gsl::multifit::nlinear::function_fdf::concept_fvv Struct Referenceabstract
This is an abstract base class. More...
#include <multifit_nlinear_function_fdf.hpp>
Collaboration diagram for gsl::multifit::nlinear::function_fdf::concept_fvv:
Public Member Functions | |
| virtual int | fvv (gsl::vector const &x, gsl::vector const &v, gsl::vector &fvv)=0 |
| The second directional derivatives. More... | |
Detailed Description
This is an abstract base class.
Its main purpose is to define the concept of a class whose objects can be used to construct a function object. Any class that implements concept_f and concept_fvv can be used in the constructor of function. This version allows gsl::vector instead of gsl_vector* with a small overhead.
Definition at line 109 of file multifit_nlinear_function_fdf.hpp.
Member Function Documentation
◆ fvv()
|
pure virtual |
The second directional derivatives.
This can be undefined in which case finite difference approximations are used.
- Parameters
-
x The parameter vector v The velocity vector fvv The result vector.
- Returns
- An integer that represents the error code; return 0 (GSL_SUCCESS) for success and some value from the exception class for failure.
The documentation for this struct was generated from the following file:
