Radio Shack Pro-2032 Specifications download pdf (Page 31)

• How

Count

the

Number

Steps

A command or a

function

command in a program

uses

1 step.

A line number (numerical values

from

1 through 9999)

uses

steps.

Example:

1 INPUT A

Im--------------------------------

5 steps

'--'

\ I

'---'

2 I

8 =

SIN

E··------------------------------

7 steps

'--J

'---JL...J~

I...-.J

'--'

2 I I I I

100

"-----'

\ }

8="

; B

LED

------------···10 steps

'--..I

L..J

'----'

4 I I

Total 22 steps

5-2-1 Constants and Variables

Characters which

can

used

in BASIC

are

capital letters (A through

and numbers

through 9) and certain special characters

such

symbols, etc.

• Constants

The characters

used

in BASIC

are

capital letters

through Z), and numbers

through

9),

and certain special characters

such

symbols.

Example: S =

1tr

becomes S = 1! *Rf 2

the constant.

• Variables

A variable

a single capital letter

through

a single capital letter

with

"$"

attached (character variable).

Variables

are

also numerical values which

are

used

in a program. They

are

used

during

execution

make inputs

from

the keyboard

substitute calculation results which

were

initially

unknown.

Example: S =1Cr

becomes S =

*Rf 2

the variable.

Example: Y = 2 * X t 2 + 3 * X + 4

V~riable

va~iable

con~ant

Co~stant

Constant

Constant Variable

In other words, algebraic terms are "variables" and constant numbers

are

"constants".

In addition, there

are

character constants and character variables.

A character constant

a character string which

written

directly. A character string

a group

characters which

enclosed in quotation marks such

"123"

"ABC".

-28-

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 71 72

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Radio Shack Pro-2032 Specifications Page 31

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