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AnalyticalGradientCalculator.h
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1 // @(#)root/minuit2:$Id$
2 // Authors: M. Winkler, F. James, L. Moneta, A. Zsenei 2003-2005
3 
4 /**********************************************************************
5  * *
6  * Copyright (c) 2005 LCG ROOT Math team, CERN/PH-SFT *
7  * *
8  **********************************************************************/
9 
10 #ifndef ROOT_Minuit2_AnalyticalGradientCalculator
11 #define ROOT_Minuit2_AnalyticalGradientCalculator
12 
14 
15 namespace ROOT {
16 
17  namespace Minuit2 {
18 
19 
20 class FCNGradientBase;
21 class MnUserTransformation;
22 
24 
25 public:
26 
28 
30 
31 
32  virtual FunctionGradient operator()(const MinimumParameters&) const;
33 
35  const FunctionGradient&) const;
36 
37  virtual bool CheckGradient() const;
38 
39 private:
40 
43 };
44 
45  } // namespace Minuit2
46 
47 } // namespace ROOT
48 
49 #endif // ROOT_Minuit2_AnalyticalGradientCalculator
void fcn(Int_t &npar, Double_t *gin, Double_t &f, Double_t *par, Int_t iflag)
Definition: Ifit.C:26
virtual FunctionGradient operator()(const MinimumParameters &) const
AnalyticalGradientCalculator(const FCNGradientBase &fcn, const MnUserTransformation &state)
Extension of the FCNBase for providing the analytical Gradient of the function.
class dealing with the transformation between user specified parameters (external) and internal param...
interface class for gradient calculators