Re: [Haskell-cafe] Converting from Int to Double

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How can I convert an Int into a Double?

You don't convert to, you convert from :-) The function 'fromIntegral' is probably what you want.

And what function can I use to convert from Double to Int (the inverse of fromIntegral) ?

Use the functions in the RealFrac class. http://www.haskell.org/onlinereport/standard-prelude.html#$tRealFrac class (Real a, Fractional a) => RealFrac a where properFraction :: (Integral b) => a -> (b,a) truncate, round :: (Integral b) => a -> b ceiling, floor :: (Integral b) => a -> b J.A.