Dear Haskellers & APLers,
On 03/08/2012 02:44 PM, Simon Peyton-Jones wrote:
> Friends
>
> Many of you will know the array language
> APL<http://en.wikipedia.org/wiki/APL_%28programming_language%29>. It
> focuses on arrays and in particular has a rich, carefully-thought-out array
> algebra.
>
> An obvious idea is: what would a Haskell library that embodies APL's array
> algebra look like? In conversation with John Scholes and some of his
> colleagues in the APL community a group of us developed some ideas for a
> possible API, which you can find on the Haskell wiki here:
> http://www.haskell.org/haskellwiki/APL
>
> However, we have all gone our separate ways, and I think it's entirely
> possible that that the idea will go no further. So this message is to ask:
>
> * Is anyone interested in an APL-style array library in Haskell?
>
> * If so, would you like to lead the process of developing the API?
>
> I think there are quite a few people who would be willing to contribute,
> including some core gurus from the APL community: John Scholes, Arthur
> Whitney, and Roger Hui.
+1
If it may also be an opportunity to think of a standard, efficient
type-class API for multidimensional arrays numeric programmers would
find a new heaven in Haskell too.
With type-level nats one could also hope to reach efficiency of FiSh or
SAC compiler (if anyone remembers these functional wonders, that used
type-level array shapes to improve efficiency of array computations
beyond that of naive C-code.)
Only one note would be that it is to be ultimately included in Haskell
Platform, one needs a more permissive licence than that of HMatrix
(since all HP packages are BSD3, I believe?)
--
Best regards
Michał J. Gajda
yi, hPDB
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