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Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Date: Sun, 8 Mar 2009 16:28:18 -0400 These preserve sparsity, so eye(5) * sprand (5, 5, .2) is *sparse* and not dense. This may affect people who use multiplication by eye() rather than full(). The liboctave routines do *not* check if arguments are scalars in disguise. There is a type problem with checking at that level. I suspect we want diag * "sparse scalar" to stay diagonal, but we have to return a sparse matrix at the liboctave. Rather than worrying about that in liboctave, we cope with it when binding to Octave and return the correct higher-level type. The implementation is in Sparse-diag-op-defs.h rather than Sparse-op-defs.h to limit recompilation. And the implementations are templates rather than macros to produce better compiler errors and debugging information.
author Jason Riedy <jason@acm.org>
date Mon, 09 Mar 2009 17:49:13 -0400
parents 5eb3db6e4042
children 66fdc831c580
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This directory contains the source for Octave, a high-level interactive
language for solving numerical problems.  See the files README.octave
and Announce for more general information, and the file NEWS for a
list of recent changes.

Binary distributions:
--------------------

Octave binaries are no longer distributed from this site.

Packaged versions of Octave for various GNU/Linux systems are available
with the major GNU/Linux distributions (Debian, Red Hat, SuSE, etc.).

Binary distributions of Octave for Mac OS X are available as part of
the fink project: http://fink.sourceforge.net

The file README.Windows provides instructions for installing Octave on
Windows systems.

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----------------------

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Unlike the compress utility, gzip is free of any known software
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The gzip program is available in the directory /pub/gnu in shar, tar,
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John W. Eaton
jwe@bevo.che.wisc.edu
University of Wisconsin-Madison
Department of Chemical & Biological Engineering

Last updated: Wed, 31 Oct 2007 16:28:00 EDT