On Mon, 4 Jun 2007, Dan Piponi wrote: > On 6/4/07, DavidA <[EMAIL PROTECTED]> wrote: > > Yes, I'm afraid that you are understanding correctly. Annoying isn't it. > > > > It is well-known (among Haskell mathematicians at least) that the numeric > > type > > classes in the prelude are broken. > > A few days ago I found myself forced to write: > > > instance Floating Fixed where ... > > where 'Fixed' is a fixed point arithmetic class! :-) > > When you find yourself having to make a type an instance of the > complete 'opposite' class you know you have serious problems!
Indeed. The corresponding class is called Transcendental in NumericPrelude. (And FixedPoint is an instance of it.) _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
