HP HP-65 User manual

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Quick

Reference

€10](e

This

booklet

primarily

intended

for

reference

use

after

you

read

the

HP-65

Owner’s

Hand-

book.

The

Procedures

section

(f1-110)

brief

digest

for the

user

who

needs

quick

re-

view

the

important

operating

proce-

dures.

The

Key

Dictionary

(11-67)

provides

easy

access

the

details

the

individual

key

operations

and

switches.

All

symbols

the

HP-65

keyboard

are

presented

alphabetic

order

the

dictionary;

non

alphabetic

symbols

(c.g.,

,[7])

are

the

front

(f11-714).

genceral

Index

provided

the

end.

Procedures

(11-110)

W/PRGM-RUN

Switch

Set

to:

mmm

RUN

position

calculate,

run

program,

read

pre-programmed

card.

Set

to:

PRGM

mmm

position

clear

program

memory,

key

program,

to edit a

program,

write

program

magnetic

card.

Doing

Arithmetic

the

Stack

Compute

Pressing

8—-2=6

ENTER#

8+-2=4

[ENTER%

-Io

(4X35)

(2+43)

shown

below.

Compute:

—6

—

—2

using

the

keys

Contents

Stack

Registers

20|

200

223

Key

(4]

[5)

™

[2]

(3]

NOTE:

ENTER%

here

abbreviated

-2

Data

Entry

Entering

Negative

Numbers.

Press

[CHS

(change

sign)

after

keying

the

positive

value.

Example:

key

—12,

press

[CHS

Entering

Big

and

Small

Numbers

(Scientific

Format).

Method:

Key

mantissa

Press

CHS

ncgative

number

Press

[EEX

Key

exponent

Press

[GHS

exponent

nega-

tive.

Example:

key

1075,

press

EEX

CHS

Correcting

Mistakes.

Press

[€LX

and

rcenter

the

number.

PRINTED

U.S.A

HEWLETT-PACKARD

COMPANY,

1974

Procedures

Display

Controlling

Display.

display

rounded

fixed

decimal

places,

press

BRg

[n]

(where

n—=20,1,...,9).

display

scientific

notation,

rounded

places,

press

BEg

[n].

Display

can

also

set

program.

Blinking

Display.

Blinking

display

occurs

when

illegal

operation

attempted

(Example:

—

0).

Depressing

any

key

stops

the

blinking

without

doing

the

key

function.

Blinking

occurs

when

program

card

misread

(or

blank).

See

the

Key

Dictionary

for

the

limitations

the

follow-

ing:

[n],

[Lod),

(],

[sw],

[cog],

[oms+

(cowms],

[=oct],

5],

Multiple

Decimal

Points.

The

display

also

indicates

low

battery

power

(all

decimal

points

light

up).

Prefix

Operations

Performing

‘“Gold”

Functions

(Upshift).

Rule:

Prefix

gold

function

keys

the

func-

tion

[

the

inverse.

Example:

Cal-

culate

log

(100)

pressing

100

Example:

Calculate

antilog

(2)

100

(the

inverse)

pressing

[

[LOc].

Performing

“Blue”

Functions

(downshift).

Prefix

blue

function

keys

[@l.

Example:

Calculate

120

pressing

[]]

Correcting

Cancelling

Prefix.

correct

wrong

prefix,

merely

press

the

correct

prefix.

cancel

prefix,

press

[PREr0C]

Other

prefix

keys

are

BEg,

(€5

16.

Angular

Mode

Operations

involving

angles

(namely,

[SIv],

,[72N],[F=7])

assume

the

angles

the

units

(degrees,

radians,

grads)

the

prevailing

angular

mode

sct

(or

power

on),

[RAD],

[GRD].

360

degrees

—2r

ra-

dians

400

grads.

Converting

from

One

Angular

Mode

Another:

DEG DEG

/7.

Storage

Operations

Storing

Number

Addressable

R,.

Key

number

stored.

Press

[§§@

[n]

(where

digit

. .

9).

Recalling

Num-

ber

from

R,.

Press

[B8E

[n]

(where

digit

9).

Procedures

Doing

Storage

Arithmetic.

Subtraction.

(r,

—

R,):

810

[n].

Addition,

(r,

R,):

[n].

Multiplication.

(r,

—>

R,):

§%0

[n].

