Write a C Program Program For Multiplication of two matrices

 

Write a C Program Program For Multiplication of two matrices

#include<stdio.h>
#define ROW1 3
#define COL1 4
#define ROW2 COL1
#define COL2 2
int main(void)
{
	int mat1[ROW1][COL1],mat2[ROW2][COL2],mat3[ROW1][COL2];
	int i,j,k;
	printf("Enter matrix mat1(%dx%d)row-wise :\n",ROW1,COL1);
	for(i=0; i<ROW1; i++)
		for(j=0; j<COL1; j++)
			scanf("%d",&mat1[i][j]);
	printf("Enter matrix mat2(%dx%d)row-wise :\n",ROW2,COL2);
	for(i=0; i<ROW2; i++)
		for(j=0; j<COL2; j++)
			scanf("%d",&mat2[i][j] );
	/*Multiplication*/
	for(i=0; i<ROW1; i++)
		for(j=0; j<COL2; j++)
		{
			mat3[i][j] = 0;
			for(k=0; k<COL1; k++)
				mat3[i][j] += mat1[i][k] * mat2[k][j];
		}
	printf("The Resultant matrix mat3 is :\n");
	for(i=0; i<ROW1; i++)
	{
		for(j=0; j<COL2; j++)
			printf("%5d",mat3[i][j]);
		printf("\n");
	}
	return 0;
}

Output

Enter matrix mat1(3x4)row-wise :
   36   38   40   42
   44   46   48   50
   52   54   56   58
Enter matrix mat2(4x2)row-wise :
12 13
14 15
16 17 
18 19
The Resultant matrix mat3 is :
 2360 2516
 2840 3028
 3320 3540