DMatrix1x5.h

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class DMatrix1x5{
 public:
  DMatrix1x5(){
    for (unsigned int i=0;i<5;i++){
      mA[i]=0.;
    }
  }
  DMatrix1x5(double c1,double c2,double c3,double c4,double c5){
    mA[0]=c1;
    mA[1]=c2;
    mA[2]=c3;
    mA[3]=c4;
    mA[4]=c5;
  }
  ~DMatrix1x5(){};


  double &operator() (int col){
    return mA[col];
  } 
  double operator() (int col) const{
    return mA[col];
  }

  // Matrix multiplication:  (1x5) x (5x1)
  double operator*(const DMatrix5x1 &m2){
    return (mA[0]*m2(0)+mA[1]*m2(1)+mA[2]*m2(2)+mA[3]*m2(3)+mA[4]*m2(4));
  }

  // Matrix multiplication:  (1x5) x (5x5)
  DMatrix1x5 operator*(const DMatrix5x5 &m2){
    return 
      DMatrix1x5(mA[0]*m2(0,0)+mA[1]*m2(1,0)+mA[2]*m2(2,0)+mA[3]*m2(3,0)+mA[4]*m2(4,0),
       mA[0]*m2(0,1)+mA[1]*m2(1,1)+mA[2]*m2(2,1)+mA[3]*m2(3,1)+mA[4]*m2(4,1),
       mA[0]*m2(0,2)+mA[1]*m2(1,2)+mA[2]*m2(2,2)+mA[3]*m2(3,2)+mA[4]*m2(4,2),
       mA[0]*m2(0,3)+mA[1]*m2(1,3)+mA[2]*m2(2,3)+mA[3]*m2(3,3)+mA[4]*m2(4,3), 
       mA[0]*m2(0,4)+mA[1]*m2(1,4)+mA[2]*m2(2,4)+mA[3]*m2(3,4)+mA[4]*m2(4,4));
  }



  
  void Print(){
    cout << "DMatrix1x5:" <<endl;
    cout << "     |      0    |      1    |      2    |      3    |      4    |" <<endl;
    cout << "----------------------------------------------------------------------" <<endl;
    cout << "   0 |" ;
    for (unsigned int j=0;j<5;j++){
      cout <<setw(11)<<setprecision(4)<< mA[j]<<" "; 
    } 
    cout << endl;
  }      


 private:
  double mA[5];

};