><a name="l00053"></a><span class="lineno">   53</span>&#160;                        X2 x2, Y2 y2, Z2 z2,</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;                        X3 x3, Y3 y3, Z3 z3);</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;                template &lt;typename V1, typename V2, typename V3&gt;</div>
<div class="line"><a name="l00