有误删除了

derwille

内容有误

tonnyw

How about this? Provide us with the finite element formulation so that we can read your code easily.
It could start with something like:
1. Governing equation of two-dimensional elasticity
2. Show us the functional
3. Show us the minimization
4. Show us the formulation of the element stiffness matrix
I'll give you more points.

Thanks.

tonnyw

I don't see why it is complicated to put the formulation here. Without listing detailed formulation here, it would be hard to read your code.