Hi,
Is anybody interested in Powell search algorithm (
http://www.ecs.fullerton.edu/~mathews/n2003/PowellMethodMod.html)?  I
couldn't find any PDL (or non-PDL) modules for that.  So, I wrote a code for
the routine.  The subroutine powell() in the source code attached is similar
to simplex() in PDL::Opt::Simplex.  I also attach tpow.pl for testing.  For
simple functions, Powell's algorithm seems to converge faster.  In general
cases, I am not sure, though.

If it looks fine, perhaps one of the PDL people can upload it to CPAN.

-- 
Best,
InSuk Joung

Attachment: Powell.pm
Description: Perl program

Attachment: tpow.pl
Description: Perl program

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