จำลองการชำระเงินรายงวด (I)

# Loop through each mortgage payment period
for i in range(0, mortgage_payment_periods):
    
    # Handle the case for the first iteration
    if i == 0:
        previous_principal_remaining = ____
    else:
        previous_principal_remaining = ____
        
    # Calculate the interest and principal payments
    interest_payment = round(____*____, 2)
    principal_payment = round(____-____, 2)
    
    # Catch the case where all principal is paid off in the final period
    if previous_principal_remaining - principal_payment < 0:
        principal_payment = previous_principal_remaining
        
    # Collect the principal remaining values in an array
    principal_remaining[i] = previous_principal_remaining - principal_payment
    
    # Print the payments for the first few periods
    print_payments(i, interest_payment, principal_payment, principal_remaining)