Division.

(r,

—

R,):

§%0

[n].

where

[n]is

digit

. .

unchanged

these

operations.

Clearing

Registers

Press

clear

Press

[

[57¢]

clear

entire

stack

(X,

and

= Press

clear

all

storage

registers

(R,,...,Ry)

Power

clears

all

registers.

Programming

Program

Memory.

Used

contain

user’s

stored

program.

Capacity:

100

locations

Top

above

1st

location.

Bottom

last

location

The

Pointer,

internal

part

the

calculator,

determines

which

memory

location

executed

displayed.

W/PRGM

Mode,

keystrokes

are

stored

memory

codes:

The

address

for

top

memory

00.

The

codes

for

keys

0-9,

are

—

09.

For

other

keys,

the

code

denotes

row

and

column.

Example:

Code

for

(row

column

84.

User

Defined

Functions.

The

top

row

keys

are

used

call

user

defined

function.

When

the

calculator

turned

on,

default

functions

are

de-

fined

shown

the

window

above

the

top

row.

Alternate

functions

may

keyed

read

from

magnetic

program

card.

Pressing

top

row

key

finds

the

function

and

executes

it.

Write

Function:

identify

the

beginning

followed

the

top

row

key

that

call

it.

End

the

function

with

GI].

Example:

((ENTERY

ENTER®

%))

The

keys

parentheses

calculate

x*,

Keying

function:

Set

W/PRGM-RUN

switch

W/PRGM.

Press

'f|

"7V

clear

program

memory.

Press

the

keys

the

order

shown

([ERA

the

sample

case).

you

make

mistake,

press

(to

delete

the

error)

and

press

the

correct

key.

execute

the

function

(from

key-

board):

Set

W/PRGM-RUN

switch

RUN.

Press

the

appropriate

top

row

key.

For

the

sample

case,

compute

—

press

2[@;

compute

—

27, press

etc.

user

defined

function

can

also

executed

from

program

merely

including

the

corresponding

top

row

key

the

program.

Revising

(Editing)

Program.

move

the

pointer

the

top

memory,

press

LRl

RUN

mode.

move

the

pointer

label,

press

(in

RUN

mode)

[f]]

[n]

where

the

same

digit

top

row

key

in [n]

(the

label).

step

through

your

program,

use

W/PRGM

mode

(See

156).

You

will

see

the

successive

pro-

gram

codes

the

display.

insert

step

below

the

currently

displayed

step,

just

key

the

new

operation

W/PRGM

mode.

(See

132).

delete a

step

correct

mistake,

press

W/PRGM

mode

(See

121).

Both

overflow

and

underflow

will

stop

program.

1110.

Using

Magnetic

Cards

Reading

Pre-recorded

Card.

Set

W/PRGM-RUN

switch

RUN.

Insert

the

card

the

right

lower

slot,

the

card

does

not

read

properly,

display

will

flash

and

program

memory

will

cleared

(but,

with

effect

registers).

Press

and

reinsert

the

card.

Recording

(Writing)

Program

Card.

Set

W/PRGM-RUN

switch

W/PRGM.

Insert

unprotected

(unclipped)

card

right

lower

slot.

Protect

the

card

clipping

the

notched

corner.

Key

Dictionary

(711-167)

This

section

contains

reference

entries

for

all

keys

with

their

associated

symbols.

addi-

tion,

the

following

entries

are

included.

Insert,

1132.

Last

934.

Merged

Codes,

739.

OFF-ON

Switch,

§43.

Stack

Lift,

157.

W/PRGM-RUN

Switch,

162.

2osas

‘

2@oe2o

EE3A

ETA

)

“

STk

PREFIX

111

¥,

Arithmetic

Operations.

Calcu-

late

respectively:

—x),

x),

X),

=x).

= =

Contents

<result-X

Last

For

storage

arithmetic,

see

59.

112

[0]

. .

[9]

Digits.

Digits

are

used:

enter

data

(73),

specify

registers

(159,

1149),

label

program

steps

(135,

131),

specify

displayed

decimal

places

(124).

113

[+]

Decimal

Point.

The

(-]

key

also

used

specify

fixed

decimal

display

(724).

Inserts

(3.141592654)

into

the

stack

= &

B.8.8.0

Top

Row

Keys.

When

used

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