  <p>
                      Function
                    </p>
                  </th>
<th>
                    <p>
                      Implementation Notes
                    </p>
                  </th>
</tr></thead>
<tbody>
<tr>
<td>
                    <p>
                      pdf
                    </p>
                  </td>
<td>
                    <p>
                      Implemented in terms of the non-central beta PDF using the
                      relation:
                    </p>
       