c program to add two m x n matrices and store the results in a third
matrix.
#include<stdio.h>
#include<conio.h>
#define m 5
#define n 5
void main()
{
int i,j,k,a[m][n],b[m][n],c[m][n];
int m1,m2,n1,n2;
clrscr();
printf("\nEnter No Of Rows For A Matrix(less than 6)==");
scanf("%d",&m1);
printf("\nEnter No Of Columns For A Matrix(less than 6)==");
scanf("%d",&n1);
printf("\nEnter No Of Rows For B Matrix(less than 6)==");
scanf("%d",&m2);
printf("\nEnter No Of Columns For B Matrix(less than 6)==");
scanf("%d",&n2);
if(m1!=m2 || n1!=n2)
{
printf("\nPlease Enter Equal Rows And Equal Columns For Both Matrix\n");
getch();
exit(0);
}
else
{ printf("\nEnter Numbers For Matrix A\n");
for(i=0;i<m1;i++)
for(j=0;j<n1;j++)
scanf("%d",&a[i][j]);
printf("\nEnter Numbers For Matrix B\n");
for(i=0;i<m1;i++)
for(j=0;j<n1;j++)
scanf("%d",&b[i][j]);
for(i=0;i<m1;i++)
for(j=0;j<n1;j++)
c[i][j]=a[i][j]+b[i][j];
}
printf("\nMatrix After Addition\n");
for(i=0;i<m1;i++)
{
printf("\n");
for(j=0;j<n1;j++)
{
if(c[i][j]<10) //for alignment
printf("%d ",c[i][j]);
else
printf("%d ",c[i][j]);
}
}
getch();
}
/*Output
Enter No Of Rows For A Matrix(less than 6)==3
Enter No Of Columns For A Matrix(less than 6)==3
Enter No Of Rows For B Matrix(less than 6)==3
Enter No Of Columns For B Matrix(less than 6)==3
Enter Numbers For Matrix A
1
2
3
4
5
6
7
8
9
Enter Numbers For Matrix B
10
11
12
13
14
15
16
17
18
Matrix After Addition
11 13 15
17 19 21
23 25 27 */