Re: [Help-gsl] Comments/questions about BFGS algorithm implemented for the GSL

[Alan W. Irwin]

On 2007-02-08 20:20-0000 Brian Gough wrote:

> Hello,
>
> Just to let you know, I have added an implementation of the Fletcher
> BFGS algorithm to the GSL CVS repository at
> http://sourceware.org/gsl/devel.html - it gets the number of function
> and gradient evaluations on the test problem down to (60,44) compared
> with (56,50) in his book.  Thanks for the information on that.

Hi Brian,

Thanks for closing this matter.  I think your users will benefit a lot
from this much more efficient line search approach.

Alan
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Alan W. Irwin

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state implementation
for stellar interiors (freeeos.sf.net); PLplot scientific plotting software
package (plplot.org); the Yorick front-end to PLplot (yplot.sf.net); the
Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project
(lbproject.sf.net).
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Linux-powered Science
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