HP 35 Owner's Handbook Manual

HP-35

HP's interest

in

computation

evolved as a na tural

extension

of

our tradition

al involvement in measure·

ment

problem

solving. At

an

early

date.

HP

recognized

the growing

need

for a family

of

computational

products

uniquely designed

for

ease of

interface

with

scientific

instrumentation.

In

1966

we

in t

roduced

the

fir st digital

minicompute

r

specifically designed 10

meet this

need.

Soon

after,

we

f

ollowed

up with

our fir

St

programmable calcu lator .

Fr

om

these

modest

beginni

ng<;.

HP

has

now

become

an

acknow

ledged leader in the field

of

co

mputational

problem

solving. Over

10,000

HP programmab

le cal·

culators

and

more

than 3000

HP

digital

compu

ters are

now

at

work

in

a wi

de ran

ge

of scientific. industrial,

and

educational appl i

cations.

Their effectiveness is

fu

rther

enh

anced

by

a

comple

te line of peripherals -

ranging fr

om

digital

tape

and

disc drives

to

card and

tape

readers, printers,

and

plotters.

Now we've

coupled

our

experience in scientific

pro

b-

lem solving

and computatiooal

technology

to

brin g

you

a

new

dimensio n in personal

computing

- -

the H

p·35

Pocket

Calculat

or.

HEWLETT

i PACKARD

lUll

~

II

~

II

iii

II

11

0

11

0.

• •

•

@

6

III

7

--..!L.J.

~

4

5

~

@

II

L!-

ei..;

..

0

DISPLAY

~

POWER

ON-OF F

SWITCH

@

FUNCTION

KE

YS

0

CONT

ROL

KE

YS

0

MEMORY

KEYS

(i)

ENTRY

KEYS

f)

CLEAR KEYS

(i)

A

RITH

MET

IC KE YS

HP-35

HEWLETT.PACKARD

10900

WOLFE

ROAD,

CUPERTINO,

CALIFORNIA,

95014

FORE

WO

RD

To

g,~e

you

more

computing

power,

your

HP·35

works

in

a

consistent

and

natural way

that

may

be

slightlv differ·

ent from

pre~iou

s

calculators

you

have

operated.

So

even

if

you

are

an

eNd

hand

at

using calcuiatOfs,

you

will find

it

worthwhile

to

read this

little

book.

Beginners,

too.

will

find

the

step

bV

step

explanation

easy

to

follow.

S

HIRT

POCKET

PO

WER

Our object

in

developing the Hp

·35

was

to gIve

you

a hi(fl

preciSIon

portable

electronic

slide rule. We

thou~""II

you'd

like

to

have

something

only

ficllonal

heroes

like James

Bond, Walter

MitIY

or

D,ck Tracy

are

supposed

to

own.

The HP·35 has far

more

com

puting

power

than

ten

digit accuracy exceeds the

precIsion

to

which

most

of the phYsical

connants

of the

universe are known. It wil l handle

numbers

as small as

10-

99

and

up

to

10

99

.

Jnd

au

toma

tically places the

decimal

point for

you

. It

is

the first p

ocket

cal

culato

r to

provi

de YOU

with tran:;.cendental f

unctions

like logarithms

and sines

and

cosines .

The

operational

$lack

and

the

reverse "Pol i

sh·'

(Lukasiewicz)

notation

used

in

the HP.35

are the

most

efficient way

known

to

computer

:;.cience

for

evaluating m!lIhematical expressions.

The HP·35 was designed with

yOU,

the

user,

In

mind.

We

spent as much time

on

the

keyboa

rd layout.

on

the ch

Oice

of functions,

and

on

the styling as we did

on

the

electronics.

The

speed

and

conveni ence with whi

ch you can arrive

at

a

Solution

to a problem

is

unparalleled . V

ou

will find

that

fewer mistakes

occur

when

computations

are easier

to

make . Y

ou

will also find yoursei f performing calculations

you

did nOt

do

bef ore. They fall

into

Thr

ee

categor

ies:

firsT,

Those

calculations

in

your

own field

that

were

avoided in favor

ot

an

educated

guess. The ability

to

perlorm

complex

calculations

whereV(!r you

are and

what

-

ever

me

situation

will

enhance

your

prolessional staTure.

The

second

category consists of calculations indirectly

your

profession -

computing

the

return

on

an

inveslment, reconciling

your

bank

account,

pursuing

your

hobby

with professional precision,

etc.

