[Scipy-tickets] [SciPy] #1309: scipy.linalg.eigh fails with "the leading minor of order 5 of 'b' is not positive definite."

SciPy Trac scipy-tickets@scipy....
Sat Oct 16 12:01:49 CDT 2010


#1309: scipy.linalg.eigh fails with "the leading minor of order 5 of 'b' is not
positive definite."
--------------------+-------------------------------------------------------
 Reporter:  nicki   |       Owner:  somebody
     Type:  defect  |      Status:  new     
 Priority:  normal  |   Milestone:  0.9.0   
Component:  Other   |     Version:  0.8.0   
 Keywords:          |  
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 Hi all,

 I have this perfectly symmetric generalized eigenvalue problem
 ''A*x=lambda B*x'' here, fully real valued, and it solves find with
 {{{eig}}}.
 Trying {{{eigh()}}}, which is designed for these problems, fails.
 Example code attached.

 Cheers,
 Nico

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Ticket URL: <http://projects.scipy.org/scipy/ticket/1309>
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