stackcalculator
A Simple stack calculator.
| command | description |
|---|---|
| number | push number onto stack |
| + | top-number-of-stack + second-to-top-number-of-stack |
| - | top-number-of-stack - second-to-top-number-of-stack |
| * | top-number-of-stack * second-to-top-number-of-stack |
| / | top-number-of-stack / second-to-top-number-of-stack |
| % | top-number-of-stack % second-to-top-number-of-stack |
| ^ | top-number-of-stack ^ second-to-top-number-of-stack |
| ! | factorial of top-number-of-stack (implemented using only the other stack commands listed above and below) |
| d | duplicate the top-number-of-stack |
| c | clear stack |
| q | quit |
Example Session
> 1 2 3 4 5
5
4
3
2
1
> +
9
3
2
1
> +
12
2
1
> 3 *
36
2
1
> /
18
1
> d
18
18
1
> *
324
1
> /
324
> 9 !
362880
324
> /
1120
> -1 * 1120 +
0