[SciPy-user] eigenvalues of sparse matrix

Robert Kern rkern at ucsd.edu
Tue Nov 16 17:09:42 CST 2004

Nick Arnett wrote:
> David Grant wrote:
>> Sorry, another sparse question: Is there anything is scipy which can 
>> find the eigenvalues and eigenvectors of a sparse matrix?
> Having read all the followups, it seems to me that I must be asking a 
> dumb question -- but won't linalg.svd do this?
> Begging for education, really...

An SVD is not the same as an eigen decomposition.


In any case, all of the linalg.* functions only operate on dense arrays, 
not sparse matrices.

Robert Kern
rkern at ucsd.edu

"In the fields of hell where the grass grows high
  Are the graves of dreams allowed to die."
   -- Richard Harter

More information about the SciPy-user mailing list