nag_opt_lsq_deriv (e04gbc) Example Program Optional Parameters Following optional parameter settings are read by e04xyc begin e04gbc print_level = Nag_Soln_Iter_Full /* Results printout set to fullest detail */ /* Estimate minimum will be within 10 units of the * starting point. */ step_max = 10.0 optim_tol = 1.0e-06 /* Set required accuracy of solution */ end