Sort complex modes by imaginary part rather than modulus (or by undamped frequency), it is more practical when spurious eigs enter the solution.
Sort complex modes by imaginary part rather than modulus (or by undamped frequency), it is more practical when spurious eigs enter the solution.

projectchrono/chrono,dariomangoni/chrono,dariomangoni/chrono,rserban/chrono,dariomangoni/chrono,rserban/chrono,projectchrono/chrono,projectchrono/chrono,projectchrono/chrono,rserban/chrono,rserban/chrono,dariomangoni/chrono,dariomangoni/chrono,rserban/chrono,projectchrono/chrono,projectchrono/chrono,rserban/chrono,dariomangoni/chrono,rserban/chrono