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Re: Octave 2.9.0 available for ftp

From: David Bateman
Subject: Re: Octave 2.9.0 available for ftp
Date: Wed, 16 Mar 2005 09:26:13 +0100
User-agent: Mozilla Thunderbird 0.8 (X11/20040923)

John W. Eaton wrote:

Octave 2.9.0 is now available for ftp from ftp.octave.org in the
directory /pub/octave/bleeding-edge:

 -rw-r--r--  1 1005 7316876 Mar 15 21:00 octave-2.9.0.tar.gz
 -rw-r--r--  1 1005 6060508 Mar 15 21:00 octave-2.9.0.tar.bz2
 -rw-r--r--  1 1005  415730 Mar 15 21:14 octave-2.1.63-2.9.0.patch.gz
 -rw-r--r--  1 1005  342222 Mar 15 21:14 octave-2.1.63-2.9.0.patch.bz2

 f0fbf6995241b957f078962f7c1148df  octave-2.9.0.tar.gz
 687a09033bc68f09810e947010bc8f29  octave-2.9.0.tar.bz2
 8c628ca7e50936d6aef161b64ace903a  octave-2.1.63-2.9.0.patch.gz
 94b26a9b0e278d83175e498af8e7ec7c  octave-2.1.63-2.9.0.patch.bz2

As the jump in version numbers indicates, this snapshot is a big
change from the previous 2.1.x series.  It includes a new
implementation of the sparse matrix data type and splits the gnuplot
parser out into a separate module.  Most of the development for this
snapshot occurred on a CVS branch separate from the recent 2.1.x
snapshots.  The diffs are relative to 2.1.63 because that was the
branch point in the CVS archive.

To be able to solve equations using sparse matrices, you will need to
install UMFPACK v4.4.  A Debian package is available.

This version will be labelled the "development" version of Octave on
the download page of the Octave web site.

The snapshot is tagged in the usual way (ss-2-9-0) in the CVS archive.

As always, if your favorite bug is still not fixed, please report it.



BTW, the sparse stuff includes a polymorphic solver that uses a solver determined from the type of the matrix. I tried to make this solver a complete replacement for the trisolve and SymBand stuff in octave-forge, the only thing missing is the eigenvectors of banded matrices that are calculated with SymBand, and I hope that that can be included as well. I'd therefore suggest that SymBand and trisolve be depreciated if the authors of that code would like to attempt to use the sparse stuff in octave 2.9.0 as a replacement...

On another point I can't see a UMFPACK rpm anywhere, and so if there is someone who won't to make such a package, I'm sure there'll be lots of octave users that would be very happy.


David Bateman                                address@hidden
Motorola Labs - Paris +33 1 69 35 48 04 (Ph) Parc Les Algorithmes, Commune de St Aubin +33 1 69 35 77 01 (Fax) 91193 Gif-Sur-Yvette FRANCE

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