**fem_to_mesh_test**,
a MATLAB code which
calls fem_to_mesh(), which
reads a pair of FEM files defining the node coordinates and elements
of a finite element mesh, and rewrites the data as a MESH file.

fem_to_mesh, a MATLAB code which reads a set of FEM files defining the node coordinates, boundary nodes, and elements of a finite element mesh, and rewrites the data as a MESH file.

- fem_to_mesh_test.m, calls all the tests.
- fem_to_mesh_test.sh, runs all the tests.
- fem_to_mesh_test.txt, the output file.

**ELL** is a 2D L-shaped region, with a grid of 65 nodes
and 96 elements of order 3 triangles.

- ell_nodes.txt
- ell_elements.txt
- ell_elements.png, an image of the triangulation.
- ell_boundary_node_mask.txt
- ell.mesh, the MESH file.

**P01** is 3D FEM data for a rectangular channel of dimensions
3x1x1 physical units, using 584 nodes and 2568 tetrahedral elements.

- p01_nodes.txt, defines the FEM nodes.
- p01_elements.txt, defines the FEM elements.
- p01.png, an image of the mesh.
- p01_boundary_node_mask.txt
- p01.mesh, the MESH file.