Laser 128 - Constants

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SOME BACKGROUND IN BASIC PROGRAMMING

The

line

numbers

must

be

in

the

range

of

0

to 63999.

They

relate

to

the

order

in

which

a

BASIC

program

is

stored

in

memory,

and

the

interpreter

always

executes

a

program

in

the

sequence

of

the

line

numbers

(unless

the

program

branches

otherwise.)

2.2

CONST

ANTS

As

their

name

implies,

these

are

values

that

do

not

change.

In

BASIC

they

can

be

either

numeric

or

string

values. Some

string

constants

are:

"$64,000"

"May

the

Force

be

with

you"

There

are

two

types

of

numeric

constant.

I.

Integer

constants

Whole

numbers

in

the

range

from

-32767

to +32767.

2.

Floating

point

constants

Positive

or

negative

numbers

that

are

represented

in

exponential

form.

These

are

made

up

of

three

parts:

the

fixed

point

part,

in

decimal

form;

the

E

which

signifies

exponen

tia

ti

on

and

the

exponent,

which

must

be

an

integer.

The

range

of

values

for

floating

point

constants

is

from

IE-38

to

8.5E + 37.

Example:

256.1024E-7 = .00002561024

4096E7= 40960000000

11-13

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