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SquareGradient.h
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1 #ifndef FITNEWTON_SQUAREGRADIENT_H
2 #define FITNEWTON_SQUAREGRADIENT_H
3 
4 #include "FunctionGradHessian.h"
5 
6 #include <Eigen/Core>
7 
8 namespace FitNewton
9 {
11  {
12  public:
15 
16  // this class is intended to be used only with line-search, and so this function doesn't fill the Hessian, and really should not be called
17  bool calcValGradHessian(const Eigen::VectorXd& x, double& val, Eigen::VectorXd& grad, Eigen::MatrixXd& hessian);
18 
19  // fill the gradient of this function based on "function"
20  // this class represents the square of the magnitude of the gradient of "function",
21  // so we can calculate the val and grad from the val,grad,hessian of function
22  bool calcValGrad(const Eigen::VectorXd& x, double& val, Eigen::VectorXd& grad);
23 
24  FunctionGradHessian* Clone() const;
25 
26  bool verbose;
27 
28  protected:
30  };
31 }
32 
33 
34 
35 
36 #endif