gnum(y)/2]);
 (%o1) [abs(x),(abs(x)*abs(y))/2]
</pre></td></tr></table>
<p><b>To use</b> &lsquo;<tt>load(abs_integrate)</tt>&rsquo;
</p>
</dd></dl>

<dl>
<dt><a name="index-conditional_005fintegrate"></a><u>Function:</u> <b>conditional_integrate</b><i> (<var>e</var>, <var>x</var>)</i></dt>
<dd>
<p>For an integrand with one or more parameters, this function tries to determine an
antiderivative that is valid for all parameter values. When successful, this
function returns a conditional expression for the anti