John Randall wrote: > Note that eigenvectors are only defined up to scalar > multiples.
Put differently: eigenvectors indicate direction but not distance. (For people wondering what eigenvectors are: the direction of an eigenvector is the direction of the dot product of the matrix and the eigenvector.) Sometimes people encode the eigenvalue in the length of the eigenvector but in many applications this is pointless (and inefficient). -- Raul ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
