Re: [Help-gsl] svd inaccuracy
At Fri, 18 Aug 2006 19:38:07 +, Evan Drumwright wrote: I've been attempting to use the GSL (specifically, the svd function) to compute the pseudo-inverse of a potentially singular matrix. Unfortunately, the smaller singular values that I am getting (with both gsl_linalg_sv_decomp() or gsl_linalg_sv_decomp_jacobi()) are orders of magnitude off from the true result (computed and verified in octave). Could you post an example? If you want to submit a bug report please send all the details to [EMAIL PROTECTED] Thanks, -- Brian Gough Network Theory Ltd, Publishing the GSL Manual - http://www.network-theory.co.uk/gsl/manual/ ___ Help-gsl mailing list Help-gsl@gnu.org http://lists.gnu.org/mailman/listinfo/help-gsl
Re: [Help-gsl] Eigen value
At Sat, 19 Aug 2006 21:53:47 +0530, Hari Kumar wrote: Is there a routine to find out the eigen value of non-symmetric real matrix? This is under development for the next release. The current code is available from the CVS repository http://sources.redhat.com/gsl/devel.html -- best regards, Brian Gough Network Theory Ltd, Publishing the GSL Manual - http://www.network-theory.co.uk/gsl/manual/ ___ Help-gsl mailing list Help-gsl@gnu.org http://lists.gnu.org/mailman/listinfo/help-gsl
Re: [Help-gsl] Eigen value
Dear Gough, Thanks you for your reply. I needed that routine urgently so I switched to Numerical Recipe's code which is not free of course. But then quite often I find something is missing in free codes. I understand the problem and situation but in serious research application reliable and versatile library is necessary. I hope in few years GSL will achieve this. It should become like IMSL or NAG library. --Hari Brian Gough wrote: At Sat, 19 Aug 2006 21:53:47 +0530, Hari Kumar wrote: Is there a routine to find out the eigen value of non-symmetric real matrix? This is under development for the next release. The current code is available from the CVS repository http://sources.redhat.com/gsl/devel.html ___ Help-gsl mailing list Help-gsl@gnu.org http://lists.gnu.org/mailman/listinfo/help-gsl
