# Algorithm for Evaluation of postfix expression

Postfix expression also known as** Reverse Polish notation** (**RPN**) is a mathematical notation in which every operator follows all of its operands, in contrast to Polish notation (PN), which puts the operator before its operands. It is also known as **postfix notation**. It does not need any parentheses as long as each operator has a fixed number of operands.

Continue reading Evaluation of postfix expression algorithm using stacks