The frontend must be told which user functions accept parameter
structures by setting corresponding settings to true. The names
of these settings depend on which user functions are applicable to the
respective frontend and are shown in the following table.
| User function | Setting | Frontends |
|---|---|---|
| Objective function | objf_pstruct | nonlin_min |
| Gradient | grad_objf_pstruct | nonlin_min |
| Hessian | hessian_objf_pstruct | nonlin_min |
| Model function | f_pstruct | nonlin_residmin, nonlin_curvefit, residmin_stat, curvefit_stat |
| Jacobian | df_pstruct | nonlin_residmin, nonlin_curvefit, residmin_stat, curvefit_stat |
| General inequality constraints | f_inequc_pstruct | nonlin_min, nonlin_residmin, nonlin_curvefit |
| Jacobian of general inequality constraints | df_inequc_pstruct | nonlin_min, nonlin_residmin, nonlin_curvefit |
| General equality constraints | f_equc_pstruct | nonlin_min, nonlin_residmin, nonlin_curvefit |
| Jacobian of general equality constraints | df_equc_pstruct | nonlin_min, nonlin_residmin, nonlin_curvefit |