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Asked: 2026-06-08T16:38:19+00:00

whats the correct way to write a function that can accept different input’s and

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whats the correct way to write a function that can accept different input’s and have different outputs

for example i’m using hmatrix and
lets say i want to accept a Matrix or a Vector in my function, and the output can be a Matrix or a Vector depending on hte formula
where T in the below example can be a matrix or a vector , is maybe the right tool for this?

Myfunc ::(Matrix A, Matrix/Vector T) -> Maybe(Matrix/Vector T)

Update using either mentioned below here is one possible solution 

Myfunc :: Maybe Matrix Double t -> (Either Vector Double a,Matrix Double a) -> Either (Matrix Double T,Vector Double T)
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1 Answer

  1. Editorial Team

    You could either have a look at Either (I know, it’s a bad joke), or, if your function has a general meaning but different implementations on different data types, you could define a typeclass.

    edit: I didn’t add any further details because your question isn’t completely clear to me

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