derivative.
</p>
<table><tr><td>&nbsp;</td><td><pre class="example">(%i1) conditional_integrate(cos(m*x),x);
(%o1) %if(m#0,sin(m*x)/m,x)

(%i2) conditional_integrate(cos(m*x)*cos(x),x);
(%o2) %if((m-1#0) %and (m+1#0),-((m-1)*cos((m+1)*x)+(m+1)*cos((m-1)*x))/(2*m^2-2),(sin(2*x)+2*x)/4)

(%i3) sublis([m=6],%);
(%o3) -(5*cos(7*x)+7*cos(5*x))/70

(%i4) conditional_integrate(exp(a*x^2+b*x),x);
(%o4) %if(a#0,-(sqrt(%pi)*%e^(-b^2/(4*a))*erf((2*a*x+b)/(2*sqrt(-a))))/(2*sqrt(-a)),%if(b#0,%e^(b*x)/b,x))
</pre></td></