50g group photo

Yahoo Groups archive

50g

Archive for 50g.

Index last updated: 2026-03-30 00:59 UTC

Thread

Eigenvalues and Eigenvectors , EGV function .

Eigenvalues and Eigenvectors , EGV function .

2009-07-16 by mspokkio

Hello , I have a question regarding EGV function .
I've to calculate EGV (values and vectors )of a matrix like :
[K]-a[M] and not [K]-a[I] where I is the identity matrix , M is a diagonal matrix different from the identity one ( mass matrix ), a is the general eigenvalue ( usually called Lambda ) , K is a rigidity matrix .
If I calculate EGV(K) I can only have the eigen values/vectors of K-a[I] .
Is there a way to calculate automatically eigenvalues/vectors of [K]-a[M] ?
Thanks