[Haskell-cafe] Re: Double -> CDouble, realToFrac doesn't work

[Ben Rudiak-Gould]

MR K P SCHUPKE wrote:

 >Why is there no Irrational class. This would make more sense for
 >Floats and Doubles than the fraction based Rational class. We could
 >also add an implementation of infinite precision irrationals using
 >a pair of Integers for exponent and mantissa.

That would just be a subset of the rationals, namely the dyadic 
rationals (mantissa / 2^^exponent).

-- Ben