[sage-support] Wrong indefinte integral

Hello, *Problem:* Sage 6.7 returns for integrate(x/(x^2+1),(x,0,infinity)) the result 0. This is obviously wrong, since x/(x^2+1) is positive betwwen 0 and Infinity. *What I found out by now:* I couldn't reproduce the error with any simpler function. The antiderivate of the function is cal

[sage-support] Bug in symbolic integral

Hi there, I want to compute the integral from 2 to 3 of the funktion f(x)=1/log(x)^2. Sage gives conflicting results for different ways to compute it: *numerical way* (double checked by Wolfram Alpha and Ma