MMSD_GaussianFDFunction.h

Go to the documentation of this file.

#ifndef MMSD_GaussianFDFunction_H
#define MMSD_GaussianFDFunction_H


#include "MATH_C1Function.h"
#include "MATH_DigammaFunction.h"


DEFINE_SPTR(MMSD_GaussianFDFunction);
class MMSD_GaussianFDFunction : public MATH_C1Function {
  SP_OBJECT(MMSD_GaussianFDFunction);
  
 public:
 

  // ATTRIBUTES
 private:
    //double mPSum;
    //double mPfWSum;
    //double mFxold;
    double mConstant;
  //
  // ASSOCIATIONS
  
 protected: 
  // METHODS
  
  // CONSTRUCTORS 
  
  MMSD_GaussianFDFunction(void);
  
  
  
  // DESTRUCTORS 
  
  
  virtual ~MMSD_GaussianFDFunction(void);   

  // NEW methods

 public:
  static inline SP::MMSD_GaussianFDFunction New() {
    SP::MMSD_GaussianFDFunction p(new MMSD_GaussianFDFunction(),
                                  MMSD_GaussianFDFunction::Delete());
    p->setThis(p);
    return p;
  };
  
  

   
  // GET methods
    inline void setParameters(const double& Psum,const double& PfWsum,const double& Fxold) {
        //mPSum=Psum;
        //mPfWSum=PfWsum;
        //mFxold=Fxold;
        mConstant=1+(PfWsum/Psum)+MATH_DigammaFunction::ComputeFunction(Fxold)-log(Fxold);
    }
     
  
  // OTHERS methods

    virtual tReal computeFunction(const tReal& x);
    
    virtual tReal computeFunctionDerivative(const tReal& x);
    
    
};

#endif