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LEFT$

LEN

LET

LIST

LOG

LOMEM:

MID$

NEW

NORMAL

NOTRACE

ON

...

GOSUB

ONERR

GOTO

SUMMARY

OF

BASIC COMMANDS

Returns

a •

specified

number

of

characters

from

the

left-hand-side

of

a

chatacter

string.

To

return

the

number

of

characters

in

a

string.

To

assign a value

to

a

variable.

To

display

on

the

screen

the

BASIC

program

that

is

currently

in

memory.

To

calculate

the

natural

logarithm

of

a

specified

value.

To

set

the

lowest memory

location

available

to

a BASIC program.

To

return

a

specified

number

of

characters

from

within

a

given

string.

Clears

the

current

program

from

memory

and

clears

all

variables

associated

with

it.

To

return

the

video

display

fr

om

either

inverse

or

flashing

modes to

the

default

mode.

To

stop

program

statement

numbers

from

being

displayed

as a

program

is

executed.

To

direct

the

program

flow

depending

on

the

value

of

an

expression.

To

avoid

halting

the

program

when

an

error

is

encountered.

A -35

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