Re: Possible extension/fix to the linear-algebra funm function

[José Abílio Matos]

Hi,
  I am following up this so that it does not get lost.

On Monday, December 30, 2019 12:55:18 PM WET PhilipNienhuis wrote:
> Thanks José.
> You're right in principle but IMO it is still better to directly call the
> core functions logm, expm and sqrtm if only to avoid overhead.

I understand your concern but the purpose of funm is to be a dispatch function 
so clearly we expect an overhead when calling it. And sometimes it is OK to 
trade speed for convenience. :-)

> Please upload your patch to the patch tracker if you want:
> https://savannah.gnu.org/patch/?group=octave

I did it here:
https://savannah.gnu.org/patch/index.php?9888

> BTW, there's a much better funm.m looming here:
> 
> https://github.com/RickOne16/matrix/tree/master/funm
> 
> I hope that one can be absorbed one day in the linear-algebra package or
> rather, core Octave.
> AFAICS it works fine - but I only tested it for mathematically fairly easy
> cases (positive-semidefinite (symmetric) matrices of limited size, max. size
> ~50).
> 
> Philip

Best regards,
-- 
José Matos