name="l00066"></a><span class="lineno">   66</span>                             Eigen::Vector&lt;T, 3&gt;&amp; t0,</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span>                             Eigen::Vector&lt;T, 3&gt;&amp; t1,</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span>                             Eigen::Vector&lt;T, 3&gt;&amp; t2);</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</spa