On Mon, 19 Nov 2007, Andrew Coppin wrote:
Arthur van Leeuwen wrote:
A closely related issue: fromIntegral is in Integral which also requires quotRem. However, the two are semantically quite disjoint. I can *easily* see the semantics of fromIntegral on EpochTime, but not the semantics of quotRem on EpochTime. Having fromIntegral would solve the above puzzle... :)
As I understand it, it's widely recognised that Haskell's current numeric class hierachy is broken (or at best, not very well chosen), but nobody came up with a better suggestion yet.
(By all means, somebody correct me if I'm wrong here...!)
http://www.haskell.org/haskellwiki/Mathematical_prelude_discussion http://www.haskell.org/haskellwiki/Libraries_and_tools/Mathematics#Type_clas...