[Haskell-cafe] Ordering of BigFloats in numbers-3000.0.0.0
Michael Orlitzky
michael at orlitzky.com
Sun Oct 7 20:00:36 CEST 2012
I'm trying to use,
http://hackage.haskell.org/package/numbers-3000.0.0.0
to get better precision "for free" out of some numerical code. I ran
into an issue pretty quickly, though. In Data.Number.BigFloat, we have,
data BigFloat e = BF (Fixed e) Integer
deriving (Eq, Ord)
and the derived Ord is obviously incorrect:
Prelude Data.Number.BigFloat> let x = 0.1 :: BigFloat Prec50
Prelude Data.Number.BigFloat> let y = 0.02 :: BigFloat Prec50
Prelude Data.Number.BigFloat> x < y
True
But, I'm not sure who I should contact as the maintainer. The LICENSE
file has,
Copyright (c) 2007-2012
Lennart Augustsson, Russell O'Connor, Richard Smith,
Daniel Wagner, Dan Burton
The cabal file says (no email address),
Maintainer: Lennart Augustsson
And the repo is at,
https://github.com/DanBurton/numbers
Does anyone know who I should bug for a fix?
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