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Re: [Help-gsl] Generalized eigenvalues complex float
From: |
Marco Maggi |
Subject: |
Re: [Help-gsl] Generalized eigenvalues complex float |
Date: |
Thu, 25 Mar 2010 08:08:04 +0100 |
>>> I'm new to GSL and I was wondering whether it's possible
>>> to calculate Generalized Eigenvalues for a complex
>>> _float_ matrix with GSL.
Sorry, do you mean complex generalised hermitian-definite
eigensystems (which are in the GSL), or the general case of
complex matrix (which, AFAICT, are not)?
>> No it is only done in double precision.
>
>Would you guys look forward to have an implementation of
>this, or is there any (numerical?) reason why it does not
>exist?
I cannot speak for GSL maintainers, but this would be more
work of coding and maintenance for a feature which is
already available in LAPACK[1] (if I understand what you
need). Using CLAPACK imposes problems (row-major
vs. col-major storage), but it offers a lot of subroutines
ready now.
HTH
[1] <http://www.netlib.org/lapack/lug/node35.html>
--
Marco Maggi