From: Brian Gough <bjg@network-theory.co.uk>
To: Patrick Alken <patrick.alken@colorado.edu>
Cc: gsl-discuss@sourceware.org
Subject: Re: unsymmetric eigenvalue update
Date: Mon, 14 Aug 2006 14:24:00 -0000 [thread overview]
Message-ID: <874pwftmyf.wl%bjg@network-theory.co.uk> (raw)
In-Reply-To: <20060613155620.GA21626@hippogriff.physics.drexel.edu>
At Tue, 13 Jun 2006 09:56:20 -0600,
> I propose adding the double-shift method to gsl (assuming it
> passes any further tests needed) which would be a perfectly
> fine eigenvalue solver (EISPACK used it for a number of years)
> until I (or someone else) can find the time to implement method 3.
>
> Attached is the latest (final? :)) patch.
The latest patch is in sources.redhat.com CVS with some extra
cleanups. It works well. I modified the balance() routine to return
the diagonal scaling elements D (for computing the eigenvectors later)
and moved the memory allocation up out of hessenberg() into the
workspace.
--
Brian Gough
next prev parent reply other threads:[~2006-08-14 14:24 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-14 16:31 Patrick Alken
2006-06-15 1:17 ` Brian Gough
2006-08-14 14:24 ` Brian Gough [this message]
2006-08-14 14:59 ` Patrick Alken
2006-08-14 16:10 ` Patrick Alken
2006-08-16 10:28 ` Brian Gough
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