Re: [Maxima-discuss] Is it wanted?

[Leo B. <Leo...@um...>]

Try your example with:

scalarmatrixp: false$

before you try:

u^^(-1);

It seems like a bug that ^^ signals an error when u is a 1x1 matrix but
scalarmatrixp is true; I would expect ^^ to gracefully punt to ^.

Leo


On Wed, Mar 27 2024, Igor Pesando <ipe...@gm...> wrote:

> Hi *
>
> I came across this weird behavior.
>
> I'm not sure it is wanted even I could imagine some reasons why it is so.
>
> %i1) u:ident(1);
> (%o1)                                [ 1 ]
> (%i2) matrixp(u);
> (%o2)                                true
> (%i3) u^^(-1);
>
> not a matrix: 1
>  -- an error. To debug this try: debugmode(true);
>
> (%i1) q:ident(1);
> (%o1)                                [ 1 ]
> (%i2) q.q ;
> (%o2)                                  1
> (%i3) matrixp(q.q);
> (%o3)                                false
>
> Bests
>
> Igor P
>
>
>
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-- 
---
Best regards,
Dr Butler