- Double-precision postfix notation calculator
- Supports the following operations:
- Addition
- Subtraction
- Multiplication
- Division
- Exponentiation and Roots
- Trigonometric Functions
- Inverse Trig Functions
- Natural Logarithms
- Each number can be up to 20 characters long
- Any number of operations can be entered on one line
- Only 500 characters of input will be read
- Only 16 numbers can be on the stack at one time