nag_opt_conj_grad (e04dgc) Example Program Optional Parameters Following options for e04dgc are read by e04xyc. begin e04dgc print_level = Nag_Soln /* Print solution only */ max_iter = 30 /* Set iteration limit */ verify_grad = Nag_CheckObj /* Check objective gradient components */ max_line_step = 1.0e+2 /* Maximum allowable step length */ f_est = 1.0 /* Estimate of optimal function value */ end