Chapter 3. Data Constants And Variables
40
BASIC CHARACTER SET
The BASIC character
set
is
used
to
represent arithmetic and character
data
entered
from
the
keyboard
as
data
constants and variables.
The characters
that
have syntactical meaning
in
the BASIC language fall into three
categories: alphabetic, numeric, and special characters.
Alphabetic Characters
The alphabetic characters
in
BASIC are
the
uppercase letters
of
the English alphabet
(A-Z) and the following three characters called alphabet extenders:
@ (the commercial
at
sign)
# (the number
or
pound sign)
$ (the currency symbol)
Numeric Characters
The numeric characters
in
BASIC are the digits 0 through 9.
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