Laser 128 - Variable Names

INTRODUCTION
, or they can take up new values as a result
of the program's execution. For instance, in
the next example, the value of I varies from
1 to 10.
] 10 FOR I= 1 TO 10
] 20 PRINT I
] 30 NEXT
When a BASIC program starts running , all
variables that have no explicitly assigned
values (as in the first example) are assumed
to be zero.
1.4 VARIABLE NAMES
BASIC variable names must start with an
alpha be tic letter. They can be up to 40
characters long, and can represent either
numbers or strings.
Strings are groups of letters and symbols.
The variable names cannot be re se rv ed
words - for a list of reserved words see the
Appendices - nor can they have reserved
words embedded rn them. For instance
ADIMMY contains the reserved word DIM,
and is not an allowable variable; and
DIMMY starts with the reserved word, and is
not permissible.
Reserved words include all the BASIC
commands, statements, function s, and
operator names .
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