HP HP-25 Benutzerhandbuch

HEWLETT-PACKARD

“The

success

and

prosperity

our

company

will

assured

only

offer

our

customers

superior

products

that

fill

real

needs

and

provide

lasting

value,

and

that

are

supported

wide

variety

useful

services,

both

before

and

after

sale.”

Statement

Corporate

Objectives.

Hewlett-Packard

When

Messrs.

Hewlett

and

Packard

founded

our

company

1939,

offered

one

superior

product,

audio

oscillator.

Today,

offer

than

3,000

quality

products,

designed

and

built

for

some

tne

wWorla

Most

discerning

customers.

Since

introduced

our

first

pocket

calculator

1972,

we've

sold

over

700,000

world-wide.

Their

owners

include

Nobel

laureates,

astronauts,

mountain

climbers,

businessmen,

doctors,

students,

and

housewives.

Each

our

pocket

calculators

precision

crafted

and

designed

solve

the

problems

its

owner

can expect

encounter

through-

out

working

lifetime.

calculators

fill

real

needs.

And

they

provide

lasting

value.

(Cover

background

courtesy

NASA)

HEWLETT

|zﬁ|

PACKARD

HP-25

Owner’s

Handbook

August

1975

00025-90001

Rev.

8/75

Printed

U.S.A.

©Hewlett-Packard

Company

1975

Contents

The

HP-25

Programmable

Scientific

Calculator

......

...

Function

Key

Index

...........

. .

HP-25

Memory

......

...

Programming

Key

Index

...........................

...

The

HP-25

Means

Painless

Programming

..............

Manual

Problem

Solving

.............

...

Programmed

Problem

Solving

.........................

Section

Getting

Started

.............................

Display

...

..o

Keyboard

...

Keying

Numbers

........

...

Negative

Numbers

......

... ...

...

Clearing

..o

Functions

...

Chain

Calculations

...........

...

Word

Aboutthe

HP-25.

............................

Section

Controlling

the

Display

......................

Display

Control

Keys

...

Automatic

Display

Switching...........................

Keying

Exponents

Ten

...........................

Calculator

Overflow

.........

...

Error

Display

...

Section

The

Automatic

Memory

Stack

............

The

Stack

...

Initial

Display

..ot

Manipulating

Stack

Contents

..........................

Clearing

the

Stack

...............

.. oo

The

KBY

One-Number

Functions

and

the

Stack

..................

Two-Number

Functions

and

the

Stack

..................

Chain

Arithmetic

........

...

Order

Execution

.........

...

Constant

Arithmetic

.............

...

Section

Function

Keys

...............................

LAST

Prefix

Clear

.......

...

Number

Alteration

Keys

..............................

Reciprocals

...

Square

ROOS

..o

SQUANING

Using

..o

Percentages

...t

Storage

Registers

...............

Trigonometric

Functions

.............................

Polar/Rectangular

Coordinate

Conversion

.............

Logarithmic

and

Exponential

Functions

...............

Statistical

Functions

...............

...

Vector

Summations

.........

...

Section

Programming

...............................

What

Isa

Program?

.........

...

... ..

...

Why

Write

Programs?

...............

...

Three

Modes

Operation

..........

.. .. ..

...

... ...

Introductory

Program

................

...

Running

Program

...................

...

GTO

..o

Writing

Second

Program

...........................

Interrupting

Program

Execution.......................

Branching

...........

...

Editing

Program

..........

...

... ... ...

...

Program

Applications

...................

...

Afterword

...

Appendix

Accessories,

Service,

and

Maintenance

101

Standard

Accessories

..................

101

Optional

Accessories

......................ciiii

101

Line

Operation

...................................

101

Battery

Charging

.....................................

102

Battery

Operation

............

...

103

Battery

Pack

Replacement

............................

104

Service

...

105

Temperature

Range

...............

... ...

............

106

Warranty

...

106

Appendix

Improper

Operations

...............

...

109

Appendix

Stack

Lift

and

LAST

...........

...

111

Function

Key

Index

Manual

RUN

Mode.

PRGM-RUN

switch

erov

set

RUN.

Function

keys

pressed

from

the

keyboard

execute

individual

functions

they

are

pressed.

Input

numbers

and

answers

are

displayed.

[F1X]Fixed

display.

Followed

number

key,

selects

fixed

point

notation

display

(page

26).

Scientiﬁc

display.

Followed

by a

number

key,

selects

scientific

notation

display

(page

27).

Engineering

display.

Followed

number

key,

selects

engineering

notation

display

(page

28).

Prefix

key.

Press

before

function

key

select

function

printed

gold

the

keyboard

above

function

key

(page

13).

BPrefix

key.

Press

before

function

key

select

function

printed

blue

slanted

face

function

key

(page

13).

Mean.

Calculates

mean

(average)

the

numbers

totaled

storage

(page

67).

exchange

Exchanges

contents

X-

and

Y-registers

(page

37).

E]Standard

deviation.

Calculates

standard

deviation

using

numbers

totaled

storage

registers

through

Roll

down.

Rolls

down

contents

stack

for

viewing

displayed

X-register

Reciprocal.

Calculates

reciprocal

the

number

the

display

(page

52).

Store.

Followed

number

key,

stores

displayed

number

storage

(0-7)

specified.

