n class="comment">// a cases, the solution is degenerate and the roots of the characteristic</span>
<a name="l00597"></a>00597       <span class="comment">// equation contain a complex component.</span>
<a name="l00598"></a>00598       <span class="keywordflow">if</span>(std::isnan(T[0]) || std::isnan(T[1]) || std::isnan(T[2])){
<a name="l00599"></a>00599          std::cout &lt;&lt; <span class="stringliteral">"Fine tuning failed.\n"</span>; 
<a name="l00600"></a>00600          std::cout &lt;&lt; <span clas