results
in
"FORWARD"
results in "HI THERE"
Arithmetic Operators
An arithmetic operator defines an arithmetic operation to be performed
on
the adjoining terms.
Arithmetic
operations are performed using floating
point
numbers Integers are converted to floating
point
numbers before
an
arithmetic
operation
is
performed: the result
is
converted back to
an
integer.
Arithmetic
operations and their symbols are:
Addition
(+).
The plus sign specifies that the term
on
the left
is
to
be
added
to the term on the right. For numeric quantities this
is
straightforward addition.
Examples:
2+2
A+B+C
X%+l
BR+10E-2
The plus sign can
be
used to
"add"
strings:
but
rather than adding their
values, they are Joined together, or concatenated, forming one longer string. The
difference between numeric addition and string concatenation can
be
visualized
as
follows:
Addition
of Numbers:
num1
+num2=num3
Addition
of Strings:
string1
+string2=string1
string2
By concatenation, strings containing up to 255 characters can
be
developed.
Examples:
"FOR"+"WARD"
"HI"+"
"+"THERE"
A$+B$
"l"+CH$+E$
Subtraction
(-).
The minus sign specifies
that
the term to the right of the
minus sign
is
to
be
subtracted from the term to the left.
Examples:
4-1
1
00-64
A-B
55-142
results in 3
results
in
36
results in
-87
63