span></pre>
<p>
                  </p>
                </td>
<td>
                  <p>
                    Returns std::string containing elements.
                  </p>
                </td>
<td>
                </td>
<td>
                  <p>
                    string containing elements
                  </p>
                </td>
</tr>
</tbody>
</table></div>
<h6>
<a name="geometry.reference.de9im.de9im_matrix.h4"></a>
          <span class="phrase"><a name="geometry.reference.de9im.de9im_matrix.hea