---

Sp1FloatSMatrix.hpp

#ifndef __Sp1FloatSMatrix_H__
#define __Sp1FloatSMatrix_H__


#include <stdio.h>
#include "FloatVector.hpp"

#include "AFSymMatrix.hpp"

class Sp1FloatSMatrix : public AFSymMatrix
{
protected:

int                     nItems, maxItems;

int*                    ia;
int*                    ja;
float*          data;

public:
        
Sp1FloatSMatrix(int w, int nmax);
Sp1FloatSMatrix(const Sp1FloatSMatrix& m);
Sp1FloatSMatrix operator=(const Sp1FloatSMatrix& m);

virtual ~Sp1FloatSMatrix()
        {
        delete[] ia;
        delete[] ja;
        delete[] data;
        }

virtual AFloatMatrix* copy();
virtual AFloatMatrix* t(AFloatMatrix* result=0){return 0;}

// no diagonal
virtual AFSymMatrix* copyL0();                          
virtual AFSymMatrix* copyU0();
// with diagonal
virtual AFSymMatrix* copyL();                           
virtual AFSymMatrix* copyU();
// with unit diagonal
virtual AFSymMatrix* copyL1();                          
virtual AFSymMatrix* copyU1();

virtual int numberOfItems(){return nItems;}
virtual int getMaxItems(){return maxItems;}

virtual void addItem(int x,int y, float value=0);

virtual bool getItem(int index, int* x,int* y, float* value);
virtual bool setItem(int index, float value);

// base 0
virtual void set0(int i, int j, float value);
virtual float get0(int i, int j);

// base 1
virtual void set(int i, int j, float value){ set0(i-1,j-1, value); }
virtual float get(int i, int j){ return get0(i-1,j-1); }

// computations
virtual void setAll(float value=0.0);

virtual float det();
virtual float trace();

virtual float norme2();
virtual float sum();
virtual float sum2();
virtual float sigma(){return 0.0;}

virtual float minimum();
virtual float maximum();

// scalar single operations
void operator+=(float value);
void operator-=(float value);
void operator*=(float value);
void operator/=(float value);

virtual void add(float value);
virtual void subst(float value);
virtual void mult(float value);
virtual void div(float value);

virtual void add(AFloatMatrix& m){}
virtual void subst(AFloatMatrix& m){}

// u= A*v including implicit transposition
virtual FloatVector* mult_Av(FloatVector* v, FloatVector* result=0);
virtual FloatVector* mult_ATv(FloatVector* v, FloatVector* result=0);
// u= v*A
virtual FloatVector* mult_vA(FloatVector* v, FloatVector* result=0)     { return mult_ATv(v, result); }
virtual FloatVector* mult_vAT(FloatVector* vt, FloatVector* result=0){ return mult_Av(vt, result); }

// sub vector usage
// u= A*v
FloatVector* mult_Av(FloatVector* v, int col0, int row0, bool incremental=false, FloatVector* result=0);
FloatVector* mult_ATv(FloatVector* v, int col0, int row0, bool incremental=false, FloatVector* result=0);
// u= v*A
FloatVector* mult_vA(FloatVector* v, int row0, int col0, bool incremental=false, FloatVector* result=0)
                        { return mult_ATv(v, col0, row0, incremental, result); }
FloatVector* mult_vAT(FloatVector* vt, int row0, int col0, bool incremental=false, FloatVector* result=0)
                        { return mult_Av(vt, col0, row0, incremental, result); }

virtual void output();  
};

#endif



         

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Bernard De Cuyper: Open Project Leader: Concept, design and development. Bernard De Cuyper & Eddy Fraiha 2002, 2003. Bernard De Cuyper 2004. Open and free, for friendly usage only. Modifications on Belgium ground of this piece of artistic work, by governement institutions or companies, must be notified to Bernard De Cuyper.