Apple IIe - Page 52

52 Apple lie Us ers Handbook
A$
ZIP$
A7$
NED$
MOP$
N222$
A
distinction can also be made among numeric variable names
between floating point variable names and integer variable
names.
In the following example, A1 is used to represent a
floating point number, while A% represents an integer.
100A1=1.75 :A% = A1 * 2
200 PRINT A1 , A%
RUN
1.75 3
Notice that only the integer value of A% is output . The decimal
portion is dropped or truncated as A% can only accept integer
valu es.
Keep in mind that although Applesoft allows variable names of
up to 255 characters, only the first 2 alphanumeric characters are
recognized by the interpreter. In other words , the following
variable names would be identified as being identical by the
Applesoft interpreter .
TELLER
TENNIS
TENNESSEE
However , the special symbols which identify the variable type
(i.e.$,%) differentiate among variables with identical 2 character
names. The
following variable names would all be identified as
unique by the Applesoft interpreter.
TABLES & ARRAYS
TE%
TE
TE$
Earlier in this chapter, we introduced the concept of variables. A
variable
is designed to hold a single data item--either string or