Polish and Reverse Polish notations.
In the evaluation of arithmetic expressions using prefix and postfix forms, the following notations are commonly used:
- Prefix Notation (also known as Polish Notation): In prefix notation, the operator precedes its operands. For example, the expression “+ 3 4” represents the addition of 3 and 4.
- Postfix Notation (also known as Reverse Polish Notation): In postfix notation, the operator follows its operands. For example, the expression “3 4 +” also represents the addition of 3 and 4.
These notations are important in the context of expression evaluation algorithms like the stack-based algorithms used for evaluating prefix and postfix expressions.