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