## Firth, or 1th, is a postfix calculator for fractions.

Firth is a stack based rpn calculator, created to be an improved version of Unix's dc. It supports basic arithmetic, a few forth primitives and is the perfect companion utility to Fractran.

### Examples

The following example, will print the mixed fraction `3&1/6`

.

clr 11 4 div 5 12 div add mix

To print the decimal value of a fraction.

clr 22 7 div 1 791 div sub dec

To get the `floor()`

of a fraction.

clr 17 4 div dup 1 mod sub .

### 1th.c

`14V06`

— Firth Release