(void) ¶(const nonlinear_fcn) ¶(const nonlinear_fcn, const jacobian_fcn) ¶(const NLFunc &a) ¶NLFunc& operator = (const NLFunc &a) ¶nonlinear_fcn function (void) const; ¶NLFunc& set_function (const nonlinear_fcn f) ¶jacobian_fcn jacobian_function (void) const; ¶NLFunc& set_jacobian_function (const jacobian_fcn j) ¶