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From: | David Bateman |
Subject: | Re: Using LAPACK in octave |
Date: | Tue, 11 Sep 2007 22:20:26 +0200 |
User-agent: | Thunderbird 1.5.0.7 (X11/20060921) |
David Bateman wrote: > > I've often felt that Octave should change to use the same solver as > Matlab, especially now as the sparse matrices in Octave use a QR solver > with pivoting and don't give exactly the same results as the dense solvers.. If you want another reason to change consider Figure 3.3 on the page http://www.netlib.org/lapack/lug/node71.html for N = 500 dgelss is about 35 times slower than dgelsy D.
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