Multiple.cpp

#include<iostream>
using namespace std;
void main( )
{
int mat1 [3][3], mat2[3][3],mat3[3][3], i ,j, k, sum; 
clrscr( ) ;
cout<<"\nEnter values for first 3 x 3 matrix:\n";
    for ( i = 0 ; i <= 2 ; i++ )
    {
      for (j = 0 ; j <= 2 ; j++ )
        cin>>mat1 [i][j] ;
    }
cout<<"\n Enter values for second 3 x 3 matrix:\n";
    for ( i = 0 ; i <= 2 ; i++ )
    {
    for ( j = 0 ; j <= 2 ; j++ )
        cin>>mat2[i][j] ;
    }
cout<<"\n The first 3 x 3 matrix entered by you is:\n";
    for ( i = 0 ; i <= 2 ; i++ )
    {
        for ( j = 0 ; j <= 2 ; j++ )
            cout<<"\t"<< mat1[i][j] ;
            cout<<"\n";
    }
cout<<"\n the second 3 x 3 matrix entered :\n";
    for ( i = 0 ; i <= 2 ; i++ )
    {
        for ( j = 0 ; j <= 2 ; j++ )
        cout<<"\t"<< mat2[i][j] ;
        cout<<"\n";
    }
    for ( i = 0 ; i <= 2 ; i++ )
    {
        for ( j = 0 ; j <= 2 ; j++ )
        {
            sum = 0;
        for ( k = 0 ; k <=2 ; k++ )
        sum = sum + mat1 [i][k] * mat2[k][j];
        mat3[i][j] = sum ;
		}
	}
cout<<"\nThe product of the above two matrices is:\n";
        for ( i = 0 ;i<= 2 ; i++ )
         {
             for ( j = 0 ; j <= 2 ; j++ )
            {
                cout<<"\t"<<mat3[i][j] ;
                cout<<"\n";
            }
cout<<"\n Press any key to exit.";
        getch( ) ;
}
}