some work on arpack

Albert Strasheim fullung at gmail.com
Sun Oct 22 09:20:36 CDT 2006


Hello all

> -----Original Message-----
> From: numpy-discussion-bounces at lists.sourceforge.net [mailto:numpy-
> discussion-bounces at lists.sourceforge.net] On Behalf Of Aric Hagberg
> Sent: Sunday, October 22, 2006 4:09 PM
> To: Discussion of Numerical Python
> Subject: Re: [Numpy-discussion] some work on arpack
> 
> On Sat, Oct 21, 2006 at 02:05:42PM -0700, Keith Goodman wrote:
> > Did you, or anybody else on the list, have any luck making a numpy
> > version of eigs?
> 
> I made a start at an ARPACK wrapper, see
> http://projects.scipy.org/scipy/scipy/ticket/231
> and the short thread at scipy-dev
> http://thread.gmane.org/gmane.comp.python.scientific.devel/5166/focus=5175
> 
> In addition to the wrapper there is a Python interface (and some tests).
> I don't know if the interface is like "eigs" - I don't use Matlab.

If you're interested in making an interface that looks like MATLAB's, you
can take a peek at:


> 
> It will give you a few eigenvalues and eigenvectors for the standard
> eigenproblem (Ax=lx) for any type of A (symmetric/nonsymmetric,
> real/complex,
> single/double, sparse/nonsparse).
> 
> The generalized and shifted modes are not implemented.
> I need to find some time (or some help) to get it finished.
> 
> Regards,
> Aric
> 
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