Calc-ium Oxide, a simple stack based command line calculator written in rust
```sh
$ cao 1 5 sqrt + 2 / 1.618033988749895
$ cao 372 64 gcd 4
$ cao 1 21 seq fib map 1 1 2 3 5 8 13 21 34 55 89 144 233 377 610 987 1597 2584 4181 6765
$ cao 1 1000000 seq len 0 store prime map + fold dup 0 take swap - / 5 dp 0.08518 ```
Refer to DOCS.md