p>
<p>
            In the example above the function F takes a <code class="computeroutput"><span class="keyword">double</span><span class="special">&amp;</span></code> as its first parameter as the attribute
            of the <code class="computeroutput"><span class="identifier">double_</span></code> generator
            happens to be a <code class="computeroutput"><span class="keyword">double</span></code>.
          </p>
</td></tr>
</table></div>
<p>
          There are actually 2 more arguments being 