plied Closed</td>
          <td>UC</td>
          <td>Moderate Linear</td>
          <td>?</td>
          <td>?</td>
        </tr>
      </table>
    </p>

    <p>
      For a given family, a growth rule can be prescribed, which determines
      the orders O of the sequence of rules selected from the family.  The
      selected rules are indexed by L, which starts at 0.  The polynomial precision P
      of the rule is sometimes used to determine the appropriate order O.
      <table border=1>
        <tr>
 