Haskell Language Arithmetic Function examples
Example
What's the type of (+) ?
λ> :t (+)
(+) :: Num a => a -> a -> a
What's the type of sqrt ?
λ> :t sqrt
sqrt :: Floating a => a -> a
What's the type of sqrt . fromIntegral ?
sqrt . fromIntegral :: (Integral a, Floating c) => a -> c
