Product of Matrices

#include<iostream.h>

#include<conio.h>

#include<process.h>



void main()
{
clrscr();
int A[10][10] , B[10][10] , P[10][10] , i, j, k, m, n, p, q;

cout<< "\n Enter the rows & column of Matrix A :;
cin>> m>> n;

cout<< "\n Enter the rows & column of Matrix  B :;
cin>> p>> q;

if(n ! = p)
{
cout<< "\n The Matrix Multiplication is impossible .";
 getch();
exit(1);
}

cout<< " \ n  Enter the elements for Matrix A :";
for(i = 0; i< m ; i++)

for(j = 0 ; j< n ; j++)
   cin >> A[i][j];

cout<< " \ n Enter the elements for Matrix B :";

for(i = 0; i< p ; i++)
for(j = 0 ; j< q ; j++)
  cin >> B[i][j];




/* ......Product ...... */

for(i = 0; i< m ; i++)
for(j = 0 ; j< q ; j++)
{


P[i][j] = 0;


for(k = 0; k< n ; k++)


P[i][j] = P[i][j] + A[i][k] * B[k][j];


}



cout<< "\n Matrix A : \n ";
for( i =0; i< m ; i++)
{ for(j = 0; j< n ; j++)
     cout<< A[i][j];
 cout<< endl;
}


cout<< "\n Matrix B: \n ";



for( i =0; i< p ; i++)
{ for(j = 0; j< q ; j++)
     cout<< B[i][j];
  cout<< endl;
}
cout<< "\n Product AXB : \n ";
for( i =0; i< m ; i++)
  { for(j = 0; j< q ; j++)
       cout<< P[i][j];
    cout<< endl;
  }


getch();

}

Write a program to obtain the product of the following matrices:

           5    9    -2
A =      8    0    5
           0    2    8




          2  4
B =     0   1
          1  3


A x B =      8     23
                21    47
                8     26
          

#include<iostream.h>

#include<conio.h>

#include<process.h>


void main()
{
clrscr();


int A[3][3] = { 5, 9, -2,
                     8,0,5 ,
                     0,2, 8 };


int B[3][2] = { 2,4 ,
                      0 , 1,
                      1,3 } ;


int P[3][2] , i, j, k;


/*  ......Product ...... */


for(i = 0; i< 3 ; i++)
for(j = 0 ; j< 2 ; j++)
{
  P[i][j] = 0;
for(k = 0; k< n ; k++)
 P[i][j] = P[i][j] + A[i][k] * B[k][j];
}




cout<< "\n Matrix A : \n ";


for( i =0; i< 3 ; i++)
{  for(j = 0; j< 3 ; j++)
       cout<<  A[i][j];
   cout<< endl;
}


cout<< "\n Matrix B: \n ";




for( i =0; i< 3 ; i++)
{ for(j = 0; j< 2 ; j++)
     cout<<  B[i][j];
cout<< endl;
}


cout<< "\n  Product AXB  : \n ";




for( i =0; i< 3 ; i++)
{ for(j = 0; j< 2 ; j++)
   cout<< P[i][j];
cout<< endl;
}


getch();


}