> <span class="identifier">upper</span><span class="special">()</span><span class="keyword">const</span><span class="special">;</span>
 <span class="special">};</span> <span class="comment">// class triangular_distribution</span>

<span class="special">}}</span> <span class="comment">// namespaces</span>
</pre>
<p>
          The <a href="http://en.wikipedia.org/wiki/Triangular_distribution" target="_top">triangular
          distribution</a> is a <a href="http://en.wikipedia.org/wiki/Continuous_distribution