Questions tagged [applicative]

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1answer
177 views

How to map random cardesian points in a 2d array

I was wondering if there is any algorithm, theoretical or already implemented, or if its even possible at all, where, given N random ...
17
votes
3answers
2k views

Is there a concept of something like co-applicative functors sitting between comonads and functors?

Any monad is also an applicative functor and any applicative functor is a functor. Also, any comonad is a functor. Is there a similar concept between comonads and functors, something like co-...
12
votes
2answers
599 views

What are the relations between Alternative, MonadPlus(LeftCatch) and MonadPlus(LeftDistributive)?

Following up What’s an example of a Monad which is an Alternative but not a MonadPlus?: Assume $m$ is a monad. What are the relations betweem $m$ being an Alternative, a MonadPlusCatch and a ...