Write a program to multiply any two 3x3 matrices.

Source Code :

#include<stdio.h>

void main()

{

      int a[3][3],b[3][3],c[3][3],i,j;

      clrscr();

      printf("\nInput Matrix A : ");

      for(i=0;i<3;i++)

            for(j=0;j<3;j++)

                  scanf("%d",&a[i][j]);   //Input in Matrix A

      printf("\nInput Matrix B : ");

      for(i=0;i<3;i++)

            for(j=0;j<3;j++)

                  scanf("%d",&b[i][j]);   //Input in Matrix B

      for(i=0;i<3;i++)

            for(j=0;j<3;j++)

                 c[i][j]=a[i][j]*b[j][i]; //Multiplication

      printf("\nMultiplication of Matrix A & B : \n");

      for(i=0;i<3;i++)

      {

            printf("\n");

            for(j=0;j<3;j++)

            {

                printf("%d\t",c[i][j]); //Display Resultant Matrix

            }

      }

      getch();

}

Output :

Input Matrix A : 5 3 6 2 9 8 7 4 1

Input Matrix B : 4 2 1 3 5 6 9 8 7

Multiplication of Matrix A & B :

20    9     54

4     45    64

7     24    7