Casio BF-100 Manual de usuario

ELECTRONIC

CALCULATOR

CALCULADORA

ELECTRONICA

OPERATION

MANUAL

OPERACION

O062E

#®

Printed

Japan

Thank

you

very

much

for

purchasing

our

electronic

calculator

with

built-in

financial

calculation

functions.

This

instruction

manual

explains

the

fundamental

methods

for

the

use

and

handling

the

calculator.

Please

read

carefully

that

you

may

fully

understand

all

the

various

functions.

Please

notify

any

errors

omissions

you

find

this

manual.

cannot

responsible

for

damage

loss

resulting

from

the

information

contained

herein,

use

calculation

examples,

misprints

omissions.

CONTENTS

T/INOMENCLATURE

2...

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nee

eee

tee

eee

eens

Z2/POINTS

CAUTION

2...

ccc

eee

tenet

eee

eens

3/IBATTERY

MAINTENANCE

...

1...

ccc

eee

teen

tenes

4/BEFORE

USING

THE

CALCULATOR

........

eee

ete

tenes

5B/BASIC

CALCULATIONS

2...

cece

cee

eee

eer

eee

eens

Four

Basic

Calculations

0.0.0.

Constant

GalewlatiGns:

20.8

aaa

Se,

does

Babee

ale

Ser

Percentage

Calculations

0...

Memory

Calculations...

eae

Dale

Cateulitions:

64.44

aoe

pet

Farner:

Calculations:

soe.04

bec

head

alee

aie

G/FINANCIAL

CALCULATIONS

2.0...

cee

eee

ees

Compound

Interest

Calculations

.........-.--0.

SSE

disses

ita

cia

Ieee

Coan

Caleulations

fentcdie

acne

bia

Eee

ges

Bose

Annual

Payments

2.0.00

0000

eee

bee

eee

nee

Bonus

Payments.

o.oo

lead

hep

dae

etek

fistallmentSavinigs:

.a.h.fa

beetle

ead

SEES

eae

eats

haha

baal

Deferred

Annuity

Present

Values

205.

7/APPLICATIONS

......

Sie

atieree

ase

kus

euaks

eres

eer

er:

B/SPECIFICATIONS

1...

0...

cee

eee

tee

eee

teeta

pore

ewe

1/NOMENCLATURE

”

eee

(1)

Power

switch

aan:

Move

the

slide

switch

the

right

turn

the

power

ON.

The

independent

memory

and

Made

designation

for

financial

calculation

will

retained

even

after

the

power

turned

OFF.

(2)

Display

ENTINV

EXET

INT

LOAN

AMORT

BNS

(ry

ama

muUecc

moc

(EL

ltt

at,

(iss

(314)(24)————__

(25)(26)(27)

The

display

shows

input

data,

intermediate

results

and

results

operation,

(18)(19)(20)—---.._]

(211221123)

date

displayed

follows:

(14)(13)(12)

“—"

will

not

lit

from

the

year

2000

2099.

[Indicating

May.

(Fri.),

1981.)

Year

Month

Date

Day*

esac

;

Sun.

Mon.

Tue,

Wed.

Thu.

[esa

Fri,

Sai.

-3-

“E™

(error

check,

see

page

12)

may

displayed

the

position

the

least

digit

financial

calculations,

"INT",

“LOAN”,

“SF,

“AMORT",

“BNS",

“GEM

ange

“fm

will

displayed

indicate

the

operating

mode,

“ENT/INV’

indicate

«.

condition

available

for

data

input,

and

"py"

indicate

the

condition

available

for

recs:

output,

“M"

will

displayed

when

data

stored

the

independent

memory.

“KO

will

displayed

during

calculation

with

constants.

ENT

INV

(3)

Entry/Inverse

key

When

entering

data,

press

this

key

just

prior

pressing

each

key.(Symbolized

here

}

When

activating

the

functions

printed

orange

the

keyboard,

press

this

key

just

prias

pressing

each

key.

