<dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramtype">string</td><td class="paramname">$right_operand</td><td></td></tr>
  </table>
  </dd>
</dl>
<p>The right operand, as a string. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramtype">int</td><td class="paramname">$scale</td><td>[optional] </td></tr>
  </table>
  </dd>
</dl>
<p>This optional parameter is used to set the number of digits after the decimal place in the result. If omitte