Re: Is this tai-recursion?

On 2 Lug, 13:50, Vend <ven...@[EMAIL PROTECTED]
> wrote:
> On 30 Giu, 13:42, defn noob <circularf...@[EMAIL PROTECTED]
> wrote:
>
> > is this tail-recursion or iteration?
>
> > (define (fib n)
> >   (define (fibs a b n)
> >     (if (<= n 1)
> >         b
> >         (fibs b (+ a b) (- n 1))))
> >   (if (= n 0)
> >       0
> >       (fibs 0 1 n)))
>
> Yes.

I mean, it's tail recursion.