# C program to print the upper triangular matrix

Here, we are going to learn how to print the upper triangular matrix in C programming language?
Submitted by Nidhi, on July 15, 2021

Problem Solution:

Given a 3x3 matrix, we have to print the upper triangular matrix using C program.

Program:

The source code to print the upper triangular matrix is given below. The given program is compiled and executed using GCC compile on UBUNTU 18.04 OS successfully.

```// C program to print the upper triangular matrix

#include <stdio.h>

int main()
{
int Matrix[3][3] = {
{ 9, 8, 7 },
{ 5, 4, 6 },
{ 1, 2, 3 }
};

int i, j;

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

printf("\nUpper triangular matrix is: \n");
for (i = 0; i < 3; i++) {

for (j = 0; j < 3; j++) {
if (j >= i)
printf("%d ", Matrix[i][j]);
else
printf("  ");
}
printf("\n");
}
return 0;
}
```

Output:

```Matrix:
9 8 7
5 4 6
1 2 3

Upper triangular matrix is:
9 8 7
4 6
3
```

Explanation:

Here, we created a 3X3 matrix that contains integer elements. Then we printed matrix elements and the upper triangular matrix on the console screen.