On 3/24/07, Barton Willis <willisb at unk.edu> wrote:
> (4) I'm not fond of gratuitous generalizations:
>
> (%i6) cross([1,2,3], matrix([5],[9],[10]));
> (%o6) [-7,5,-1]
>
> I think such things lead to trouble.
FWIW I'm in agreement on this point. It's hard enough to predict
what's going to happen; automatic conversions make it even harder.
An underlying problem here is that Maxima does not have a
vector type distinct from lists or matrices. I'm inclined to think
we should go ahead and invent one.
Robert