Radio Shack TRS-80 PC-3

V(0,0)
V(1,0)
V(2,0)
V(0,1)
V(1,1)
V(2,1)
V(0,2)
V(1,2)
V(2,2)
This extra element, or row and column, is often used by programmers to hold partial products during computations. For example,
you might total the elements of the X array by summing them into X(0).
The form and use of the DIM verb is covered in detail in Chapter 8.
Note: The A array does not have the extra 0 element and does not need to be DIMensioned (see section below on Preallocated
Variables).
String Array Variables
String array variables have the same relationship to numeric array variables as simple string variables have to simple numeric vari-
ables
-- their names are the same except for the addition of a dollar sign:
C$(5)
The fifth string element in the array C$
With string arrays,
the length of each string will be 16 characters unless you specifically choose a different length in the DI M
statement.
DIM X$(12) *8
DIMensions a string array with 12 elements, each a string 8 characters long.
Chapter 8 details the use of the DIM statement.
Preallocated Variables
Some of the variables which you will use most frequently have already been allocated space in the PC-3's memory. Twenty-six
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