Language Basics Perl

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  4. Increment and Decrement Operators
Operator     Example       Description
+            $a = 3 + 4;   Add
-            $a = 3–4;     Subtract
*            $a = 3 * 4;   Multiply
/            $a = 3 / 4;   Divide
**           $a = 2 ** 4;  Raise the power
%            $a = 36 % 8;  Modulo the expression on the left of the operator by the expression on the right of the operator.