Stack Demonstration

Stack Operation Demonstration Program

An algebraic expression in reverse Polish notation is evaluated as follows.

The expression is scanned from left to right.
If a number is encountered, it is pushed onto the stack.
If an operator is encountered, it is applied to the top two operands on the stack. After removing the operands used, the result is pushed onto the stack.
When you provide an expression to be evaluated, separate numbers and operators with spaces as 10 20 + 2 * 30 4 6 + + *,