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Matrix addition in C

Matrix addition in C: C program to add two matrices, i.e., compute the sum of two matrices and then print it. Firstly a user will be asked to enter the order of matrix (number of rows and columns) and then two matrices. For example, if a user input order as 2, 2, i.e., two rows and two columns and matrices as
First matrix:
1 2
3 4
Second matrix:
4 5
-1 5
then the output of the program (Summation of the two matrices) is:
5 7
2 9

Matrices are frequently used in programming to represent graph data structure, in solving equations and in many other ways.

Addition of two matrix in C

C program for matrix addition:

#include <stdio.h>
int main()
   int m, n, c, d, first[10][10], second[10][10], sum[10][10];
   printf("Enter the number of rows and columns of matrix\n");
   scanf("%d%d", &m, &n);
   printf("Enter the elements of first matrix\n");
   for (c = 0; c < m; c++)
      for (d = 0; d < n; d++)
         scanf("%d", &first[c][d]);
   printf("Enter the elements of second matrix\n");
   for (c = 0; c < m; c++)
      for (d = 0 ; d < n; d++)
         scanf("%d", &second[c][d]);
   printf("Sum of entered matrices:-\n");
   for (c = 0; c < m; c++) {
      for (d = 0 ; d < n; d++) {
         sum[c][d] = first[c][d] + second[c][d];
         printf("%d\t", sum[c][d]);
   return 0;

Download Add Matrix program.

Output of matrix addition C program:
Matrix addition in C program output

Similarly, we can create a program to subtract two matrices. You can also create a function to perform addition of two matrices.