D01RM_P0W_F C++ Header Example Program Results lower limit of integration (bound) = 0 upper limit of integration (Inf) = Infinity absolute accuracy requested = 0 relative accuracy requested = 0.0001 maximum number of subintervals = 20 approximation to the integral : 3.1416e+00 estimate of the absolute error : 2.6515e-05 number of function evaluations : 10