[Octave-patch-tracker] [patch #10067] [octave forge] (linear-algebra) Improvement of funm

[Philip Nienhuis]

Follow-up Comment #1, patch #10067 (project octave):

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Thank you for your contribution.
The funm stanza on the Projects page you referred to unfortunately turns out
to be a bit terse; some time ago the wiki has been reorganized and since then
I lost track of this particular subject.
Quite some work has already been done, but that is hard to find if there's no
mention of it and no indication of where to search. Apologies for that.
Here's another thread:
https://octave.1599824.n4.nabble.com/Re-GSOC-16-Improvements-to-sqrtm-logm-and-funm-td4675180.html
and a working funm.m (in .m format, not compiled code) is available here:
https://github.com/RickOne16/matrix

I've been using that code quite some time ago and it worked fine for my needs.
TBH I can't remember if it worked OOTB or if I had to fix andor add and/or
compile a few things here and there.
There seem(ed) to be plans to rewrite it all in C++ for performance but that
has never materialized.

Compared to your version the other code accepts about any function in Octave's
workspace which makes it a more generally usable function; for example, I used
it with modified Bessel functions. But I'm no expert in matrix functions so I
can't judge very well which version has the most "potential".

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