# include <iostream.h>
 # include   <stdlib.h>
 # include    <conio.h>

 /***********************************************************************///-----------------------------  Matrix  ------------------------------///***********************************************************************/class Matrix
 {
    private:
       float matrix_a[3][3];
       float matrix_b[3][3];
       float matrix_c[3][3];

    public:
       Matrix( );

       void get_matrix_a( );
       void get_matrix_b( );
       void multiply_matrices( );
       void show_result_Matrix( );
 };

 /***********************************************************************///----------------------------  Matrix( )  ----------------------------///***********************************************************************/

 Matrix::Matrix( )
 {
    for(int i=0;i<3;i++)
    {
       for(int j=0;j<3;j++)
       {
      matrix_a[i][j]=0;
      matrix_b[i][j]=0;
      matrix_c[i][j]=0;
       }
    }

    gotoxy(1,1);
    cout<<" ******************************************************************************"<<endl;
    cout<<" * * * * * * * * * * * * * *  Matrix  Multiplication  * * * * * * * * * * * * *"<<endl;
    cout<<" ******************************************************************************"<<endl;

    gotoxy(1,25);
    cout<<" ******************************************************************************";
 }

 /***********************************************************************///-------------------------  get_matrix_a( )  -------------------------///***********************************************************************/void Matrix::get_matrix_a( )
 {
    gotoxy(1,6);
    cout<<" Enter the values of the Matrix A row by row :\n "<<endl;

    cout<<"\t\t\t Ú               ¿"<<endl;
    cout<<"\t\t\t ³               ³"<<endl;
    cout<<"\t\t\t ³               ³"<<endl;
    cout<<"\t\t\t ³               ³"<<endl;
    cout<<"\t\t\t À               Ù"<<endl;

    gotoxy(18,10);
    cout<<" A  = "<<endl;

    int x=28;
    int y=9;

    for(int i=0;i<3;i++)
    {
       for(int j=0;j<3;j++)
       {
      gotoxy(x,y);
      cin>>matrix_a[i][j];

      x+=5;
       }

       x=28;
       y++;
    }
 }

 /***********************************************************************///-------------------------  get_matrix_b( )  -------------------------///***********************************************************************/void Matrix::get_matrix_b( )
 {
    gotoxy(1,15);
    cout<<" Enter the values of the Matrix B row by row :\n "<<endl;

    cout<<"\t\t\t Ú               ¿"<<endl;
    cout<<"\t\t\t ³               ³"<<endl;
    cout<<"\t\t\t ³               ³"<<endl;
    cout<<"\t\t\t ³               ³"<<endl;
    cout<<"\t\t\t À               Ù"<<endl;

    gotoxy(18,19);
    cout<<" B  = "<<endl;

    int x=28;
    int y=18;

    for(int i=0;i<3;i++)
    {
       for(int j=0;j<3;j++)
       {
      gotoxy(x,y);
      cin>>matrix_b[i][j];

      x+=5;
       }

       x=28;
       y++;
    }
 }

 /***********************************************************************///----------------------  multiply_matrices( )  -----------------------///***********************************************************************/void Matrix::multiply_matrices( )
 {
    for(int i=0;i<3;i++)
    {
       for(int j=0;j<3;j++)
       {
      floatvalue=0;
      float sum=0;

      for(int k=0;k<3;k++)
      {
         value=matrix_a[j][k]*matrix_b[k][j];
         sum+=value;
      }

      matrix_c[i][j]=sum;
       }
    }
 }

 /***********************************************************************///---------------------  show_result_Matrix( )  -----------------------///***********************************************************************/void Matrix::show_result_Matrix( )
 {
    clrscr( );

    gotoxy(1,1);
    cout<<" ******************************************************************************"<<endl;
    cout<<" * * * * * * * * * * * * * *  Matrix  Multiplication  * * * * * * * * * * * * *"<<endl;
    cout<<" ******************************************************************************"<<endl;

    gotoxy(1,6);
    cout<<" The values of Matrix A and B are :"<<endl;

    cout<<"\t\t Ú               ¿                  Ú               ¿"<<endl;
    cout<<"\t\t ³               ³                   ³               ³"<<endl;
    cout<<"\t\t ³               ³                   ³               ³"<<endl;
    cout<<"\t\t ³               ³                  ³               ³"<<endl;
    cout<<"\t\t À               Ù             À               Ù"<<endl;

    gotoxy(45,9);
    cout<<" B  = "<<endl;

    gotoxy(10,9);
    cout<<" A  = "<<endl;

    gotoxy(1,15);
    cout<<" The Product of Matrix A and B is :\n "<<endl;

    cout<<"\t\t\t Ú               ¿"<<endl;
    cout<<"\t\t\t ³               ³"<<endl;
    cout<<"\t\t\t ³               ³"<<endl;
    cout<<"\t\t\t ³               ³"<<endl;
    cout<<"\t\t\t À               Ù"<<endl;

    gotoxy(13,19);
    cout<<" A * B  = "<<endl;

    int x_1=20;
    int y_1=8;

    int x_2=55;
    int y_2=8;

    int x_3=28;
    int y_3=18;

    for(int i=0;i<3;i++)
    {
       for(int j=0;j<3;j++)
       {
      gotoxy(x_1,y_1);
      cout<<matrix_a[i][j];

      gotoxy(x_2,y_2);
      cout<<matrix_b[i][j];

      gotoxy(x_3,y_3);
      cout<<matrix_c[i][j];

      x_1+=5;
      x_2+=5;
      x_3+=5;
       }

       x_1=20;
       y_1++;

       x_2=55;
       y_2++;

       x_3=28;
       y_3++;
    }

    gotoxy(1,25);
    cout<<" ******************************************************************************";
 }

 int main( )
 {
    textmode(BW80);
    clrscr( );

    Matrix Obj;

    Obj.get_matrix_a( );
    Obj.get_matrix_b( );
    Obj.multiply_matrices( );
    Obj.show_result_Matrix( );

    getch( );
    return 0;
 }