Hi, I'm trying to look at the tangent matrix after running the tripod demo (demo_tripod.m) with linear = 0. Like this:
K = gf_mdstate_get(mds, 'tangent_matrix'); Unfortunately, this gives an all-zero sparse matrix: K = All zero sparse: 16764-by-16764 If I do the same thing with linear = 1, it works fine. Is this a known bug? Also, I've had to disable the source term in this demo to be able to have the solver converge for non-linear elasticity enabled. If I don't do it, the solver crashes. I'm assuming it doesn't converge. I am on Mac OSX (Tiger) with MATLAB version 7.4.0.287 (R2007a) and the latest getfem++ from the website (3.0.3). --nico -- Nico Galoppo :: http://www.ngaloppo.org _______________________________________________ Getfem-users mailing list [email protected] https://mail.gna.org/listinfo/getfem-users
