Texas Instruments TI Programmable 57 User manual

KEY

INDEX

This

indexed

keyboard

provides

quick

page

reference

the

description

each

key.

“

fa)

33°

hes

sas

fic

Abe

Pre

2-8

Rel

sum

Del

2-11

int

2-15

izel

[EE]

2-10

2-6

Db]

"Ds?

Deg

st,

Di:

—4

yon

Bee

IMPORTANT

Record

the

serial

number

from

the

bottom

the

unit

and

purchase

date

the

space

below.

The

serial

number

identified

the

words

“SERIAL

NO.”

the

bottom

case.

Always

reference

this

irformation

any

correspondence.

PROGRAMMABLE-57

Mode!

No.

Serial

No.

Purchase

Date

©Copyright,

Texas

Instruments,

1977

2-16

2-23

Key

Index

Chapter

Appendix

TABLE

CONTENTS

056

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16''5;

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inside

front

cover

Getting

Track

First

Look

the

Tl-Programmable

57.............

See

1-1

How

Does

Work

?...

0.0.0...

cee

1-2

PTEMBER

OUR

0r'ea

55.2

ora

erp

alerara

ware

eeoTig

ola

alia

RaMa

ITS

1-6

Firing

Tour

the

Keys

and

Functions

Section

Basic

Keys

and

Functions.

.............0-+.0---00-.

2-2

Section

Advanced

"Slide

Rule”

Keys.........

Goa

2-10

Section

Statistical

Functions

and

Keys.................00005

2-22

The

Trackmakers

Tour

the

Programming

Keys

LRN}

—

The

Learn

Key........

IRR

RRP

See

epider

—

The

Resel

Key.....

OER

IRIEL

NTE

ORR

ISG

—

The

Run/Stop

Key

..........0...00005

ive

sib

ecalneaas

23-3

Pause

—

The

Pause

Key

Sequarce

era

eiett

ORC

3-3

—

The

Label

Key

Sequence........

aaineiieeo

«<8

n—

The

“Go

to”

Key.

Sequence

...........ececceececees

3-5

rae

—

The

"Go

Step

Number”

Key

sequence

.......

3-5

[2nd)

Mita

—

‘Decrement

and

Skip

Zero”

Key

sequence.

........

3-6

INV]

pea

EEE

—

“Decrement

and

Skip

not

Zero”

...........

3-7

Conditional

Transters:

..s.28

<1...0

tele

ns:s

swiceiie

aivek

rk)

ERE;

SOSSNAS..

USE

Wasecaraieieterk

3-11

Program

Editing

Key

Codes...............00005

res

3-13

Steps

Writing

Program

.........

accoom'

wide

ies

hic

Oey

3-16

Development

Programming

Style

..........60.-

cece

see

eeee

3-17

Basic

troubleshooting.

ERIS

SUES

Abe

oni

peer

3-18

Examples

Onsale!

.....

AGAIN

aye

°F

SRST

nn,

4-1

GOR

OEE

0:0,

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ater

sacereora

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4-3

Factorial.

.....

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Spee

Sere

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ice

4-6

GonnbRmtiGnes

«5/5

Wate

0's

Zaps

Alec

lalal

prexeenrinreta

dre

oiercionene

aise

4-9

Evaluating

integrals

(Simpson’s

Rule)

altal'aiv

(al

NOLAND

mse

etiew

ens)

eveuave

4-11

ea,

ah,

AEROTEK,

ARR?

ORE

enn

4-15

PEO

Gainey.

.0:550;00:0:0

ino

aalYe

corse

Tae.

4-21

Battery

and

Operation,

OY,

Meo

.o:5-+:0:,4:0:9/000.6

eleltie

ase

arersimeieye

A-1

Case:

DIM

65-60

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A-4

BFE

iae

CARRERA

i556

osnce

taco

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Vor

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cowsiclietin

aindhastons

oie

eran

A-6

Displayed

Results

Versus

Accuracy...

.........0c0cceeveesccs

A-8

MOV

CONGG

siamo

biaaglii

peesaibiashewsloisiaiel

ecommerane

Cate

Gis

cen

A-9

FIRST

LOOK

THE

PROGRAMMABLE

The

calculator

you're

about

begin

using

really

straight

out

the

“world

science

fiction’

just

few

months

ago.

Only

the

most

recent

advancements

solid-state

technology

have

made

possible

put

such

easy

and

fun-to-use

bundle

power

right

the

palm

your

hand.

Easy

Use

quick

look

your

calculator

will

tell

you

that

it's

packed

with

lots

keys

and

features.

Introducing

you,

step-by-step,

each

these

keys

and

features

one

primary

purpose

this

book.

Above

and

beyond

all

these

features,

however,

one

overriding

characteristic

that

was

designed

into

your

Programmable

right

from

the

start:

It's

easy

use.

It's

easy

make

many

things

that

can

enormously

helpful

your

schoolwork,

extremely

powerful

your

career,

and

lot

fun

your

everyday

life.

