integrate(1/(1-x))

-----maxima-bounces at math.utexas.edu wrote: -----

>Introducing?abs()?in?this?answer?is?done?in?order?to?get?around?the?fact?
>that students?don't?always?know?as?much?about?complex?numbers?as?Maxima.
>
>RJF

If I recall correctly, definite integration sets logabs to true--this causes bugs:

 (%i1) f : partfrac(1/((x+%i) * (x-%i)),x);
 (%o1) %i/(2*(x+%i))-%i/(2*(x-%i))

Wrong:

 (%i2) integrate(f,x,0,1);
 (%o2) 0

Correct:

 (%i6) integrate(f,x), logabs : false$
 (%i7) rectform(subst(x=1,%) - subst(x=0,%));
 (%o7) %pi/4


--Barton