Eigenvalues again. For structural dynamics it is the generalised Eigenvalue problem that is needed, the solution to
(A - w B) r = 0 where A and B are real square matrices, w the eigenvalue and r is the eigenvector. DGEGV computes for a pair of n-by-n real nonsymmetric matrices A and B, the generalized eigenvalues and optionally the left and/or right generalized eigenvectors (VL and VR). It has not yet been implemented. Can anyone help, please? I've looked at what is needed and reckon I am not equipped to try to do it myself yet. Regards Graham Parkhouse ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