(Symbolized

here

{w))

ANS

(4)

Answer

key

(Symbolized

here

)

For

financial

calculations,

find

the

answer,

press

this

key

just

prior

pressing

each

key

(5)

Mode

key

(Symbolized

here

)

Press

this

key

choose

the

proper

mode

for

financial

calculations

(INT,

LOAN,

St.

AMORT,

BNS).

When

this

key

pressed,

the

mode

will

change

sequence

from

INT

LOAN

AMORT

BNS

INT.

Selected

mode

will

displayed

when

the

key

pressed.

(oe)

key

pressed

following

the

key,

Beginning

Period

Payment

(

Ba)

End

Period

Payment

(

)

will

selected

and

displayed.

Any

mode

may

used

when

performing

basic

calculations,

-4-

(6)

(0)

—(S),

(-)

Numeral

and

decimal

point

keys

enter

numerals,

press

these

keys.

For

decimal

places,

press

the

key

its

logical

sequence.

(7)

€3,

&8,

£9.

Gi.

Four

basic

calculation

and

equal

keys

When

performing

four

basic

calculations,

press

these

keys.

The

key

obtains

answer.

Constant

calculations

will

performed

pressing

each

key

(E93.

GY.

E39

H})

twice

successively.

(See

page

13.)

(8)

Percent

key

When

performing

percentage

calculations,

press

this

key.

(9)

Sign

change

key

When

changing

the

sign

displayed

number

from

plus

minus

and

vice

versa,

press

this

key.

: .

(10)

“et?

All

clear/Financial

calculation

clear

key

Press

this

key

clear

all

data

except

independent

memory

and

financial

calculating

value.

Also

press

for

display

when

display

blank

result

the

Auto

Power

Off

Function

(Automatic

Power

Saving

Function.

....

see

page

12).

For

financial

calculation,

prior

beginning

calculate,

press

clear

total

value

memory.

(11)

Clear

key

When

clearing

entry

for

correction,

press

this

key.

M+

(12)

Memory

plus

key

(Symbolized

here

Press

this

key

when

adding

displayed

number

the

contents

the

independent

memory,

has

the

same

function

that

the

key;

obtains

answer

four

basic

calculations

and

automatically

add

the

answer

the

contents

the

memory.

Mow

(13)

Memory

minus

key

(Symbolized

here

©)

Press

this

key

when

subtracting

displayed

number

from

the

contents

the

independent

memory.

obtains

answer

four

basic

calculations

and

automatically

subtracts

the

answer

from

the

contents

the

memory.

(14)

Memory

recall

key

(Symbolized

here

)

Press

this

key

when

recalling

the

contents

the

independent

memory

without

clearing.

Min

(15)

Memory

entry

key

(Symbolized

here

)

Press

this

key

when

stering

displayed

number

the

independent

memory.

Old

data

held

the

memory

will

automatically

cleared.

;

-6-

PRN

(16)

Principal/Number

days

key

calculate

the

principal

portion

amortized

loan,

press

this

key

following

the

(#3)

key.

This

key

will

only

used

calculate

equal

periodic

payments

the

AMORT

mode.

(Symbolized

here

fj)

When

inputting

the

number

days

from

the

date

loan

the

date

the

first

payment,

press

this

key

following

the

key.

This

key

will

only

used

perform

bonus

payment

the

BNS

mode.

(Symbolized

here

(d))

BALIN

(17)

§&

Balance/Number

months

key

find

the

remaining

blance,

press

this

key

following

the

key.

(Symbolized

here

)

When

inputting

the

number

months

from

the

month

loan

the

first

bonus

payment

month,

press

this

key

following

the

fi)

key.

This

key

will

only

used

perform

bonus

payment

the

BNS

mode.

