#include <stdio.h> int main() { int matA[2][3], matB[3][4], matR[2][4]; int i,j,k; printf("Enter elements of first matrix of order 2 x 3 \n"); for(i=0;i<2;i++) { for(j=0;j<3;j++) { scanf("%d",&matA[i][j]); } } printf("Enter elements of second matrix of order 3 x 4 \n"); for(i=0;i<3;i++) { for(j=0;j<4;j++) { scanf("%d",&matB[i][j]); } } for(i=0;i<2;i++) { for(j=0;j<4;j++) { matR[i][j]=0; for(k=0;k<3;k++) { matR[i][j]=matR[i][j]+matA[i][k]*matB[k][j]; } } } printf("\nFirst Matrix is \n"); for(i=0;i<2;i++) { for(j=0;j<3;j++) { printf("%d\t",matA[i][j]); } printf("\n"); } printf("\nSecond Matrix is \n"); for(i=0;i<3;i++) { for(j=0;j<4;j++) { printf("%d\t",matB[i][j]); } printf("\n"); } printf("\nMatrix multiplication is \n"); for(i=0;i<2;i++) { for(j=0;j<4;j++) { printf("%d\t",matR[i][j]); } printf("\n"); } return 0; } 

Output:

Enter elements of the first matrix of order 2 x 3 3 9 7 1 5 4 Enter elements of the second matrix of order 3 x 4 6 2 8 1 3 9 4 0 5 3 1 3 First Matrix is 3 9 7 1 5 4 Second Matrix is 6 2 8 1 3 9 4 0 5 3 1 3 Matrix multiplication is 80 108 67 24 41 59 32 13