COBYLA (Was Re: GSL, FFI, GCL, Windows; was: find_root with bfloats)



On 10/7/10 11:02 PM, Raymond Toy wrote:
> Perhaps it would be useful to add this to maxima, if we can obtain
> permission from Powell.  (I don't have his email address, so it might
> take some time.)

Thanks to David Billinghurst for finding his email. I have now contacted
Michael J.D. Powell, the author of COBYLA, and he says:

I wrote the Fortran package COBYLA ....
I hope that my contributions are
helpful to you. I believe in making software available freely, so
there are no restrictions on the use or distribution of COBYLA.
I hope this reply answers your question.

So, I'll add colbya in share/colbya shortly.

Ray