Hi,
I get this incorrect result for the following calculations:
(%i4) kill(all);
(%o0) done
(%i1) exp(-x^4);
(%o1) %e^-x^4
(%i2) integrate(%o1,x,minf,inf);
(%o2) gamma(1/4)/2
(%i3) integrate(%o1,x);
(%o3) -gamma_incomplete(1/4,x^4)*x/(4*abs(x))
(%i4) limit(%o3,x,inf)-limit(%o3,x,minf);
(%o4) 0
The limit should give the same answer as the more direct definite integral. I can?t take the analysis much further because I know very little about the gamma_incomplete function. It looks like a bug.
Rich