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Adding type signature so it compiles with GHC7.7 #90

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Jul 2, 2013
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Adding type signature so it compiles with GHC7.7 #90

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2 changes: 1 addition & 1 deletion src/Diagrams/TwoD/Curvature.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -142,7 +142,7 @@ toPosInf (p,q)
curvaturePair :: (Num t, Num (Scalar t), VectorSpace t)
=> Segment Closed (t, t) -> Scalar t -> (t, t)
curvaturePair (Linear _) t = (0,1) -- Linear segments always have zero curvature (infinite radius).
curvaturePair (Cubic b c (OffsetClosed d)) t = ((x'*y'' - y'*x''), (x'*x' + y'*y')^3)
curvaturePair (Cubic b c (OffsetClosed d)) t = ((x'*y'' - y'*x''), (x'*x' + y'*y')^(3 :: Integer))
where
(x' ,y' ) = firstDerivative b c d t -- TODO: Use the generalized unr2
(x'',y'') = secondDerivative b c d t
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