Path: news.mathworks.com!not-for-mail
From: Loren Shure <loren@mathworks.com>
Newsgroups: comp.soft-sys.matlab
Subject: Re: nonnegative Ax=b lsq for large, sparse A.
Date: Thu, 2 Jul 2009 07:19:03 -0400
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In article <h231jk$jcv$1@fred.mathworks.com>, 
mREMOVEmaALLraCAPITALSzzi@mathworks.com says...
> Tom,
> 
> lsqnonneg was upgraded in version R2008b; it now uses sparse linear algebra if the
> matrix is sparse (it uses "\", backslash).
> 
> R2008b Release notes:
> http://www.mathworks.com/access/helpdesk/help/techdoc/rn/brqyzsl-1.html
> (See "Upgrades to lsqnonneg".)
> 
> -Marcelo
> 
Tom-

Can you tell us what version you are using?  If earlier than 8b, can you 
try it in 8b or later?


-- 
Loren
http://blogs.mathworks.com/loren