an class="special">(</span><span class="keyword">float</span> <span class="identifier">x</span><span class="special">,</span> <span class="keyword">float</span> <span class="identifier">y</span><span class="special">);</span>
   <span class="keyword">int</span>    <span class="identifier">calculate</span><span class="special">(</span><span class="keyword">int</span><span class="special">,</span> <span class="identifier">x</span><span class="special">,</span>  <span class="keyword">int</span> <span class="id