def subtract(x, y): return x - y
else: print("Invalid Input")
while True: choice = input("Enter your choice(1/2/3/4): ") if choice in ('1', '2', '3', '4'): num1 = float(input("Enter first number: ")) num2 = float(input("Enter second number: ")) use a cabeca python 2 edicao download pdf
def calculator(): print("Welcome to the Simple Calculator") print("1. Addition") print("2. Subtraction") print("3. Multiplication") print("4. Division") def subtract(x, y): return x - y else:
def add(x, y): return x + y