e row.</p>

<h4>Examples</h4>

<pre>
#include &lt;boost/numeric/ublas/matrix.hpp&gt;<br>
#include &lt;boost/numeric/ublas/io.hpp&gt;<br>
<br>
int main () {<br>
    using namespace boost::numeric::ublas;<br>
    matrix&lt;double&gt; m (3, 3);<br>
    for (unsigned i = 0; i &lt; m.size1 (); ++ i) {<br>
        for (unsigned j = 0; j &lt; m.size2 (); ++ j)<br>
            row (m, i) (j) = 3 * i + j;<br>
        std::cout &lt;&lt; row (m, i) &lt;&lt; std::endl;<br>
    }<br>
}<br>
</pre>

<h2><a name="matrix_co