It is a program that takes a math expression written with parentheses and turns it into a prefix and postfix notation. The special feature of this program is that it can handle variables like "A", "B" ...

Postfix (Reverse Polish) Notation: Operators are written after operands A B - C + == (A - B) + C Infix Notation: The standard notation we use where the operator is between the operands. Prefix (Polish ...