Answer Posted / rohit v.kamlakar

/* Program for matrix multiplication using 2D array
9/20/08
By:-
rohit.born2code@gamil.com or
rohit_kamlakar@rediff.com

*/

#include<iostream.h>
#include<conio.h>
const size=10;
void main()
{
int a[size][size],b[size][size],c[size][size],n,m,i,j,k;
char v;
clrscr();
do
{
m=n=3;
cout<<"Enter a 3X3 matrix(1)\n";

for(i=0;i<m;i++)
{
for(j=0;j<n;j++)
{
cin>>a[i][j];
}
}
cout<<"Enter a 3X3 matrix(2)\n";

for(i=0;i<m;i++)
{
for(j=0;j<n;j++)
{
cin>>b[i][j];
}
}

for(i=0;i<m;i++)
{
for(j=0;j<n;j++)
{
c[i][j]=0 ;
for(k=0;k<n;k++)
{
c[i][j]=c[i][j]+(a[i][k]*b[k][j]);
}
}
}

cout<<"The product matrix is :"<<endl;

for(i=0;i<m;i++)
{
cout<<endl;
for(j=0;j<n;j++)
{
cout<<c[i][j]<<"\t";
}
}
cout<<"\nWanna do it again ? (y/n)";
cin>>v;
}
while(v=='y'||v=='Y');
getch();
}

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