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T8227.hs:16:44: error:
• Couldn't match expected type ‘Scalar (V (Scalar (V a)))’
with actual type ‘Scalar (V a)’
NB: ‘Scalar’ is a type function, and may not be injective
• In the first argument of ‘arcLengthToParam’, namely ‘eps’
In the expression: arcLengthToParam eps eps
In an equation for ‘absoluteToParam’:
absoluteToParam eps seg = arcLengthToParam eps eps
• Relevant bindings include
seg :: a (bound at T8227.hs:16:21)
eps :: Scalar (V a) (bound at T8227.hs:16:17)
absoluteToParam :: Scalar (V a) -> a -> Scalar (V a)
(bound at T8227.hs:16:1)
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