3 ms·
map2 is indeed another name for zipWith. I believe I got that name from Racket if memory serves. Compared to zipWith I like its symmetry with the 1 argument map
by jfecher 4y ago
map2 is indeed another name for zipWith. I believe I got that name from Racket if memory serves. Compared to zipWith I like its symmetry with the 1 argument map. I also wasn't aware of bimap! I can't seem to find a function of that name online, though I did find the BiMap haskell package, is that what you're referring to?
And yes, the dot product should be 32, thank you :)
- pwm 4y agoNot OP but they meant https://hackage.haskell.org/package/base-4.16.1.0/docs/Data-Bifunctor.html#v:bimap https://hackage.haskell.org/package/base-4.16.1.0/docs/Data-... As you have the normal map function for Functors (using Haskell): > :t fmap fmap :: Functor f => (a -> b) -> f a -> f b you can have bimap for Bifunctors: > :t bimap bimap :: Bifunctor p => (a -> b) -> (c -> d) -> p a c -> p b d which specialised to pairs is: > :t bimap @(,) bimap @(,) :: (a -> b) -> (c -> d) -> (a, c) -> (b, d)
- eruditely 4y agoI was wondering why the dot product wasn't 32! Good thing I checked. Also this seems like a cool new language, I need to learn a functional language, I wonder how far this language will go in development.