techniques.
    </p>

    <p>
      <a href = "../../m_src/triangle_symq_rule/triangle_symq_rule.html">
      TRIANGLE_SYMQ_RULE</a>,
      a MATLAB library which
      returns efficient symmetric quadrature rules, 
      with exactness up to total degree 50,
      over the interior of an arbitrary triangle in 2D,
      by Hong Xiao and Zydrunas Gimbutas.
    </p>

    <p>
      <a href = "../../m_src/triangle_wandzura_rule/triangle_wandzura_rule.html">
      TRIANGLE_WANDZURA_RULE</a>, 
      a MATLAB libr