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From: pmm@acsu.buffalo.edu (patrick m mullhaupt)
Newsgroups: sci.math.num-analysis,sci.math,comp.sources.wanted,alt.sources.wanted,misc.wanted
Subject: Re: C Singular Value Decomposition package?
Message-ID: <37794@eerie.acsu.Buffalo.EDU>
Date: 26 Sep 90 21:07:38 GMT
References: <10489@pt.cs.cmu.edu> <1990Sep20.011833.22595@herald.usask.ca>
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In article <1990Sep20.011833.22595@herald.usask.ca> reeves@dvinci writes:
>From article <10489@pt.cs.cmu.edu>, by skh@nl.cs.cmu.edu (Steve Handerson):
>> 
>> I'm in dire need of a singular-value-decomposition package
>> for arbitrary size (large) matrices.
>
>There is C source (or CORTRAN :-) in Numerical Recipes in C by Press et al.

	I'm not absolutely sure, but I believe there was recently a
discussion in this newsgroup, (maybe it was in sci.math), about a bug
in the Numerical Recipes singular value decomposition algorithm.
	If you're not adverse to fortran, you might want to try the
numerical sofware library available at netlib@ornl.gov.  Just send
mail to netlib@ornl.gov, with the message,
	send index
and you will get a reply with more information about how to get
software (fortran source code), for free.

	Hope this helps,
		Patrick Mullhaupt

PS Numerical Recipes is still an excellent text worth getting.