Program to print Lower triangular and Upper triangular matrix of an array

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(" ");

def upper(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("Lower triangular matrix: ");

lower(matrix, row, col);

print("Upper triangular matrix: ");

upper(matrix, row, col);