s a pointer to the function class with index <em class="parameter"><code>i</code></em>.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>i</code></em> :</span></p></td>
<td> index
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> an <em class="parameter"><code>OilFunctionClass</code></em>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
