Retro video games delivered to your door every month!
Click above to get retro games delivered to your door ever month!
Arithmetic Operators
OuSob Home Page
PrevChapter 15. OperatorsNext

Arithmetic Operators

Remember basic arithmetic from school? These work just like those.

Table 15-2. Arithmetic Operators

ExampleNameResult
-$aNegationOpposite of $a.
$a + $bAdditionSum of $a and $b.
$a - $bSubtractionDifference of $a and $b.
$a * $bMultiplicationProduct of $a and $b.
$a / $bDivisionQuotient of $a and $b.
$a % $bModulusRemainder of $a divided by $b.

The division operator ("/") returns a float value anytime, even if the two operands are integers (or strings that get converted to integers).

Note: Remainder $a % $b is negative for negative $a.

See also the manual page on Math functions.

PrevHomeNext
OperatorsUpAssignment Operators