SymPy Gamma logo SymPy Gamma

integrate(1/(x**2%20%2B%201)%2C%20(x%2C%200%2C%20oo))
integrate(1/(x**2%20%2B%201)%2C%20(x%2C%200%2C%20oo))
specify dummy variables for oo*Mod(C*Mod(C*x, 2), 20)*Mod(C*Mod(1/Mod(B*Mod(x**2, 2), 201), 2), 20)
See what Wolfram|Alpha has to say.

Experiment with SymPy at SymPy Live.