[Haskell-beginners] Fwd: tower hanoi problem

[Joel Neely]

Nice!

Just out of curiosity...

I have no trouble accepting that the zipWith3 approach is more idiomatic,
but it doesn't appear (to my eye) significantly shorter or significantly
more obvious. So are the tradeoffs primarily cultural, or is there another
issue that I'm missing?

Thanks,
-jn-

On Sat, Feb 21, 2015 at 12:04 PM, Chaddaï Fouché <chaddai.fouche at gmail.com>
wrote:

> On Sat, Feb 21, 2015 at 4:50 PM, Joel Neely <joel.neely at gmail.com> wrote:
>
>>
>> smooth :: Fractional n => [n] -> [n]
>> smooth (a:z@(b:c:_)) = (a + b + c) / 3 : smooth z
>> smooth _             = []
>>
>>
>>
> In Haskell, I would write this with higher-order functions though :
>
> smooth xs = zipWith3 (\a b c -> (a+b+c)/3) xs (drop 1 xs) (drop 2 xs)
>
> --
> Jedaï
>
>
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-- 
Beauty of style and harmony and grace and good rhythm depend on simplicity.
- Plato
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