 
          returns a 12 point quadrature rule for the unit triangle.
        </li>

        <li>
          <a href = "triangle_unit_volume.m">triangle_unit_volume.m</a>, 
          returns the volume of the unit triangle;
        </li>
      </ul>
    </p>

    <h3 align = "center">
      Examples and Tests:
    </h3>

    <p>
      <ul>
        <li>
          <a href = "triangle_felippa_rule_test.m">triangle_felippa_rule_test.m</a>, 
          runs all the tests.
        </li>
        <li>
          <a hr