On 8/16/06, Nils Wagner <[EMAIL PROTECTED]> wrote:
I did try pysparse a few years ago (I think right before sparse stuff came into scipy). I think there is probably an old post asking the list about sparse stuff and I think Travis had just written it and told me about it... can't remember. Can JDSYM just return the k lowest eigenvalues/eigenvectors?
Keith Goodman wrote:
> On 8/15/06, David Grant <[EMAIL PROTECTED]> wrote:
>
>
>> My idea is (if I have time) to write an eigs-like function in python
>> that will only perform a subset of what Matlab's eigs does for. It
>> will, for example, compute a certain number of eigenvalues and
>> eigenvectors for a real, sparse, symmetric matrix (the case I'm
>> interested in)
>>
>
>
AFAIK, pysparse (in the sandbox) includes a module that implements a
Jacobi-Davidson
eigenvalue solver for the symmetric, generalised matrix eigenvalue
problem (JDSYM).
Did someone test pysparse ?
--
David Grant
http://www.davidgrant.ca
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