thx

2013/8/26 Marshall Bockrath-Vandegrift <llas...@gmail.com>

> Dennis Haupt <d.haup...@gmail.com> writes:
>
> > (defn fib-n [n]
> > (let [fib (fn [a b] (cons a (lazy-seq (fib b (+ b a)))))]
> > (take n (fib 1 1))))
> >
> > can't i do a recursion here? how can i achieve this without doing an
> > "outer defn"?
>
> You just need to give the anonymous function a name it can use to refer
> to itself for (non-tail) recursion:
>
>     (defn fib-n [n]
>       (let [fib (fn fib [a b] (cons a (lazy-seq (fib b (+ b a)))))]
>         (take n (fib 1 1))))
>
> -Marshall
>
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