(Symbolized

here

(n))

INT

(18)

Interest

key

When

inputting

interest,

press

this

Key

following

(a4),

find

interest,

press

following

fs}.

(Symbolized

here

(7)

)

(19)

Number

periods

key

When

inputting

number

periods.

press

this

key

following

fq.

find

number

periods,

press

following

(Symbolized

here

()})

awe

Pobre

(20)

Interest

rate

key

When

inputting

interest

rate,

press

this

key

following

fi).

find

interest

rate,

press

following

a).

(Symbolized

here

(i)

)

PMT

(21)

Payment

key

When

inputting

monthly

payment

amount,

press

this

key

following

fy)

find

monthly

payment

amount,

press

following

When

using

this

key,

the

number

periods,

interest

rate,

etc.

must

monthly

basis.

(Sy

mbolized

here

fu)

(22)

Present

value

key

When

inputting

original

amount,

present

value

amount

borrowed,

press

this

key

following

eMT

find

original

amount,

present

value

amount

borrowed,

press

following

&§

(Symbolized

here

Fv)

}

BNS

(23)

Future

value/Bonus

key

When

inputting

future

value

(total

future

value

principal

plus

interest},

press

this

key

following

fy).

find

future

value,

press

following

fg.

(Symbolized

here

fy)

When

inputting

bonus

payment,

press

this

key

following

This

key

will

only

used

perform

bonus

payment

the

BNS

mode.

(Symbolized

here

&3)

-§-

DATE

(24)

Date

key

When

performing

number

days

calculation,

press

this

key

after

inputting

numbers

for

year,

month

and

date.

(Symbolized

here

ait)

)

(25)

Square

root

key

calculate

the

square

root

displayed

number,

press

this

key.

(Symbolized

here

(7)

log

(26)

Common

logarithm

key

find

the

common

logarithm

displayed

number,

press

this

key.

(Symbolized

here

(cg)

xr”

(27)

Power

raising

key

raise

the

base

yth

power.

(Symbolized

here

reins

eamuanpeeee”

Ree

PRAM

ain

FORA

nek

cde

ane

erate

tree

uate

Rae

denied

2/POINTS

CAUTION

Since

the

unit

contains

precise

electronic

components,

never

attempt

disassemble

it.

For

servicing

contact

your

retailer

nearby

dealer.

careful

not

drop

the

unit

handle

roughly.

Avoid

operating

the

keys

roughly.

F :

Avoid

using

the

unit

extreme

temperatures

(below

O°C,

above

104°F

{

humid

conditions.

40’C).

Also

protect

the

unit

from

extremely

dusty

;

“To

clean

the

unit,

use

soft,

dry

cloth

slightly

damp

cloth

with

neutral

detergent

wipe

off.

Never

use

thinner,

benzine

type

solvents

alcohol

for

cleaning.

3/BATTERY

MAINTENANCE

decreases,

the

whole

display

darkens.

Battery

should

then

renewed

patter

owe

pee

oka

the

power

before

changing.

For

battery

specifications,

see

page

57.

sure

switch

OFF

Replacement

battery:

tide

open

the

battery

compartment

lid

the

back

the

unit.

Remove

dead

battery

and

insert

new

battery

with

the

plus

terminal

(flat

side)

top.

~10-

Replace

the

battery

compartment

tid.

Before

inserting

new

battery,

sure

thoroughly

wipe

off

with

dry

cloth

maintain

good

contacts.

Never

leave

dead

battery

the

battery

compartment.

Remove

battery

when

not

using

for

extended

period.

recommended

that

battery

replaced

every

years

prevent

the

chance

malfunctions

due

battery

leakage.

Note:

For

initial

operation

after

battery

replacement,

turn

the

power

switch

and

off

twice

(i.e.

ON-OFF-ON).

4/BEFORE

USING

THE

CALCULATOR

™

Correction

you

are

aware

data

entry

error

before

pressing

command

key,

oress

and

re-input

the

correct

data.

you

have

pressed

f2,

€or

mistake,

you

may

press

the

correct

key

immediately.

