Re: [Help-gsl] eigenvectors of non symmetric matrix?

[Patrick Alken]

Please upgrade to version 1.9 or higher of the library so you can
access the nonsymmetric eigenvalue routines.

On Thu, Mar 06, 2008 at 05:08:30PM -0500, David Doria wrote:
> I am taking an outer product:
> 
> a b^T
> where a and b are column vectors.  Then I want the eigen values and vectors
> of the resulting matrix (called mat3).
> 
> I tried to use:
>     gsl_eigen_symmv_workspace * EigenWorkspace = gsl_eigen_symmv_alloc (2);
>     gsl_eigen_symmv (mat3, EigenValues, EigenVectors, EigenWorkspace);
> 
> but it gave the wrong results.  I guess this is because it was expecting a
> symmetric matrix? Is the only other choice to use:
>     gsl_eigen_hermv_workspace * EigenWorkspace = gsl_eigen_hermv_alloc (2);
>     gsl_eigen_hermv (mat3, EigenValues, EigenVectors, EigenWorkspace);
> 
> but for that, I'd have to first make mat3 a complex matrix (or so says the
> error haha)?
> 
> Please let me know.
> 
> -- 
> Thanks,
> 
> David
> _______________________________________________
> Help-gsl mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/help-gsl
>