from sympy.physics.mechanics import * LM = LagrangesMethod(L, [q1, q2]) LM.form_lagranges_equations() LM.mass_matrix
gives the *mass matrix* - which contains some coefficients. Why is there no: LM.stiffness_matrix giving the *stiffness matrix* - containing some other coefficients? Regards, Sven -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/27e9f601-a17c-447c-8c2a-a043c2d9ff82%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
