[Haskell-cafe] writing a function to make a correspondance between type-level integers and value-level integers

TP paratribulations at free.fr
Sat Jun 22 15:54:11 CEST 2013

oleg at okmij.org wrote:

> I'm late to this discussion and must have missed the motivation for
> it. Specifically, how is your goal, vector/tensor operations that are
> statically assured well-dimensioned differs from general
> well-dimensioned linear algebra, for which several solutions have been
> already offered. For example, the Vectro library has been described
> back in 2006:
>         http://ofb.net/~frederik/vectro/draft-r2.pdf
>         http://ofb.net/~frederik/vectro/
> The paper also talks about reifying type-level integers to value-level
> integers, and reflecting them back. Recent GHC extensions (like
> DataKinds) make the code much prettier but don't fundamentally change
> the game.

Thanks Oleg for pointing out to this library. For the time being, I'm 
interested in doing component-free computations:


But this library (and the corresponding article) may help me in the future.



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