[Scipy-tickets] [SciPy] #231: A wrapper for ARPACK

SciPy scipy-tickets@scipy....
Wed Feb 6 12:50:24 CST 2008


#231: A wrapper for ARPACK
--------------------------+-------------------------------------------------
 Reporter:  nils          |        Owner:  somebody
     Type:  enhancement   |       Status:  new     
 Priority:  normal        |    Milestone:  0.7     
Component:  scipy.sparse  |      Version:          
 Severity:  normal        |   Resolution:          
 Keywords:                |  
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Comment (by aric):

 I moved the arpack wrappers from the sandbox to splinalg.eigen
 and updated the arpack.py wrapper, docstrings, and tests
 ([3987],[3988],[3989],[3990]).

 Tickets #366 and #554 can be closed with these updates.

 The issue of the wrong number of eigenvalues and eigenvectors in
 this ticket was a little more subtle than applying the patch above but I
 believe I have that fixed correctly.  See lines  248 and following in
 http://projects.scipy.org/scipy/scipy/browser/trunk/scipy/splinalg/eigen/arpack/arpack.py?rev=3897

 Ticket #418 (add shift modes) is not addressed in these changes.
 The addition of more solvler modes (shift and generalized
 eigenproblems) is yet to be done.

 There is still no high-level interface to arpack or other
 eigensolvers.  The proposal is for splinalg.eigen.speigs.

-- 
Ticket URL: <http://scipy.org/scipy/scipy/ticket/231#comment:21>
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