Operator Types

Perl’s operators provide value contexts to their operands. To choose the appropriate operator, we must know the values of the operands we provide and the value we expect to receive.

Numeric operators

Numeric operators impose numeric contexts on their operands. These operators are the standard arithmetic operators of addition (+), subtraction (-), multiplication (*), division (/), exponentiation (**), and modulo (%), their in-place variants (+=, -=, *=, /=, **=, and %=), and both postfix and prefix autodecrement ...