Problem with evaluation of integration



By the way:

 (%i1) load(abs_integrate)$
 (%i2) integrate(a^x,x);
 (%o2) a^x/log(a)

 (%i3) integrate(x*a^x,x);
 (%o3) ((log(a)*x-1)*%e^(log(a)*x))/log(a)^2

--Barton

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

>When?I'm?using?the?integrate?function?to?evaluate?an?expression,?sometimes
>Maxima?gives?me?a?value?after?calculation.?But?sometimes?it?just?gives?me
>a?formal?mathematical?expression.?For?example,?when?I?enter?this:

>integrate(e^(-x),x,1,5);