I just looked through the archives and the web searches and didn't really find anything current on sparse matricies. Is there anything current for Python which handles sparse matrix codes? If someone is looking for a C implementation of sparse matrix handlers, I would refer to the sparse matrix package developed at Berekeley which is part of the Spice 3f4 circuit simulator (released under a modified old-style BSD license). I can provide pointers if they are desired. My goal is to actually create a useful circuit simulator wholly in Python so that it would be useful for both teaching and modification in special cases. Andy L.
Is there anything current for Python which handles sparse matrix codes?
If someone is looking for a C implementation of sparse matrix handlers, I would refer to the sparse matrix package developed at Berekeley which is part of the Spice 3f4 circuit simulator (released under a modified old-style BSD license). I can provide pointers if they are desired.
I've done about three Sparse matrix packages built on SPARSEKIT, UMFPACK, and some of my own rolled stuff. SciPy has a subpackage for Sparse matrices, but it is not ready yet. I'd be interested in the package you are talking about. -Travis Oliphant
On Tue, 8 Jan 2002, Travis Oliphant wrote:
SciPy has a subpackage for Sparse matrices, but it is not ready yet.
Well, I'm in the process of setting up the simulator now. I don't need the sparse matrix package immediately, but if there isn't anything useful in a week or so, I'll have to figure out a workaround. I'd *really* rather not. Even something which isn't quite ready would be better than what I would write (and then have to throw away).
I'd be interested in the package you are talking about.
http://www-cad.eecs.berkeley.edu:80/Software/software.html The packge is SPICE, which is an electronic circuit simulator. Spice3f4 in particular. Download the Spice3f4 kit. Unpack it. The entire package is in src/lib/sparse. Andy L.
Perhaps next time I should dig on the web a little more ... On Tue, 8 Jan 2002, Travis Oliphant wrote:
I'd be interested in the package you are talking about.
Also available as a separate package, http://buffy.eecs.berkeley.edu/IRO/Software/Catalog/Description/sparse1.3.ht... -a
Travis, Here is some of the most recent stuff I've found on sparse matricies. http://buffy.EECS.Berkeley.EDU/IRO/Summary/01abstracts/chapter18index.html http://buffy.EECS.Berkeley.EDU/IRO/Summary/01abstracts/ejr.1.html Andy L.
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Andrew P. Lentvorski -
Travis Oliphant