The last categOfY

contains

thO$!!

expioratOfY calculations t

hat

you

do

for

lun.

They

arise

when

someone

asks

"Old

you

know

...

?".

For

example,

did

you

know

thai one cubic

mile of air weighs

more

than 5 million tons?

Did

you

know

that

a man

running

a 4--minute mile

turns

100 yards in a

little

more

man

1

3.6

seconds?

Did

you

know

that

355

/ 1

13

is

an

excellent

approxi-

mation

to

n?

ii

Why

not

check

and

see just

how

close

356/113

does

approximate

11?

Although

the

rest

01

this

manual must

be

read,

JUSt

between

the

IWO

of us,

you

can't

hurt

Ihe

calculator

by sliding

the

power

switch

to

ON

and

pressing

a lew keys,

To

check

the

appr

oxima

tion, key

in

355,

then

press

IDJiiIl

and

key in

the

denominator,

113, N<m press

a

to

gel Ihe

quolienl,

Theapproximation

is

n<min

the

display, Let

us

now

subtract

the

Irue value

of

11

!to

len

significant digits)

from

the

appr

oximatio

n.

Press @

and

11:1

It's

closer

than

one

would

think

12.66 x

10-7).

To

f,nd

the

percent

error,

divide

thos

difference

bv

11

and

mu ltiplv by 100.

(@'

1:1

' 100, f3 ), We n

ow know

tha

t 355/113

approximates

71'

to within

8.47 millionths

of

one

percent,

!It

makes

22n

look

pretty

5a(U T

wo

final

comments:

<D

it

's

easy

to remember the

approximation

Deca

use it

,s

made

by

dupic

ating

the first three

odd

numbers

and

insert,ng a

div'sion

si!1l

in

the

middle:

113}355;

®

you

have

just

evaluated

the

expression

1355/1 13 -

7l'l

X

1100/71').

Congratulation

sl

By

the

way,

switch

the

calculator

off

and

put

,t

iNlay,

(You

are

nOt

supposed

10

know

how

to

work

il

, , .

vet).

iii

TABLE OF

CONTEN TS

SECTION

1

I

NSTANT AR

ITHM

ETIC

SERIAL

CALCULA

TI

ONS

3

SUMS

OF

PRODUCTS

4

PRODUCTS

OF

SUMS

5

THE

OPERATIONAL

STACK

6

SOME

SIMPLE

PROBLEMS

8

POWERS

OF

NUMBERS

9

PROBLEMS

IN FINANCE

"

BIG

AND

LITTLE

NUMBERS

"

NEGATIVE

NUMBERS

"

MORE

MEMOR

Y

"

REARRANGING

THE

STACK

'6

LOGARITHMS

AND

TRIGONOMETRY

"

SECTlON

2

OPERATING

LIMITS

"

ACCURACV

"

OVERFLOW

&

UNDERFLOW

22

SC

IEN

TIF IC

NOTATION

22

IMPROPER

CALCULATIONS

22

TEMPEnATUnC

RANGES

23

BATTERY

OPERATION

23

RECH

ARGING I A.C.

OPERATION

24

BATTERY

PACK

REPLACEMENT

26

ACCESSORIES

27

S

TANDARD

27

OPTIONAL

27

SERVICING

28

LOW POWE

R

28

BLANK

DISPLAV

28

WARRANTY

28

IN

WARRAN

TV 28

O

UT

OF

WARRANTV

29

SHIPPING INSTRUCTIONS

29

SEC

TIO

N 3

SAM

PLE

PROB

LE

MS

30

SOLUT

IO

NS

32

AN ALGORITH

M

34

Hewlett-Packard

ships

your

HP-

35

lully·assembled,

with

banery

pack

10

place,

and

ready

10

operale.

W"h

the

battery

charger

disconnected,

slide

the

power

SWItch

to

ON.

You

should

see a

~ero

and a decimal

point

dIsplayed.

If any Other

indication

is

present,

~ee

SERVIC lNG, page 28.

seC TION 1

I

NSTANT AR

ITHM

ETI

C

In

the HP-35,

arithmetic

aIlswers appear immediately

after pressing a

G ,

1:1

,

E3

or

G key.