It's

designed

working

tool

that,

working

together

with

the

information

contained

this

book,

becomes

system

for

problem-solving

and

key

discovery.

hope

you'll

enjoy

using

and

exploring

with

it.

STARTING

THE

ToP

learning

about

your

machine,

let's

start

right

off

with

the

nameplate

—

and

brief

look

why

called

what

did:

—

The

calculator

built

Texas

Instruments

Incorporated.

PROGRAMMABLE

—

you

wil!

seeing

few

seconds,

easy

“teach”

your

machine

help

solving

problems,

evaluating

formulas

and

building

“models”

your

world.

You

can

lay

down

set

Tracks’

that

the

machine

will

solves

problem.

word,

recognizable

some

folks,

that

describes

such

machine

already

around:

Programmable”.

This

machine,

however,

new

thing

—

with

whole

new,

easy

approach.

“programmable”

word

that

scares

you

—

don't

let

it.

Using

your

57”

cinch.

—

This

machine

the

latest

growing

family

Texas

Instruments

programmable

calculators,

and

it's

“following

the

footsteps"

another

machine,

our

SR-S6.

The

even

easier

machine

use

—

designed

for

especially

straightforward

use.

FIRST

LOOK

THE

PROGRAMMABLE

How

Does

Worx?

Simple!

For

starters,

take

out

the

calculator

and

check

out

the

“heit’’

this

little

device.

Light,

isn't

it?

That's

because

most

the

important

things

inside

this

calculator

are

handled

with

device

that

the

folks

call

“SOAP”

bar.

Now,

turn

on!

zero

the

display

tells

you

that

you're

ready

for

action.

(If

the

zero

doesn't

come

on,

the

display

seems

doing

‘funny’

things,

don’t

worry.

The

battery

just

needs

charging.

Turn

the

machine

off,

plug

your

charger

and

wait

few

minutes;

then

you'll

set

go.)

Let's

get

right

into

with

simple

example.

Imagine

this

situation:

You've

just

won

rather

weird

award

from

major

radio

station.

You'll

given

2¢!

This

money

will

doubled

every

day

for

three

weeks

(21

days).

—

you

can

have

$5000

cash

immediately.

You

have

two

minutes

make

decision

—

the

announcer

waiting.

(This

actually

“old

and

classic”

problem.

Watch

how

your

calculator

helps.)

Basically,

you

can

have

your

machine

read

out

for

you

just

how

your

money

will

‘grow’.

Here's

how:

Over

the

upper

left

hand

corner

your

machine,

one row

down

from

the

top,

key

that

the

real

“jewel”:

it's

labelled

ke)

———————>

This

the

"learn"

key,

and

when

you

press

one

time,

your

calculator

begins

learn

and

remember

whatever

you

put

next.

When

you

press

{RN}

again,

you're

telling

the

calculator

that

you've

“taught”

everything

you

want

know

for

now.

The

calculator

stops

learning

this

point,

but

remembers

all

the

steps

you

taught

it.

(The

key

ON/OFF"

button

for

teaching

your

calculator

things.)

press

[RN],

(At

this

point

your

display

changes

00.)

Now,

you

decide

take

the

“2¢

option’

the

contest,

you'll

doubling

your

money

for

days,

and

you

want

watch

grow.

this,

Press

=).

1-2

FIRST

LOOK

THE

PROGRAMMABLE

Now

another

“little

jewel’’

—

right

above

the

key

labelled

you'll

see

the

word

Pause”

written

the

face

the

machine.

Whenever

word

function

printed

above

key

—

the

face

the

machine

instead

right

the

key

—

that's

called

"second

function’.

Second

functions

allow

pack

all

the

power

can

into

your

calculator,

without

with

keys.

use

second

function,

just

push

the

Gad]

key

—

the

upper

left

hand

corner,

and

then

the

key

right

below

the

second

function.

this

book,

will

use

keys

with

black

background

Ill

indicate

second

functions.

So:

Press:

(20d)

(You'll

press

@ed)

and

the

key

labelled

“SST”.)

The

key

tells

your

machine:

“Stop

for

moment

and

let's

see

what's

going

on”.

One

thing

—

want

keep

doubling

our

money

again

and

again.

let

your

machine

know

this,

just

find

the

(reset)

key

(close

the

lower

left

corner).

This

key

says,

"go

back

and

again,

from

the

top’.

PREss:

You

have

taught

your

machine

all

needs

know

this

point,

press

again,

and

press

again

sure

everything

back

the

beginning.

Now,

watch

your

2¢

“grow”

—

first:

Enter

2¢

your

calculator:

Press

[*]

(0)

(2\\The

display

should

read

0.02.)

this

point,

your

calculator

ready

“grow

your

money”

—

each

display

readout

will

double

the

value

before

it.

You'll

start

things

going

and

count

the

days

they

by.

You'll

have

0.04

for

the

first

day,

etc.

When

you

reach

days,

the

cash

value

the

display

what

you

will

win.

OK.

—tostart

the

machine,

just

press

the

RUN/STOP

key

—

R)—

the

lower

left

key

the

board.

