there is only one function attached, this argument can be omitted.
        <p>
	    		Class: <tt>char</tt></p>
</td>
</tr>
</tbody>
</table>
<h2>Output Arguments</h2>
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<colgroup>
<col width="31%">
<col width="69%">
</colgroup>
<tbody>
<tr valign="top">
<td><tt>fval</tt></td>
<td>
<p></p>Function value at the point <tt>x</tt> over the <tt>PolyUnion</tt> 
         <tt>U</tt>.<p>
	    		Class: <tt>double</tt></p>
</td>
</tr>
<tr valign