[MBDyn-users] Eigenanalysis Card: ARPACK??

David Cross (Civ, ARL/VTD) david.m.cross2 at us.army.mil
Tue Jul 6 18:12:32 CEST 2010

MBDyn Users,

I am using ARPACK for eigenanalysis of a 2D surface moving in 3D space.  
Regarding ARPACK's output, does it output the actual eigenvalues??  I 
have the geometry output and eigenvector output.  Do I have to use 
matrix output to calculate eigenvalues myself, or can ARPACK output them 
to the 'output.m' file??

Thank you for your time,

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