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August 30, 2016 05:53
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My QuickCheck instance for Data.Matrix (square matrices)
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| instance (Arbitrary a) => Arbitrary (Matrix a) where | |
| -- NB: for square matrices | |
| arbitrary = sized (\n -> do xs <- vectorOf (n*n) arbitrary | |
| return $ matrix n n (\(i, j) -> xs !! ((i-1)*n + (j-1)))) |
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