[Freegis-list] Help in calculation of eigenvalue and eigenvector

[Markus Neteler]

On Sat, Jul 27, 2002 at 08:12:56AM -0700, wang ruisheng wrote:
> Hi,
> 
> I am looking for some C codes for calculation of
> eigenvalue and eigenvector of a general matrix and
> I am very appreciated if you can give me some hints.
> 
> Thanks a lot
> 

Hi Ruisheng Wang,

you may study the file:

GRASS 5.0
./src/libes/gmath/eigen.c

which contains a function to calculate eigenvalues and eigenvectors.

CVS HTML interface URL:
http://freegis.org/cgi-bin/viewcvs.cgi/grass//src/libes/gmath/eigen.c?rev=1.2&content-type=text/vnd.viewcvs-markup

Maybe helpful?

Cheers

 Markus