-y1-

See

Overflow

error

check

Overflow

error

indicated

the

“E'

sign

and

stops

further

calculations.

Overflow

error

occurs:

When

the

integer

part

answer,

whether

intermediate

final,

exceeds

digits.

However,

the

significant

digits

the

answer

are

given

and

the

decimal

point

indicates

that

the

true

decimal

position

digits

the

right.

When

the

integer

part

accumulated

total

the

memory

exceeds

digits.

When

number

divided

(zero).

When

function

calculation

financial

calculation

per

the

input

range

(see

page

56).

release

the

overflow

error

check,

press

the

(

key:

for

starting

new

calculation,

and

for

continuing

the

calculation,

which

clears

only

the

E”’

sign.

formed

with

number

exceeding

™

Auto

power

off

function

the

calculator

left

with

the

power

switch

the

position,

the

auto

power

off

function

automatically

turns

off

the

power

approximately

minutes,

thus

saving

battery

life.

Power

resumed

either

pressing

the

key

re-operating

the

ON-OFF

switch.

~12—-

5/BASIC

CALCULATIONS

5-1

Four

Basic

Calculations

EXAMPLE

OPERATION

READ-OUT

534123-63=113

5381238638

113.

0.456x(-89)+12=—-3.382

J456889H0126

“3.302

(56x3-89)+5.2+63

=7B.19230169aee.

5603089050)20638

_78.19230769

5-2

Constant

Calculations

EXAMPLE

OPERATION

READ-OUT

3+2.3=5.3

2(J

30038

6+2.3=8.3

See

EXAMPLE

OPERATION

READ-OUT

7-5.6=1.4

567

1.4

-4.5-5.6=

-10.1

40)5@8

2.3x12=27.6

12802038

(-9)x12=-108

—

108.

74=2.5=29.6

20/5674

85.2=2.5=34.08

17+17+17+17=68

1.77=2.89

1.77=4.913

1.7°=8.3521

85028

1708

16)

—_

-14-

BIN

ore

0:25

=0.0625

5-3

Percentage

Calculations

EXAMPLE

£9040

1500

2<.ae

sees

hee

180

Percentage

660

against

880....--

75%

15%

add-on

2500

...----+00

00:

2875

25008315t)ma

2875.

apeie[,

0-25)

Bik

0.0625

OPERATION

READ-OUT

150089128

scomesom

[7]

25%

discount

3500

...--

+++

0+"

2625

3500825%)

2625.

you

made

$80

last

week

and

$100

this

week,

what

the

percent

increase?

..----

—-15-

roomeoss

[25]

(%)

Nee

EXAMPLE

12%

1200

eee

144

18%

1200.0...

eee

eet

216

23%

1200...

eee

tts

276

Mark-up

What

will

the

selling

price

and

profit

when

the

purchasing

price

item

$480

and

the

profit

rate

the

selling

price

25%?

Mark-down

What

will

the

bargain

price

and

loss

ifa

$130

item

sold

loss

rate

the

bargain

price?

OPERATION

1200

96312

18%)

23%)

480

325%)

(Subsequently)

130N444)

(Subsequently)

Gad

~16-

READ-OUT

(Selling

price)

(Profit)

(Bargain

price)

(Loss)

99+4=

24.75

5-4

Memory

Calculations

The

contents

the

memory

will

retained

even

after

the

power

turned

OFF.

When

new

number

entered

into

the

memory

key,

the

number

stored

automatically

cleared

and

the

new

number

put

the

memory.

clear

the

contents,

press

sequence.

READ-OUT

EXAMPLE

OPERATION

53+6=

53068

23-8=

2388)

56x2=112

56E2m)

210.75

567-7

4123)

(2K3)+(2%3)—(2X3I=19

2933eBeo

-17-

eye

ere

wee

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