Question about code

Hi,
I am new to fenics and I try to learn. I need a code which have not a problem and work perfect. Because I don’t knowhow I correct it. It may be related to a Heat problem or anything.
Thank you all.

I try to show with Paraview.

Hi,
You can find documented and undocumented demos in the FEniCS repository. Also note that there are several tutorials and books available on this subject, see: FEniCS tutorial, which is compatible with dolfin 2016.2.0

Yes I see the tutorials but they don’t run perfect. they have problems

They run perfectly if you use the appropriate version of dolfin (2016.2.0), which you can obtain by using for instance docker.

All the demos in the FEniCS repository run without errors for the latest version of dolfin.