[Bug-gsl] Re: Bug#500521: fminimizer nmsimplex unnecessary size calculation

[Brian Gough]

At Mon, 29 Sep 2008 19:13:28 -0500,
Dirk Eddelbuettel wrote:
> 
> 
> Ian:    Ack, and thanks for the bug report. It is an upstream issue, so I am
>       passing this on.  Did you by chance consider the current 1.11 sources?
> 
> Brian:  See the description below, as well as the follow-up patch at
>       http://bugs.debian.org/500521 Comments, esp on the patch, would be
>       appreciated. I guess this may come back to the oft-discussed issue of
>       simplicity and clarity of interfaces and usage versus performance.
> 

Just to let you know, there is now an O(N) implementation of the
simplex algorithm in GSL, which should solve the performance problems
of the O(N^2) version.

http://git.savannah.gnu.org/gitweb/?p=gsl.git;a=commit;h=b8e9d15cc5000b495a36f569b413b1866577fe7b

-- 
Brian Gough