In[2]:= NIntegrate[Sin[Pi x]/Log[x], {x, 2, Infinity}] NIntegrate::ploss: Numerical integration stopping due to loss of precision. Achieved neither the requested PrecisionGoal nor AccuracyGoal; suspect one of the following: highly oscillatory integrand or the true value of the integral is 0. If your integrand is oscillatory on a (semi-)infinite interval try using the option Method->Oscillatory in NIntegrate. 73 Out[2]= -5.68811 10