MATRIX PROGRAM IN C

Sum of two Matrix

/* Sum of two Matrix */

#include<stdio.h>

int main()
{
  int a[5][5],b[5][5],c[5][5];
  int i,j;

  for(i=0;i<5;i++)
  {
    printf("\nEnter elements of %d row of first Matrix: ",i+1);
    for(j=0;j<5;j++)
      scanf("%d",&a[i][j]);
  }
  
  for(i=0;i<5;i++)
  {
    printf("\nEnter elements of %d row of 2nd Matrix: ",i+1);
    for(j=0;j<5;j++)
      scanf("%d",&b[i][j]);
  }
  
  printf("\nSum of Matrix:\n\n");
  for(i=0;i<5;i++)
  {
    for(j=0;j<5;j++)
    {
      c[i][j]=a[i][j]+b[i][j];
      printf("%3d ",c[i][j]);
    }
    printf("\n");
  }
  return 0;
}

Matrix Transpose




/* Transpose the matrix */
#include<stdio.h>

int main()
{
 int a[4][4],i,j,b;

 for(i=0;i<4;i++)
 {
  printf("\nEnter elements of %d row of Matrix: ",i+1);
  for(j=0;j<4;j++)
   scanf("%d",&a[i][j]);
 }
 
 for(i=0;i<4;i++)
 {
  for(j=i+1;j<4;j++)
  {
   b=a[i][j];
   a[i][j]=a[j][i];
   a[j][i]=b;
  }
 }

 printf("\nTransposed Matrix:\n\n");
 for(i=0;i<4;i++)
 {
  for(j=0;j<4;j++)
   printf("%4d",a[i][j]);
  printf("\n");
 }
 return 0;
}






Matrix Multiplication


/* Matrix multiplication */
#include<stdio.h>
int main()
{
 int arr1[3][3],arr2[3][3],arr3[3][3]={0},i,j,k;

 printf("Type a matrix of 3 rows & 3 colomns :\n");
 for(i=0;i<3;i++)
  for(j=0;j<3;j++)
   scanf("%d",&arr1[i][j]);
 
 printf("Type another matrix of 3 rows & 3 colomns :\n");
 for(i=0;i<3;i++)
  for(j=0;j<3;j++)
   scanf("%d",&arr2[i][j]);
 
 for(i=0;i<3;i++)
 {
  for(j=0;j<3;j++)
  {
   for(k=0;k<3;k++)
    arr3[i][j]=arr3[i][j]+arr1[i][k]*arr2[k][j];
  }

 }
 
 printf("\n\nOutput:\n");
 for(i=0;i<3;i++)
 {
  for(j=0;j<3;j++)
   printf("%5d",arr3[i][j]);
  printf("\n\n");
 }

 return 0;
}