l of the form X_i, X_(i-1) and X_(i+1)
</br>
        </td>
      </tr>
      <tr>
        <td class="member-name">

          <code onmouseout="hideTip(event, '37', 37)" onmouseover="showTip(event, '37', 37)">
            Stencil5(code)
          </code>
          <div class="tip" id="37">
            <strong>Signature:</strong> (code:Expr&lt;(&#39;a -&gt; &#39;a -&gt; &#39;a -&gt; &#39;a -&gt; &#39;a -&gt; &#39;b)&gt;) -&gt; NeighbourMapping&lt;&#39;a,&#39;b&gt;<br />
                          <strong>Type