[SciPy-user] Sparse matrix operations

David Grant david.grant at telus.net
Thu Nov 4 10:27:41 CST 2004


I thought there was a matvec() function there somewhere...

Dave

Nils Wagner wrote:

> Hi all,
>
> How can I compute the Rayleigh quotient
>
> R = x' A x/(x' B x),
>
> where A and B are sparse matrices.
>
> How do I compute the matrix vector product of a sparse matrix with a 
> vector ?
> Can I use dot(A,x) ?
>
>
> Nils
>
>
>
>
>
> _______________________________________________
> SciPy-user mailing list
> SciPy-user at scipy.net
> http://www.scipy.net/mailman/listinfo/scipy-user
>


-- 
David J. Grant
http://www.davidgrant.ca:81

-------------- next part --------------
A non-text attachment was scrubbed...
Name: david.grant.vcf
Type: text/x-vcard
Size: 177 bytes
Desc: not available
Url : http://www.scipy.net/pipermail/scipy-user/attachments/20041104/aa8cd7a2/david.grant.vcf


More information about the SciPy-user mailing list