sort out the notes from a year ago, and see a piece of code: (>=>) :: Monad m => (a -> m b) -> (b -> m c) -> (a -> m c) f >=> g = x -> f x >>= g is just written differently ( > = > and @ > ). ther...
suppose I have an integer x , and I want to judge whether the integer is in the interval [1, limit] . In Haskell, I can think of two schemes: x > = 1 and x < = limit elem x [1..limit] I used the Profiling, code of GCI as follows: I w...