Factorial in FALSE

Example for versions Morphett's FALSE, Wouter's FALSE 1.2.CF

This example uses iterative method of factorial calculation. Variables i and f store current number (loop counter) and current factorial value. After the variables are initialized, the loop starts. [i;17=~] defines the continuation condition: as long as i doesn’t equal 17. Loop body follows: i and a string constant are printed, i is incremented, old value of f is printed and new value of f is calculated.

For Wouter’s FALSE 1.2.CF factorial values for 13 and above are calculated with overflow error.

0i: 1f: 
[i; $."! = " 1+$i: f;$.10, *f:]