dealer.

3/OVERFLOW

CHECK

Overflow

indicated

the

"£/'

sign

and

stops

further

calculation.

release

the

locked

registers

caused

the

overflow

check,

depress

the

key.

Overflow

occurs:

the

mode,

when

answer,

whether

intermediate

final,

accumulated

total

the

memory

exceeds

digit

integers

(or

digits,

when

the

figure

negative.).

the

5/4"

“CUT"

mode,

when

the

integer

part

final

answer

accumulated

total

the

memory

exceeds

digits

digits,

when

the

figure

negative.).

When

fractional

calculation

performed

with

the

denominator

4/BASIC

OPERATIONAL.

EXAMPLES

There

need

depress

the

key

prior

starting

each

new

calculation.

necessary

set

the

function

mode

sefector

the

Position

unless

otherwise

instructed.

Note:

perform

problem

commencing

with

negative

figure

operate

ENTRY

sequence.

EXAMPLE

OPERATION

READ-OUT

(-2,6)X7=-18.2

"F"

QB2Q6Q7Q

^1872]

2X{-3)~-(-8)

=0,75

"F"

2D3BB

S8BB

MULTIPLICATION/D!VISION

WITH

CONSTANT

ENTRYQQ(BB)

ENTRYQ.Obtains

product

(quotient}.

ENTRYBl.Obtains

product

(quotient).

Number

entered

set

constant

multiplier

(divisor}.

*To

renew

the

constant,

the

same

operation

steps

above.

The

constant

released

when

normal

calculating

performed.

EXAMPLE

(K)

2.3

27.6

xi2=108

4.56X12=

54.72

OPERATION

READ-OUT

EXAMPLE

OPERATION

READ-OUT

(JO

=2.5=29.6

85.2=2.5=34.08

=2.5=

2.4

(K)

3x6x4=

3x6x5=

3X6X6=108

306E304EI

29.6

34,08

2.4

90.

108.

Square

/powers

and

reciprocals

are

performed

follows.

EXAMPLE

OPERATION

READ-OUT

1.7

2.89

1.7

4.913

1.7

=8.3521

107QDB

2.89

4.913

8.3521

0.25

0.0625

EXAMPLE

OPERATION

READ-OUT

=0.4561403

"5/4"

12EI45BS26Q

[

0.47?]

PERCENTAGE

CALCULATION

The

key

performs

percentage

calculations

with

x/-r

operations.

De¬

pressing

Oiromediately

after

the

key

gives

mark-up

discount.

EXAMPLE

OPERATION

6%of

7530.

451.8

"F"

753OQ60

Percentage

789

against

1230

64.15

"5/4"

789B123O0

READOUT

451781

64.1

constant

a/so

utilized

percentage

calculations.

15%

mark-up

1600„

1840

25%

discount

7890.

5917.5

1600Q15S

1840.

"F"

7890Q25E3Q

7/MEMORY

CALCULATION

□

ENTRYQ

ENTRY

(GB)

Obtains

answer

and

auto¬

matically

accumulates

into

the

memory

positively

(negatively).

ENTRY

Q(B,D,C3)

ENTRY

(Cfl)

Obtains

answer

and

auto-

’

matically

accumulates

into

the

memory

positively

(negatively).

....

Recalls

the

accumulated

to-

tal

the

memory

without

clearing

the

same.

—-

Clears

contents

the

memory.

sure

depress

the

key

prior

starting

memory

calculation.

EXAMPLE

OPERATION

READ-OUT

53X21=1113

46x37—1

702

2815

70+40+100—210

-}80~

20=

115

"F"

70E940Q

Offl

800

200

S/CALCULATIONS

USING

THE

KEY

This

calculator

enables

you

perform

various

kinds

practical

cal¬

culations

using

the

key

combination

with

the

function

mode

selector.

NOTE:

PLEASE

STICK

THE

LABEL

ENCLOSED

THE

BACK

THE

CALCULATOR

FOR

YOUR

REFERENCE,

8-1

Square

root

calculation

With

the

function

mode

selector

the

"V~"

position,

the

key

ex¬

tracts

the

square

root

the

number

displayed

digits,

regardless

any

decimal

setting.

The

minus

sign

(—)

appears

when

negative

figure

extracted.

EXAMPLE

vT5>3.4641016„

/3J

=1.4070522

8-2

Automatic

accumulation

With

the

function

mode

selector

the

"GT"

position,

the

□

key

transfers

the

number

display,

whether

entry

result,

the

memory

independent

the

and

keys,

and

the

key

recalls

the

contents

the

memory.

Depress

the

key

clear

the

contents

the

memory

accumulated

the

key.

EXAMPLE

53+6=59

23-8=

56x2=112

99+4=

24,75

210,75

OPERATION

READ-OUT

053060

□

2+3+4

5+6+7

=18

12+3.14=15.14

42.

7+8-9=

45X1,3

=58.5

129.5

Grand

total:

71.64

"GT

jiru

ESC32O3H40

5Q6EJ7Q

2Q3GD140

QCQ

(E7H8Q90

4501030

1^2

__Sk.

18.

15.14

42.14

65.

58.5

129,5

171.64

8-3

Remainder

division

With

the

function

mode

selector

the

"rem"

position,

the

key

obtains

the

remainder

while

the

key

delivers

the

integer

answer

for

the

quotient

division.

Even

the

decimal

mode

selector

set

either

the

"5/4"

the

"CUT"

position,

the

quotient

always

displayed

integer

figures.

8-4

Fractional

calculation

With

the

function

mode

selector

the

position,

fractional

cal¬

culations

can

performed

The

display

capacity

fraction,

whether

entry

result,

limited

max.

digits

for

each

integer,

numerator

denominator

part

and

the

same

time

max.

digits

the

sum

each

part.

When

answer

exceeds

the

above

capacity,

automatically

con¬

verted

the

decimal

scale.

During

fractional

calculations,

the

independent

memory

keys

(CD,

QB)

depressed,

overflow

occurs.

*The

decimal

mode

selector

also

not

effective

fractional

calcula¬

tions.

EXAMPLE

(=3.65)

Depression

the

key

after

the0key

converts

the

answer

fractions

the

decimal

scale.

However,

the

decimal

answer

can

not

re-converted

the

fractional

scale.

EXAMPLE

OPERATION

READ-OUT

3-4^

(Reduction)

3B456B78

During

fractional

calculation,

figure

reduced

the

lowest

terms

depressing

function

command

key

(EXOcQor

the

key

the

figure

reducible

above.

102030

4B506B

708090

j2»i3.

8_>1

The

answer

calculation

performed

between

fraction

and

decimal

displayed

decimal.

2.5=6.3888888

23045

23-i45.

2Q5B

16.3888888

*The

answer

calculation

with

constant

and/or

percentage

also

displayed

decimal.

EXAMPLE

741

~-=61

7.49999

963x-§

=802,49999

75%

mark-up

1.225609

789

123

OPERATION

"a-Q

"5/4'

50600

741

78901230

750

READ-OUT

0.8333333

617.49999

802.49999

6-i17->41.

4.8109756

1.225609

8-5

Time

calculation

With

the

function

mode

selector

the

"hms"

position,

time

calculation,

calculations

such

angles

are

performed

decimal.

Depression

the

key

after

the

key

converts

the

answer

obtained

decimal

the

sexagesimal

scale.

During

time

calculations,

the

independent

memory

key

(SB,

£5)

depressed,

overflow

occurs.

The

decimal

mode

selector

also

not

effective

time

calculations.

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