From: cnb <circularfunc@...>
Date: 2008-09-08T11:53:57+09:00
Subject: Re: Ruby tailcall optimizes?

wow this was nice and elegant and i can even call it with fac 5 withou
parenthesis. .

def fac(n, acc=1)
    if n > 0
        then fac(n-1, n*acc)
        else acc
    end
end