[SciPy-Dev] Strange results by eigs

Jacob VanderPlas vanderplas@astro.washington....
Fri Oct 21 12:12:38 CDT 2011


>> The docstring of eigs is misleading in that context.
>>
>>        M must represent a real symmetric matrix.
>>
> Yep, it should say hermitian instead of real sym. here.

Actually, the piece of the documentation quoted here has to do with the second matrix supplied for the general eigenvalue problem.  This matrix (M) must be real symmetric, as desribed in the ARPACK function documentation
http://www.caam.rice.edu/software/ARPACK/UG/node137.html

   Jake



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