Lower Triangular Matrix Program

#include <stdio.h>
int main() {
int rows=3, cols=3, i, j, matrix[3][3]={1,2,3,4,5,6,7,8,9};
printf("The Lower Triangular Matrix is: ");
for(i = 0; i < rows; i++){
printf("\n");
for(j = 0; j < cols; j++){
if(i >= j){
printf("%d\t ", matrix[i][j]);
}
else{
printf("0");
printf("\t");
}
}
}
return 0;
}

#include <iostream>
using namespace std; 
// lower triangular matrix 
void lower(int matrix[3][3], int row, int col) 
{ 
int i, j; 
for (i = 0; i < row; i++) 
{ 
for (j = 0; j < col; j++) 
{ 
if (i < j) 
{ 
cout << "0" << " "; 
} 
else
cout << matrix[i][j] << " "; 
} 
cout << endl; 
} 
} 
// Driver Code 
int main() 
{ 
int matrix[3][3] = {{1, 2, 3},  
{4, 5, 6},  
{7, 8, 9}}; 
int row = 3, col = 3; 
cout << "The Lower Triangular Matrix is: \n"; 
lower(matrix, row, col); 
return 0; 
} 

class LFC 
{ 
// method to form lower  
// triangular matrix 
static void lower(int matrix[][],  
int row, int col) 
{ 
int i, j; 
for (i = 0; i < row; i++) 
{ 
for (j = 0; j < col; j++) 
{ 
if (i < j) 
{ 
System.out.print("0" + " "); 
} 
else
System.out.print(matrix[i][j] + " "); 
} 
System.out.println(); 
} 
} 
public static void main(String args[]) 
{ 
int matrix[][] = {{1, 2, 3},  
{4, 5, 6},  
{7, 8, 9}}; 
int row = 3, col = 3; 
System.out.println("The Lower Triangular Matrix is: "); 
lower(matrix, row, col); 
} 
} 

def lower(matrix, row, col): 
for i in range(0, row): 
for j in range(0, col): 
if (i < j): 
print("0", end = " "); 
else: 
print(matrix[i][j],  
end = " " ); 
print(" "); 
matrix = [[1, 2, 3],  
[4, 5, 6],  
[7, 8, 9]]; 
row = 3; 
col = 3; 
print("The Lower Triangular Matrix is: "); 
lower(matrix, row, col);  

using System; 
class LFC 
{ 
// method to form lower  
// triangular matrix 
static void lower(int [,]matrix,  
int row, int col) 
{ 
int i, j; 
for (i = 0; i < row; i++) 
{ 
for (j = 0; j < col; j++) 
{ 
if (i < j) 
{ 
Console.Write("0" + " "); 
} 
else
Console.Write(matrix[i, j] + " "); 
} 
Console.WriteLine(); 
} 
} 
static public void Main () 
{ 
int [,]matrix = {{1, 2, 3},  
{4, 5, 6},  
{7, 8, 9}}; 
int row = 3, col = 3; 
Console.WriteLine("The Lower Triangular Matrix is: "); 
lower(matrix, row, col); 
} 
} 

// Function to form  
// lower triangular matrix 
function lower($matrix, $row, $col) 
{ 
$i; $j; 
for ($i = 0; $i < $row; $i++) 
{ 
for ($j = 0; $j < $col; $j++) 
{ 
if ($i < $j) 
{ 
echo "0" , " "; 
} 
else
echo $matrix[$i][$j] , " "; 
} 
echo "\n"; 
} 
} 
$matrix = array (array (1, 2, 3), 
array (4, 5, 6), 
array (7, 8, 9)); 
$row = 3; $col = 3; 
echo "The Lower Triangular Matrix is: \n"; 
lower($matrix, $row, $col);