Below is a C program which takes two matrix form users to multiply them and print the results on the screen.

Product of Two Matrices Using C

Here is the source code of the program in C to Compute the Product of Two Matrices. This program is successfully compiled, and the output is also given below.

#include <stdio.h>

int main() {
  int row1, clum1, row2, clum2;
  int i, j, k;
  int A[8][8], B[8][8], C[8][8];
  printf("Please Enter Rows and Columns Of Mateix A : ");
  scanf("%d%d", & row1, & clum1);
  printf("\nPlease Enter Rows and Columns of Matrix B : ");
  scanf("%d%d", & row2, & clum2);
  if (clum1 != row2) {
    printf("\nNumber of Columns of A is not Equal to Number of Rows of Y ");
    scanf("\nso, It is not Possible to Multily Both matrixs ");
  } else {
    printf("\nPlease Enter Elements of A Matrix : ");
    for (i = 0; i < row1; i++) {
      for (j = 0; j < clum1; j++) {
        scanf("%d", & A[i][j]);
      }

    }
    printf("\nEnter elements of matrix B : ");
    for (i = 0; i < row2; i++) {
      for (j = 0; j < clum2; j++) {
        scanf("%d", & B[i][j]);

      }

    }
    for (i = 0; i < row1; i++) {
      for (j = 0; j < clum2; j++) {
        C[i][j] = 0;
        for (k = 0; k < row2; k++) {
          C[i][j] += A[i][k] * B[k][j];

        }
      }
    }
    printf("\nMultiplication Of Matrix :\n ");
    for (i = 0; i < row1; i++) {
      for (j = 0; j < clum2; j++) {
        printf("%d\t", C[i][j]);

      }
      printf("\n");

    }

  }
  return 0;
}

Output

Compute the Product of Two Matrices Using C

Program Explanation

The program starts execution from the main method, taking the number of row and columns of matrices to form the user. If the number of columns of matrix A is not equal to the number of rows of matrix B, then multiplication is not possible. Else, use nested for-loops to read the elements of matrices. Again, use nested for loop to multiply both matrices. And save the multiplied items in C-Array. After multiplication is done, print the Array C which is the multiplication of matrix A and B.

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Last modified: May 7, 2019