dt>
<dd><p>numeric scalar denoting the number of outer iterations during
            the quasi-Newton phase; default is 15. In each outer iteration the locations
            of the quadrature points are updated.</p></dd>

        <dt>iter_qN</dt>
<dd><p>numeric scalar denoting the starting number of iterations for the
            quasi-Newton; default is 10.</p></dd>

        <dt>iter_qN_incr</dt>
<dd><p>numeric scalar denoting the increment in <code>iter_qN</code> for
            each outer iteration; defa