[Haskell-cafe] Confused by ghci output

[Ertugrul Söylemez]

Clark Gaebel <cgaebel at uwaterloo.ca> wrote:

> *X> 3^40 `mod` 3 == modexp2 3 40 3
> False
> *X> modexp2 3 40 3
> 0
> *X> 3^40 `mod` 3
> 0
>
> I'm confused. Last I checked, 0 == 0.

This has to do with types:

    > 3^40 `mod` 3
    0

    > 3^40 `mod` 3 :: Int
    2

When doing number theory always use Integer.


Greets,
Ertugrul

-- 
nightmare = unsafePerformIO (getWrongWife >>= sex)
http://ertes.de/
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