The exact integral 1/2*(erf(pi - 1/2*I) + erf(pi + 1/2*I))*sqrt(pi)*e^(-1/4)
contains *real* expression (erf(pi - 1/2*I) + erf(pi + 1/2*I)) but maxima/sage can't check that it is real In WolframAlpha one can check that Im[Erf[Pi-1/2*I]+Erf[Pi+1/2*I]] iz zero Andrzej Chrzeszczyk -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
