Sharp MZ-700 Owner's Manual page 24

2.2.2 Variables
The word "variable" has a different meaning with BASIC than it does when used with regard to alge-
braic expressions. To put it in very simple terms, the variables of BASIC are "boxes" in memory for
the storage of numbers and characters (character strings). The types of variables used in BASIC include
numeric variables, string variables, and system variables.
Numeric variables
Numeric variables
11
Jl
A
V
String variables
XY$
Only numeric data can be stored in numeric variables.
System variables
~
f
SIZE
V
Names must be assigned to these variables in
accord~mce
with the following rules.
i)
A variable name may consist of any number of characters, but only the first two characters are
actually used by the BASIC interpreter to identify the variable. Further, the first character of the
variable . name must be a letter (A to Z), either letters or numerals may be used for subsequent
characters.
ii)
It
is not possible to use the names of BASIC commands and statements as variable names.
Correct variable names: ABC , XY, ABCD, Al2345
(ABC and ABCD are regarded as the same variable.)
Incorrect variable names : PRINT . .. ..... . . . (PRINT is a BASIC statement)
(Example :)
C@ . . . . . . . . . . . . . .
01
ariable names may not include special charac-
ters.)
1 0 A =
5 ... .. ......... ..... ..... ...
Stores 5 in variable A.
2 0 p
R
1
N T
A· ···· ···· ···
.·. Displays the value stored in variable A.
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