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

Download multiple files from - send big files the easy way

or just copy and paste in your Mathematica sheet from here

Thank you in advance!