ey"></td>
          <td></td>
          <td class="paramtype">&#160;</td>
          <td class="paramname"><em>$scale</em> = <code>0</code>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<p>Subtract one arbitrary precision number from another <a class="el" href="patch2_8txt.html#a3f9992ab8fa942ed02faa63682c3a84c">string $left_operand </a> The left operand, as a string. </p>
<dl class="params">