sion</a> .</li>
</ul>

<h4>Preconditions</h4>

<ul type="Disc">
<li><code>j &lt; data.size2 ()</code></li>
</ul>

<h4>Complexity</h4>

<p>Linear depending from the size of the column.</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 j = 0; j &lt; m.size2 (); ++ j) {<br>
        for (unsigned i = 0; i &l