Important Notice
The pages on this site contain documentation for very old MS-DOS software,
purely for historical purposes.
If you're looking for up-to-date documentation, particularly for programming,
you should not rely on the information found here, as it will be woefully
out of date.
Arithmetic Operators
◄Contents► ◄Index► ◄Back►
──────────────────────────────────────────────────────────────────────────────
Arithmetic Operators
■ Visual Basic provides the following arithmetic operators (in order of
precedence):
Operator Usage
════════ ════════════════════════════════════════════════════════
^ Exponentiation
- Negation
*, / Multiplication and division
\ Integer division
MOD Modulo division
+, - Addition and subtraction
■ Parentheses change the order in which arithmetic operations are performed.
Operations within parentheses are performed first. Inside parentheses, the
usual order of operation is maintained.
■ Generally, two consecutive operators must be separated by parentheses.
Exceptions to this rule are * -, * +, ^ -, and ^ +.
■ Integer division is denoted by the backslash (\); the forward slash (/)
indicates floating-point division. Before integer division is performed,
operands are rounded to integers or long integers, and so must be greater
than -2,147,483,648.5 and less than 2,147,483,647.5. The quotient of an
integer division is truncated to an integer. For example:
PRINT 7 \ 2, 7 / 2, -32768.499 \ 10, -32768.499 / 10
where the output is:
3 3.5 -3276 -3276.8499
■ Modulo arithmetic is denoted by the modulus operator MOD. Modulo
arithmetic provides the remainder, rather than the quotient, of an
integer division. For example:
X% = 7 \ 2
REMAINDER% = 7 - 2*X% '7 = 2*3, with remainder 1
PRINT REMAINDER%, 7 MOD 2
where the output is:
1 1
■ The following operations produce run-time errors that can be trapped by an
error-trapping routine:
• Dividing by zero
• Raising zero to a negative power
• Arithmetic overflow
See: ◄Error/Event Trapping Summary►
See: ◄Expressions and Operators Summary► ◄Hierarchy of Operations►