How to make iteration for Newmark method in Mathematica 8
How to make iteration method for solving differential equations by Newmark method? There are just three equations which describe the Newmark method. I need q for time step for example 0.01. Also, for each time step, it is important to save matrix K0, because matrix K0 depends of q. You can find attached file here in .nb .pdf
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Thank you in advance!