>
<th>Parameter</th>
<th>Description</th>
<th>Default</th>
</tr>

<tr>
<td><code>M</code> </td>
<td>The type of matrix referenced.</td>
<td>&nbsp;</td>
</tr>
</tbody>
</table>

<h4>Model of</h4>

<p><a href="expression.htm#vector_expression">Vector Expression</a>
.</p>

<h4>Type requirements</h4>

<p>None, except for those imposed by the requirements of <a href=
"expression.htm#vector_expression">Vector Expression</a> .</p>

<h4>Public base classes</h4>

<p><code>vector_expression&lt;matrix_vector_range&lt;