Followed

arithmetic

operator

key,

performs

storage

arithmetic

[=8Recall.

Followed

number

key,

recalls

value

from

storage

(0-7)

specified

into

the

displayed

X-register

(page

55).

[%]

Percent.

Calculates

Summation

of y

(page

54).

minus.

Subtracts

values

from

storage

registers

through

for

correcting

summation

entries

(page

69).

Summation.

Sums

numbers

X-

and

Y-registers

into

storage

registers

through

(page

66).

Clear

prefix.

Atter

[

cancels

that

key

(page

50).

IS\

lEY

Copies

number

displayed

X-register

into

Y-register

(page

16).

Change

sign.

Changes

sign

displayed

number

exponent

(page

14).

[cEG]Degrees.

Sets

decimal

degree

mode

for

trigonometric

functions

(page

59).

[FC]Clear

registers.

Replaces

contents

storage

registers

through

with

zeros

(page

56).

@Enter

exponent.

After

pressing,

numbers

keyed

are

exponents

(page

31).

Radians.

Sets

radians

mode

for

trigonometric

functions

(page

59).

Clear

stack.

Replaces

contents

X-, Y-,

Z-,

and

T-

registers

with

zeros

(page

37).

Clear

Clears

the

displayed

X-

zero

(page

15).

[GRD]

Grads.

Sets

grads

mode

for

trigonometric

functions

(page

59).

(-]

[=]

Arithmetic

operators

(page

16).

[E]

Natural

logarithm.

Computes

natural

logarithm

(base

2.718.

value

displayed

X-register

(page

63).

Natural

antilog.

Raises

(2.718.

)

the

power

value

displayed

X-register

(page

63).

Common

logarithm.

Computes

common

logarithm

(base

10)

value

displayed

X-register

(page

63).

Common

antilogarithm.

Raises

the

power

number

displayed

X-register

(page

63).

Rectangular

coordinate

conversion.

Converts

polar

magnitude

and

angle

X-

and

Y-

registers

rectangular

and

coordinates

(page

62).

Polar

coordinate

conversion.

Converts

rectangular

coordinates

placed

X-

and

Y-registers

polar

magnitude

and

angle

(page

62).

[sin]

Sine,

cosine,

and

tangent.

Calculate

the

sine,

cosine, or

tangent

value

displayed

X-register

(page

59).

Arc

sine,

arc

cosine,

arc

tangent.

Calculate

inverse

trigonometric

function

value

display

(page

59).

["TJinteger.

Leaves

only

integer

portion

number

displayed

X-register

truncating

fractional

portion

(page

51).

Fraction.

Leaves

only

fractional

portion

number

displayed

X-register

truncating

integer

portion

(page

51).

Computes

square

root of

number

displayed

X-register

(page

52).

[

Jcomputes

square

numberindisplayed

X-register

(page

53).

Raises

number

Y-register

the

power

the

number

the

displayed

X-register

(page

64).

Absolute.

Gives

the

absolute

value

the

displayed

number

(page

51).

Converts

displayed

decimal

hours

degrees

hours,

minutes,

seconds

format

(page

60).

Converts

displayed

value

hours,

minutes,

seconds

format

decimal

hours

degrees

(page

60).

Recalls

number

displayed

before

the

operation

back

into

the

displayed

X-register

(page

49).

Pi.

Places

value

(3.14159.

)

into

displayed

X-

(page

53).

HP-25

Memory

Automatic

Memory

Stack

Exponent

sign

Exponent

—_—

Sign

Mantissa

Storage

Registers

SCI

PREFIX

PRGM

REG

STK

[ECH

ENTEFH

i )

X<y

|og

—

(=)

(=8

sin

cos

tan

X#y

INT

Program

Memory

)

Automatic

»HMS

LASTX

PAUSE

Stop

»[

02 13

HEWLETT:-PACKARD

:gzg

"’\_/

/\/

Programming

Key

Index

PROGRAM

Mode

PRGM-RUN

switch

set

prom

run

Function

keys

are

recorded

program

memory.

Display

shows

program

memory

step

number

and

the

keycode

(keyboard

row

and

location

row)

the

function

key.

Active

keys:

program

mode

only

three

keys

are

active.

These

keys

cannot

recorded

program

memory.

Clear

program.

Clears

program

memory

GTO

instructions

and

resets

calculator

operations

begin

step

program

memory

(page

78).

Automatic

RUN

Mode

PRGM-RUN

switch

set

to:

rem

~un

Function

keys

may

executed

part

of a

recorded

program

individually

pressing

from

the

keyboard.

Input

numbers

and

answers

are

displayed,

except

where

indicated.

Pressed

from

keyboard:

Resets

calculator

operations

begin

step

program

memory

(page

78).

Executed

recorded

program

instruction:

Run/stop.

Begins

Run/stop.

Stops

execution

stored

program.

Stops

execution

program

running

(page

83).

to.

Followed

two-digit

number,

positions

calculator

that

step

number

program

memory.

instructions

are

executed

(page

82).

program

execution

(page

83).

to.

Followed

two-digit

number,

causes

calculator

execute

the

instruction

the

specified

step

number

next,

and

continue

program

execution

sequentially

from

there

(page

87).

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