Method 1: Nested For Loops

for row in range(1, 10):
    for col in range(1, row + 1):
        print(f"{row}×{col}={row*col}", end='\t')
    print()

Method 2: Nested While Loops

row = 1
while row <= 9:
    col = 1
    while col <= row:
        print(f"{row}×{col}={row*col}", end='\t')
        col += 1
    print()
    row += 1

Method 3: Mixeed While-To Loop

row = 1
while row <= 9:
    for col in range(1, row + 1):
        print(f"{row}×{col}={row*col}", end=' ')
    print()
    row += 1

Method 4: Mixed For-While Loop

for multiplier in range(1, 10):
    multiplicand = 0
    while multiplicand < multiplier:
        multiplicand += 1
        print(f"{multiplier}×{multiplicand}={multiplier*multiplicand}", end=' ')
    print()

Method 5: Using a List Variable

digits = list(range(1, 10))
for row_val in digits:
    col_val = 1
    while col_val <= row_val:
        print(f"{row_val}×{col_val}={row_val*col_val}", end='\t')
        col_val += 1
    print()

Method 6: Recursive Function

def generate_table(current_row):
    if current_row > 9:
        return
    for col in range(1, current_row + 1):
        print(f"{col}×{current_row}={col*current_row}", end='\t')
    print()
    generate_table(current_row + 1)

generate_table(1)

Method 7: Single-Line Implementation

print('\n'.join([' '.join([f"{col}×{row}={row*col}" for col in range(1, row + 1)]) for row in range(1, 10)]))