DFEM Diffusion Test-cases as Tutorials

Most of the DFEM diffusion test-cases are identical to the CFEM test-cases. Refer to the CFEM Diffusion Test-cases as Tutorial page.

One additional example may be of interest:

1. DFEM_Diffusion_2D_3b_analytical_coef_L2_error
   • description: method of manufactured solution for a diffusion-reaction problem with space-dependent material properties
   • feature of potential interest:
     • use of the analytical solution to compute the L2 error norm.