Keep

your

eye

the

display,

count

out

days,

then

press

the

PA)

key

again

and

hold

down

for

moment.

day

you'll

have

won

$41,943.04!

Tell

the

announcer

you'll

take

the

“2¢

option’.

1-3

eee

FIRST

LOOK

THE

PROGRAMMABLE

ConGRATULATIONS!

this

little

example,

you

have

already

covered

many

the

key

points

that

make

your

programmable

calculator

easy

and

fun

use:

The

[RN]

key

lets

you

“teach

the

calculator’.

(You

can

teach

steps,

and

there

lot

can

learn

—

any

those

“steps”

usually

equivalent

any

keystroke,

but

some

steps

can

involve

two

keystrokes.)

The

Ist]

key

starts

things

back

the

beginning.

The

key

allows

you

control

the

action

—

stoppingand

starting

where

you

please.

Makinc

Tracks

One

way

looking

how

the

calculator

works

think

little

“railroad”

—

where

you

can

“make

tracks"

for

the

machine

follow:

Take

the

number

the

display

Pause

and

let's

see

the

result

2eg

hens

eeew

back

and

again

(reset)

s |

The

“train”

this

track

has

special

name

—

the

"'Pointer’”’

(or,

technically,

the

program

pointer),

Each

time

this

train

passes

operation,

the

calculator

follows

the

instruction

performs

the

operation

listed.

The

calculator

effect

pushes

its

own

buttons

for

you

—

the

exact

sequence

you

tell

it.

When

you

push

the

@il

key

(or

the

train

comes

St)

as-part

program),

the

train

immediately

goes

back

the

beginning

—

the

first

step

(step

number

00),

and

starts

over.

get

the

“train”

moving,

stop

once

it’s

moving,

you

just

use

the

(‘run/stop")

key.

1-4

FIRST

LOOK

THE

PROGRAMMABLE

the

example

you

considered

earlier,

when

you

press

RA),

the

machine

simply

pressed

its

own

buttons

and

doubled

the

display

value:

and

would

have

kept

doing

this

for

quite

awhile

—

had

you

not

stopped

things

after

“go-rounds”

with

the

P&lkey.

(As

you'll

see

later

on,

these

repetitive

go-round”

situations

your

calculator

—

and

larger

computers

—

are

called

"loops”’.)

this

point

you're

already

well

into

many

the

features

that

make

your

programmable

calculator

special.

Actually,

we've

explained

enough

here

that

you

can

now

explore

all

sorts

programs

your

own.

We'll

naturally

show

you

all

the

ins

and

outs

your

machine

with

how

solve

problems

and

run

programs

using

it,

later

the

manual.

But

don't

afraid

explore.

There's

really

nothing

it,

and

you

can’t

hurt

the

calculator

pressing

any

combination

buttons.

Your

calculator

can

easily

programmed

run

through

any

set

keystrokes

(up

steps)

which

you

could

handle

manually

from

the

keyboard.

Just:

Push

{tRa)

eEnter

your

keystrokes

(You'll

need

use

RS]

your

last

step

you

want

things

repeat,

your

last

step

you

want

things

stop

after

one

time.

Also,

you

need

enter

number

midway

program,

want

see

some

intermediate

result,

just

put

k#)at

that

point.)

¢Press

(tRN)

again

¢Press

‘

this

point

you've

programmed

your

calculator.

run

the

program,

just:

eEnter

the

number(s)

you

want

work

ePress

1-5

PRACTICAL

CASE

We'll

showing

you

many

ways

use

your

programmable

calculator

for

variety

school,

home

and

recreational

applications.

You'll

see

with

each

example

the

ease

and

power

the

machine

can

bring

everyday

mathematics.

Let's

take

quick

look

practical

case.

this

situation

let's

say

that

you

(or

someone

you

know)

ran

rather

large

bill

(say

$500)

credit

card

account.

Credit

cards

are

convenient,

but

they

really

“sock

you”

with

interest

charges

—

typically

1.5%

per

month.

You'd

weigh

several

alternatives

payments

and

get

picture

what

the

best

course

action

would

be.

Paying

back

the

cash

right

away

would

the

best

way,

course,

but

you

might

not

able

afford

it.

However,

you

string

the

payments

out

over

long

period,

would

cost

quite

bit.

Your

calculator

can

help

speedily

letting

you

calculate

the

alternatives,

For

right

now,

let's

say

you'd

know

what

your

monthly

payments

would

you

paid

off

months;

and

how

much

you'd

paying

interest

each

case.

Here's

Att

You

Do:

First,

turn

your

calculator

off

and

—

clear

everything—

and

then

push

the

following

keys.

(Remember,

we'll

covering

all

the

details

later

—

for

now

just

see

what

your

calculator

will

for

you!

Push

each

key

carefully.)

(At

this

point

your

display

should

read

00.

doesn’t,

turn

your

calculator

OFF

and

ON,

and

back

and

re-key

carefully.)

Now

press:

1-6

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