FunctionGradient.h

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// @(#)root/minuit2:$Id$
// Authors: M. Winkler, F. James, L. Moneta, A. Zsenei   2003-2005
 
/**********************************************************************
 *                                                                    *
 * Copyright (c) 2005 LCG ROOT Math team,  CERN/PH-SFT                *
 *                                                                    *
 **********************************************************************/
 
#ifndef ROOT_Minuit2_FunctionGradient
#define ROOT_Minuit2_FunctionGradient
 
#include "Minuit2/MnRefCountedPointer.h"
#include "Minuit2/BasicFunctionGradient.h"
 
namespace ROOT {
 
   namespace Minuit2 {
 
 
class FunctionGradient {
 
private:
 
public:
 
  explicit FunctionGradient(unsigned int n) :
   fData(MnRefCountedPointer<BasicFunctionGradient>(new BasicFunctionGradient(n)))  {}
 
  explicit FunctionGradient(const MnAlgebraicVector& grd) :
   fData(MnRefCountedPointer<BasicFunctionGradient>(new BasicFunctionGradient(grd))) {}
 
  FunctionGradient(const MnAlgebraicVector& grd, const MnAlgebraicVector& g2,
                   const MnAlgebraicVector& gstep) :
   fData(MnRefCountedPointer<BasicFunctionGradient>(new BasicFunctionGradient(grd, g2, gstep))) {}
 
  ~FunctionGradient() {}
 
  FunctionGradient(const FunctionGradient& grad) : fData(grad.fData) {}
 
  FunctionGradient& operator=(const FunctionGradient& grad) {
    fData = grad.fData;
    return *this;
  }
 
  const MnAlgebraicVector& Grad() const {return fData->Grad();}
  const MnAlgebraicVector& Vec() const {return fData->Vec();}
  bool IsValid() const {return fData->IsValid();}
 
  bool IsAnalytical() const {return fData->IsAnalytical();}
  const MnAlgebraicVector& G2() const {return fData->G2();}
  const MnAlgebraicVector& Gstep() const {return fData->Gstep();}
 
private:
 
  MnRefCountedPointer<BasicFunctionGradient> fData;
};
 
  }  // namespace Minuit2
 
}  // namespace ROOT
 
#endif  // ROOT_Minuit2_FunctionGradient