MATH_EigenFunction.h

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#ifndef MATH_EigenFunction_H
#define MATH_EigenFunction_H


#include "MATH_StiefelFunction.h"
#include "LAP_DoubleFullSymmetricMatrix.h"

DEFINE_SPTR(MATH_EigenFunction);
DEFINE_SVPTR(MATH_EigenFunction);
class MATH_EigenFunction: public virtual MATH_StiefelFunction {
    SP_OBJECT(MATH_EigenFunction);
    // ATTRIBUTES

private:

    // the matrix A in the definition of the function
    // F(x) = -0.5*Tr(X'*A*X);
    SP::LAP_DoubleFullSymmetricMatrix mA;
  
protected: 
    // METHODS
  
    // CONSTRUCTORS 
  
    MATH_EigenFunction(void);
  
  
  
    // DESTRUCTORS 
  
  
    virtual ~MATH_EigenFunction(void);   
  

public:
   

    // NEW Method

    inline static SP::MATH_EigenFunction New() {
        SP::MATH_EigenFunction p(new MATH_EigenFunction(),MATH_EigenFunction::Delete());
        p->setThis(p);
        return p;
    }
 
 
    // SET methods 

    inline void setMatrix(SP::LAP_DoubleFullSymmetricMatrix m) {
        mA=m;
    }
public:
  

    virtual tReal computeFunction(const LAP_DoubleFullGeneralMatrix& X,LAP_DoubleFullGeneralMatrix& G);
  
 
    virtual tString toString() const;

};


#endif