span><span class="keyword">double</span><span class="special">,</span> <span class="keyword">double</span><span class="special">)</span><span class="special">&gt;</span><span class="special">(</span><span class="string">"func_name"</span><span class="special">)</span><span class="special">;</span>
</pre>
<div class="note"><table border="0" summary="Note">
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<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../doc/src/images/note.png"></td>
<th align="left">Note</th