Ask Your Question

Revision history [back]

click to hide/show revision 1
initial version

With the algorithm set to mathematica_free, Sage is returning the antiderivative even though you are asking for the improper integral. You can get the improper integral by doing the following:

f=integral(log(x)/(x^2 - 1),x,algorithm='mathematica_free')
limit(f,x=oo)-limit(f,x=0)

This returns pi^2/4.