E <a class="el" href="classboost_1_1numeric_1_1ublas_1_1matrix__column_1_1iterator.html">iterator</a> &amp;&nbsp;</td><td class="memItemRight" valign="bottom"><b>operator-=</b> (difference_type n)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="adee0df5db62373517b4671708db78ffb"></a><!-- doxytag: member="boost::numeric::ublas::matrix_column::iterator::operator&#45;" ref="adee0df5db62373517b4671708db78ffb" args="(const iterator &amp;it) const " -->
BOOST_UBLAS_INLINE di