tetrahedron_felippa_rule_test, a FORTRAN90 code which calls tetrahedron_felippa_rule(), which generates Felippa quadrature rules over the interior of a tetrahedron in 3D.
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tetrahedron_felippa_rule, a FORTRAN90 code which returns a Felippa quadrature rule for approximating integrals over the interior of a tetrahedron in 3D.