Hi Clark, On Thu, May 31, 2012 at 10:35 AM, Clark Gaebel <[email protected]> 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. > Your HPaste shows the type of modexp2 is Int -> Int -> Int -> Int, so ghci will infer that (3^40) is an Int. But an Int isn't big enough to hold 3^40. Prelude> 3^40 :: Int -6289078614652622815 Prelude> (3^40 :: Int) `mod` 3 2 Kevin -- Kevin Charter [email protected]
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