Maryamvalian
commented
1 year ago Since you did not mention the section, I'm not sure if we are on the same page. But n is the number of joints. For example for a triangle truss n=3. Please feel free to open a new issue, if I misunderstood your point
Kind of a nitpicky point. As you said this is only 2D, you should specify $n$ is the dimensions or just replace it with a 2.