517F1.html">chipcenter</a>.</em></li>
 </ol>
 <h3>Visually</h3>
 <table border="1" align="center" cellpadding="3">
 <tbody align="center">
 <tr>
     <td></td><th>0</th><th>1</th><th>2</th><th>3</th>
     <th>&hellip;</th>
     <th>n + 1</th>
 </tr>
 <tr>
     <th>0</th>
     <td>x<sub>0</sub></td>
     <td colspan="5" rowspan="5" align="center" valign="middle">
         &uarr;<br/>
         &larr; D<sub>top</sub> &rarr;<br/>
         &darr;
     </td>
 </tr>
 <tr><th>1</th><td>x<sub>1</sub></td></tr>
 <tr>