Yes, I did! One of the common reasons for the stiffness matrix to be ill-conditioned is due to improper application of the boundary conditions. I think this might be the case for me as well but I can't seem to figure out why my approach is incorrect. That is why I am asking for any feedback at...
Hi everyone,
I am writing my own FEM program solving a 2-D diffusion equation for work. My initial version of the code is working okay; however, the stiffness matrix is very ill-conditioned which I suspect is resulting in inaccurate solution. I suspect I have issues in the weak formulation of...
