Create a working Stack

Question

Your mission, if you choose to accept it, is to create a stack that can do basic math operations.

Explanation: Your stack must be able to do basic arithmetic (+-*/) and must support normal base 10 numbers (0123456879); numbers will only be one character long.

Programming: Input from stdin will be loaded as a program. After the program has finished running, the contents of the stack will be printed with no spaces in between after the program runs.

Each character in the program does a different thing to the stack:

• A number will push itself
• A math operation will take the top two numbers on the stack and push the output.

Example I/O:

Input:

45+

Output:

9

Input:

235234

Output:

235234

Input:

566*+

Output:

41

Input:

243+-

Output:

-5

Input:

78+243+-

Output:

15-5

Division is shown as a integer if it has .0:

Input:

63/

Output:

2

Repeating Decimals are cut off at 2 places:

Input:

43/

Output:

1.33

Rules:

• You stack must have a length of least 128.
• Your stack must be double/float based.
• No eval-ing!

Scoring: Your score is you byte count with a couple modifiers.

• x0.9 if you include mod (%) and pow (^).
• x0.8 if you parse numbers in base 36 (0-9A-Z).
• x0.7 if you parse strings (each character of the string will be pushed as separate numbers)
  • "Hi" pushes 72 and 105, which will output 72105.