rsen,<br>
          Moderate Degree Symmetric Quadrature Rules for the Triangle,<br>
          Journal of the Institute of Mathematics and its Applications,<br>
          Volume 15, Number 1, February 1975, pages 19-32.
        </li>
      </ol>
    </p>

    <h3 align = "center">
      Source Code:
    </h3>

    <p>
      <ul>
        <li>
          <a href = "i4_modp.m">i4_modp.m</a>
          returns the nonnegative remainder of I4 division.
        </li>
        <li>
          <a href = "i4_wrap.m">i4_