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 Dec 2022

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Haskell引入Applicative functor有什么意义？
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 Feb 2021

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Though rarer in computer science, one can use category theory directly, which defines a monad as a functor with two additional natural transformations. So to begin, a structure requires a higherorder function (or "functional") named map to qualify as a functor:
rare in computer science using category theory directly in computer science What other areas of math can be used / are rare to use directly in computer science?

category of functors (from values to computations)


mmhaskell.com mmhaskell.com

So if you don't yet understand functors or applicative functors, check out part 1 and part 2 of this series!
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 Jan 2020

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