**triangulation_t3_to_t4_test**,
a MATLAB code which
calls triangulation_t3_to_t4(), which
reads information
describing a triangulation of a set of points using 3-node
"T3" triangles, and create a 4-node "T4"
triangulation.

triangulation_t3_to_t4, a MATLAB code which reads information about a 3-node triangulation and creates data defining a corresponding 4-node triangulation (vertices + centroid);

- triangulation_t3_to_t4_test.m, calls all the tests.
- triangulation_t3_to_t4_test.sh, runs all the tests.
- triangulation_t3_to_t4_test.txt, the output file.

**EXAMPLE** is a simple set of example data:

- example_nodes.txt, the nodes for the 3-node triangulation.
- example_nodes.png, a PNG image of the nodes.
- example_elements.txt, the triangles for the 3-node triangulation.
- example.png, a PNG image of the elements.
- example_t4_nodes.txt, the nodes for the 4-node triangulation.
- example_t4_noes.png, a PNG image of the nodes.
- example_t4_elements.txt, the triangles for the 4-node triangulation.
- examples_t4.png, a PNG image of the elements.
- example.txt the output file.