Re: Bizarre semantic of Mat

[Ilya Zakharevich <nospam-abuse@ilyaz.org>]

On Wed, Jan 17, 2024 at 11:31:39AM +0100, Bill Allombert wrote:
> > Is there a simple way to convert a vector-column into a 1 column
> > matrix (without using matrix())?  Mat() is almost there — except for
> > bizarre special-cases — which are impossible to switch off!
> 
> There is a trick:
> 
> ? V=[[1]~,[2]~,[3]~]
> %28 = [[1]~,[2]~,[3]~]
> ? Mat(V~)~
> %29 = Mat([[1]~,[2]~,[3]~])

Hmm?  It seems that this is “another ‘cute special case’” — which
requires PRIOR KNOWLEDGE about the nature of elements of the vector.
Does not it?

Thanks,
Ilya