Hi,
Math newbie here: what's the difference between a group and a monoid?
Patrick
On Wed, Mar 16, 2011 at 4:49 AM, Christian
Hello Haskell-Experts! I was trying to express the notion of a (mathematical) group in Haskell, using type classes, as an exercise. If I am not mistaken, a group can be for example the Reals together with the multiplication operation and "1" as the neutral element. Or, the Reals with addition and "0". my first idea was to write something like
class Group a where ...
_but_, I thought, I need to parameterise, so to speak, not only using the type "a", but also the group operation. How could I do that in Haskell? Is that even possible?
Thanks in advance! Christian
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-- ===================== Patrick LeBoutillier Rosemère, Québec, Canada