td>
      	<td>Ignore.</td>
      </tr>
      <tr>
      	<td rowspan=2><code>toString</code></td>
      	<td>base not an integer</td>
      	<td>Truncate to integer.<br />Ignore if not a number.</td>
      </tr>
      <tr>
      	<td>base out of range</td>
      	<td>Ignore.</td>
      </tr>
    </table>
    <p>
      <sup>*</sup>No error is thrown if the value is <code>NaN</code> or 'NaN'
    </p>
    <p>
      The message of a BigNumber Error will also contain the name of the
      method from which the 