[SciPy-dev] Scipy cannot handle singular eigenvalue problems

Pearu Peterson pearu at scipy.org
Wed Dec 10 15:35:17 CST 2003



On Wed, 10 Dec 2003, Nils Wagner wrote:

> Scipy cannot handle singular eigenvalue problems. Note, that both
> matrices
> are singular.
> 
> from scipy import *
> A = array(([1.,-1.],[-1.,1.]))
> B = array(([1.0,0.0],[0.0,0.0]))
> w,vr = linalg.eig(A,B)
> print w
> print vr
> 
> Traceback (most recent call last):
<snip>
> ValueError: matrices are not aligned for copy

This issue is now resolved in CVS. Thanks Travis!

Pearu



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