Re: [Haskell-cafe] pi

jerzy.karczmarczuk@info.unicaen.fr wrote:

Somehow I do not only think that the default implementation would be good for nothing, but that putting PI into Floating as a class member, serves nobody.

Are you aware that it already is in the Floating class? This discussion is not about adding it, but about whether or not it should have a default. Are you suggesting pi should be removed from the Floating class? Then, what type would you give pi? Given that pi is often used with sin, as in "sin (t * pi)" it would seem very odd if pi forced that to be monomorphic: \t -> sin t -- polymorphic \t -> sin (t*pi) -- monomorphic ? Jules