"classboost_1_1numeric_1_1ublas_1_1triangular__matrix_1_1iterator2.html">iterator2</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="a3d74101bec35f1b8b31385df12150130"></a><!-- doxytag: member="boost::numeric::ublas::triangular_matrix::iterator2::operator&#45;" ref="a3d74101bec35f1b8b31385df12150130" args="(const iterator2 &amp;it) const " -->
BOOST_UBLAS_INLINE difference_