Recursive.borg

{
`a standard factorial, defined recursively
fac(n)::
    {
    if (n > 1,
        n*fac(n-1),
        1)
    };

`a standard fibonacci, defined recursively
fib(n)::
    {
    if (n > 1,
        fib(n-1)+fib(n-2),
        1)
    };

display("fac(10)",eoln,"fib(18)")
}