of the
<code>matrix_vector_range</code>.</td>
</tr>

<tr>
<td><code>const_reverse_iterator rbegin () const</code></td>
<td>Returns a <code>const_reverse_iterator</code> pointing to the
beginning of the <code>matrix_vector_range</code>.</td>
</tr>

<tr>
<td><code>const_reverse_iterator rend () const</code></td>
<td>Returns a <code>const_reverse_iterator</code> pointing to the
end of the reversed <code>matrix_vector_range</code>.</td>
</tr>

<tr>
<td><code>reverse_iterator rbegin ()</code> </td>
<td>Returns a