a id="l00158" name="l00158"></a><span class="lineno">  158</span> </div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span>  <span class="comment">// particle 2 as reference particle</span></div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span>  <a class="code hl_typedef" href="namespacenetdem.html#a510a89239abc51ed4d8d88ce7ee403df">Vec3d</a> pos_2, dpos_21, dpos_21_ref;</div>
<div class="line"><a id="l00161" name="l00161"></a><span class