Re: [eigen] ordering of eigenvalues of EigenSolver

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On Monday 21 February 2011 15:34:21 Susanne Suter wrote:
> I forgot to say, I'm only talking about real value problems

Even if a matrix has only real-valued entries, its eigenvalues are in general 
complex. For example, the eigenvalues of [0 -1 ; 1 0] are i and -i. Therefore, 
I think that sorting by absolute value is the only reasonable option.


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