Matrix Printing In C

This section will deal to enhance understanding matrix printing using loops and conditional statements. We shall print various matrices to learn how loops in C works.

Simple 3x3 Matrix Printing

#include <stdio.h>

int main()
{
   int i,j;

   for(i = 1; i <= 3; i++)
   {
      for(j = 1; j <= 3; j++)
         printf("1 ");

      printf("\n");
   }
   
   return 0;
}

The output should look like this −

1 1 1
1 1 1
1 1 1

Zero Matrix Printing

#include <stdio.h>

int main()
{
   int i,j;

   for(i = 1; i <= 3; i++)
   {
      for(j = 1; j <= 3; j++)
         printf("0 ");

      printf("\n");
   }
   
   return 0;
}

The output should look like this −

0 0 0
0 0 0
0 0 0

Unit Matrix Printing

#include <stdio.h>

int main()
{
   int i,j;

   for(i = 1; i <= 3; i++)
   {
      for(j = 1; j <= 3; j++)
      {
         if(i == j)
            printf("1 ");
         else
            printf("0 ");
      }
      
      printf("\n");
   }
   
return 0;
}

The output should look like this −

1 0 0
0 1 0
0 0 1

Reverse Diagonal Matrix

#include <stdio.h>

int main()
{
   int i,j;

   for(i=1;i<=3;i++)
   {
      for(j=1;j<=3;j++)
      {
         if(i+j==3+1)
            printf("1 ");
         else
            printf("0 ");
      }
      
      printf("\n");
   }
   
   return 0;
}

The output should look like this −

0 0 1
0 1 0
1 0 0 

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