nag_quad_1d_fin_gonnet_vec (d01rgc) Example Program Results (User-supplied callback f, first invocation.) a - lower limit of integration = -1.0000 b - upper limit of integration = 1.0000 epsabs - absolute accuracy requested = 0.00e+00 epsrel - relative accuracy requested = 1.00e-04 dinest - approximation to the integral = 3.8116 errest - estimate of the absolute error = 3.39e-04 nevals - number of function evaluations = 593