ss="identifier">lgammal</span><span class="special">(</span><span class="keyword">long</span> <span class="keyword">double</span> <span class="identifier">x</span><span class="special">);</span>
</pre>
<p>
      Returns the log of the gamma function of <span class="emphasis"><em>x</em></span>.
    </p>
<p>
      <span class="inlinemediaobject"><img src="../../equations/lgamm1.svg"></span>
    </p>
<p>
      See also <a class="link" href="sf_gamma/lgamma.html" title="Log Gamma">lgamma</a> for the
      full 