mesh_test, a FENICS code which investigates some simple uses of the mesh objects and the various function calls that create them.
Finite element calculations begin by creating a discretized model of the geometry of a region. FENICS supplies a number of ways of creating a mesh, or of reading in a mesh created by an external program.
Note that I have installed FENICS using Docker, and so to run this script I issue the commands:
expression_test, a FENICS script which explores expression objects.