(moved to Cafe)
At 2002-03-19 03:33, [EMAIL PROTECTED] wrote:
>I've already declared Gaussian a as being of class Eq so why does it need
>to be told again?
No you haven't. You've declared 'Eq a => Eq (Gaussian a)' -- 'Gaussian a'
is Eq if 'a' is, not 'Eq (Gaussian a)'.
Try this
instance Eq a => Num (Gaussian a) where
...
...and actually looking at your code, I think you want this:
instance Num a => Num (Gaussian a) where
...
--
Ashley Yakeley, Seattle WA
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