Lower triangular matrix in c






C code to print or display lower triangular matrix


#include<stdio.h>
int main(){
  int a[3][3],i,j;
  float determinant=0;

  printf("Enter the 9 elements of matrix: ");
  for(i=0;i<3;i++)
      for(j=0;j<3;j++)
           scanf("%d",&a[i][j]);

  printf("\nThe matrix is\n");
  for(i=0;i<3;i++){
      printf("\n");
      for(j=0;j<3;j++)
           printf("%d\t",a[i][j]);
  }

   printf("\nSetting zero in upper triangular matrix\n");
   for(i=0;i<3;i++){
      printf("\n");
      for(j=0;j<3;j++)
           if(i<=j)
             printf("%d\t",a[i][j]);
           else
             printf("%d\t",0);
  }


   return 0;
}

Enter the 9 elements of matrix: 1
2
3
4
5
6
7
8
9

The matrix is

1       2       3
4       5       6
7       8       9
Setting zero in upper triangular matrix

1       2       3
0       5       6
0       0       9




Alogrithm:
**







6 comments:

ishaq arshu said...

thanxxxxxxxx

Anonymous said...

change the printf statement "upper triangular" this is for lower triangular

Anonymous said...

Not only the statement but also change the condition to i<j ........ not "i<=j" ..... Thank you for the programs .....

Marshal Soren said...

this programme dosn't give any output ,it shows 2 errors

Anonymous said...

lower triangular me zero

Priyanka Nalbalwar said...

how to replace 0 by # in matrix?