Commodore CBM - Numeric Strings

PrinterIScreen Concatenation
Another method is available if vou want the strings concatenated for screen
or printer
output only. and not retained in the PET memory. This is done with the
PRINT statement
and semieolon separa tors (;) between the strings:
F'RINT A$.; ~T$.; S$
F~U~·j
ABCDEFGHIJKLMNOPQRSTUVWXYZ
The above result (A through l) is equivalent to the contents of l$ because the
semicolons allow no embedded blanks between the strings. The only difference
is
that the screen result (A through l) is not retained anywhere in PET memory.
However. this method
will not concatenate strings without embedded blanks if
the strings were previously converted from a numeric variable
with the STR$ or
VAL functions; this will be discussed further in the "Numeric Strings" section.
Concatenating Graphie Strings
Concatenating graphie strings can be very useful in creating pictures and
diagrams.
Graphie strings are eoneatenated in the same way as alphabetie
strings.
NUMERIC STRINGS
A numeric string is a string composed of numbers - or a combination of
numbers and decimal point. negative sign. or exponent -
that evaluates to a real
number. A numeric string must
be identified by a "$" following the string na me.
The contents of numeric strings may be assigned in two different ways.
each yielding slightly different results.
When numerie variables are assigned to
numerie strings using the STR$ funetion, the sign value preeeding the num-
ber (blank if positive,
"-" if negative) is transferred along with the number.
This is shown in the short program below:
1121 AB=12345
2(1 T$=STR$(AB)
::::13 F'RINT"AB=".; AB
413 F'RINT"T$=".; T$
AE:= 12345
T$= 12345
182