As

in

on ndding

machine,

where

the a key

ad

ds the last

entry

to

what.

ever

is

alrendy in the machine, and the

1:1

key

subtracts

this

la'St

entry,

so

also, in the HP·

35,

the

13

key multi.

plu~s

what's

in the

machine

by

the

last

entry

and

the G

key dIvides

by

the

lasl

entry.

BUI

at the

start

we've got

to

gel the li($t

number

into

the

machine.

To

do

this

you

key in Ihe first

number

and

press

Now key

in

the

ne xt

number and

then

press

Try these

examples.

It

is

no t necessary to clear th e

machine

between

problems,

but

if

you

make

an

entry

mistake, press m jCL

EAR

XI

and

enter

the

number

correctly.

Toocld3to12

To

subtract

3 from

"

Press

'"

Press

'"

OJ

1.

OJ

lID

12

.

lID

12

.

am

12

.

am

12

.

@)

3.

@)

3.

II

15

.

iii

9 .

1

2

To

multiply 3 times 12

To

d,v,de 3 irllO 12

Press

s..

Prcss

""

CD

lID

"

lID

" .

EliIl

" .

EliIl

"

III

3

III

3.

EI

36.

1:1

,

Notice

that

In

thc

four

examples:

•

BOlh

numbers

!operands) are in

the

machine

before

you

press D,

1:1

,

EI

or

=

• Pressing

the

D ' = '

EI

or

= key causes

the

addll;on,

subtraction,

mUltiplicatIon

or

division

10

oc.:::ur

immediately

and

the result

to

be

d,splayed.

The

EliD

key repeats the

numbcr

displayed to a

socond inlernal register

1a

ploce Ihat holds

numbers!.

The

dIsPlay blinks

to

show

you

Ihis has

happcncd.

When

you

now Cnter a new

number,

the Hp·35

automa

tically clears

the display

01

the

old

one.

But

if

you

wanled

10

double

the old

number,

you

don't

need

to

enter

it again,

just

press D

after

the !mIlD Or,

if

you

wanted

10

square It, Just press

EI

.

Try

these examples.

To

double

3

Tosquorc

3

Press

s."

Press

s."

III

3

III

3

EliIl

3

EliIl

3

D

6

EI

9

SECTION

1

SERIAL

CALCULAT

ION

Whenever a

new

number

is

enlered

aher

any

calculallOn.

the

Hp·35

performs

an

automat

ic

immJ

before

iIC-

ceptlng the

new

number.

This

means

thut

the

und

Ihe

new

ent

ry

are

both

in

posilion

for

the

o!X]ration

.

Find

the sum

of the

first

five

odd

numbers

Press

""

(jJ

EDl

1.

@

3.

II

4.

lID

5 .

II

9.

II)

7

II

16

.

lID

9

II

75

.

Find

the

product

of

the

first

five even

numbers

Pr

ess

""

®

,

EDl

,

[4]

,.

£I

8.

lID

6 .

£I

".

lID

8

£I

3"

(jJ1Q)

, 0

£I

3840

If

you

~re

calculat

ing ((2 I 3

)14 + 5)

,6

by Ilarld.

you

wo

uld

fir

st

add 2 and

3.

then divide the

sum

by

4.

add

5

to

th

e

quotient

and

finally

mu

ltiply by

6.

This

is

exocTly

whaT

you

do

on

the

HP-35:

3

((2 +

3)/4

+ 5) -6

Pre

55

S

oo

Comments

III

2.

I!mIl

2.

@]

3.

a

5.

Add

2 and 3

(!)

••

CiI

, .

25

Div,de

~he

sum

by

<1

lID

5.

a

6.

25

Add 5 to

the

quotient

lID

6.

EI

37

. 5

Multiply

by

6

SU

MS

OF PRODU CTS

Suppose

you

sold

12

,tems

at

$1

.58

each.

8

'tems

at

52.67

each

and

16 '

tems

at SO.54 each. Tl,,,

lul<ol

,.,

price

'S

(12 x 1

.58)

+ (8 x 2.671

~

(16 x 0.541

Your

HP·

35

lets

you find the answer

without

writing

down or

storing

intermedia

te

results.

Press

Soo

Comments

"

" .

I!mIl

" .

1.

58

L

58

EI

" .

96

(12 x 1.581

•

••

I!mIl

••

2.67

2.

67

EI

"

36

(8 x 2.671

4

HP 35 Owner's Handbook Manual

Specifications and Main Features

Frequently Asked Questions

User Manual