higher-order-functions Archives

[Solved] Higher order function parameter [closed]

November 7, 2022 by Kirat

Your call to and_ does not see director and “Brad Bird” directly; it gets the function that results from applying director to “Brad Bird” (and similarly for the second argument. and_ :: (Movie -> Bool) -> (Movie -> Bool) -> Movie -> Bool and_ f1 f2 (_, rank, dir) | … The bigger problem is … Read more

[Solved] SML functional programming higher order function?

August 25, 2022 by Kirat

Hint 1: Compare the result of your ziprev with List.zip [1,2,3,4] [10,20,30,40] You should see a fairly obvious pattern. Hint 2: List.rev reverses a list. Hint 3: Can you use zipW to implement List.zip? That is, if you want to say normalzip xs ys = zipW something xs ys what would something be? solved SML … Read more