Re: Curry-on to infinity

From: Sebastian Hanowski <sebastian_hanowski_at_gmx.de>
Date: Mon, 21 Dec 2015 09:15:28 +0100

On Tue, Dec 15, 2015 at 03:44:34PM +0100, Michael Hanus wrote:
[...]
> Hence, the challenge is open...

This is my last resort:

        fibmatch (tail (tail xs)) = xs

        fib | head xs =:= 1
              & head (tail xs) =:= 1 = xs
                where
                xs = fibmatch (zipWith (+) xs (tail xs))

No non-linear patterns. No (=:<=). And no constructors.

But unfortunately it features too much cyclicity which I had liked to avoid.

Think it's time now for a principled retreat.


Best regards

Sebastian
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Received on Mo Dez 21 2015 - 17:47:35 CET

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