tet_mesh_q2l_test, a C++ code which calls tet_mesh_q2l(), which reads information describing a tet mesh of a set of points using 10-node ("quadratic") triangles, and creates a 4-node ("linear") tet mesh.
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tet_mesh_q2l, a C++ code which reads information about a 10-node (quadratic) tet mesh and creates data defining a corresponding 4-node (linear) tet mesh;