rule.
        </li>
        <li>
          <a href = "lyness_rule_num.m">lyness_rule_num.m</a>
          returns the number of Lyness quadrature rules.
        </li>
        <li>
          <a href = "lyness_suborder.m">lyness_suborder.m</a>
          returns the suborders for a Lyness rule.
        </li>
        <li>
          <a href = "lyness_suborder_num.m">lyness_suborder_num.m</a>
          returns the number of suborders for a Lyness rule.
        </li>
        <li>
          <a href = "lyness_subrule