[Haskell-cafe] Multidimensional Matrices in Haskell

[Casey Hawthorne]

Doesn't mutable state have to be held in a monad?

If you want "mutable like behaviour" without a monad, you may want a
tree or some other data structure.

On Wed, 7 Jul 2010 17:08:48 +0300, you wrote:

>Hi,
>
>A friend of mine wanted to do some Cellular Automata experiments in
>Haskell and was asking me what packages/libraries are there for
>multidimensional matrices. I'm interested in both immutable and
>mutable ones but I don't want them to be trapped inside a monad of any
>kind.
>
>Any hints?
--
Regards,
Casey