[SciPy-dev] [arpack] eigen_symmetric and the sigma value

[Aric Hagberg]

On Thu, Feb 28, 2008 at 02:35:50PM +0100, Matthieu Brucher wrote:
> Is there any plan of adding the support of the sigma keyword, like it is
> done in Matlab (http://www.mathworks.com/access/helpdesk/help/techdoc/ref/**
> eigs.html) ?

Yes, it's on my TODO list.  It would be good to implement most, if not
all, of the shift-invert spectral transform modes along with the
generalized eigenproblem modes.  The current tickets are
http://www.scipy.org/scipy/scipy/ticket/231
and 
http://www.scipy.org/scipy/scipy/ticket/418

Any help is welcome.

Aric