Re: Structures and tensors

[Jordi Gutierrez Hermoso]

On 02/08/06, Peter Cloetens <address@hidden> wrote:
> Then I rewrote everything with cells, where each element of the cell
> array corresponds to 1 matrix. This improved the speed very considerably.

I think I'm having similar issues right now with some weather
equations. Any idea what the order of magnitude of the improvement is?

> You use:
>  E{k}  instead of E(:,:,k)
> As long as you do not need to access your data in the third dimension this
> is much more efficient and readable.

How about if I need FOUR dimensions? See, I'm modelling some weather
dynamics, and I would like to keep track of the passage of time, and
I'm not assuming the atmosphere to be thin enough to consider it
two-dimensional (though I probably should). So I end up having rank 4
tensors, one for each spacetime dimension. :-/

Any suggestion how to improve this?

Thanks,
- Jordi G. H.