File list (Check if you may need any files):
FEM_Penalty Method\boundary.asv
..................\boundary.m
..................\directassemble.m
..................\input.xlsx
..................\inputt.xlsx
..................\reaction.m
..................\Result.xlsx
..................\solution.asv
..................\solution.m
..................\stiff.asv
..................\stiff.m
..................\stress.asv
..................\stress.m
..................\truss_3d.asv
..................\truss_3d.m
FEM_Penalty Method