# This function adds two numbers def add(x, y): return x + y # This function subtracts two numbers def subtract(x, y): return x - y # This function multiplies two numbers def multiply(x, y): return x * y # This function divides two numbers def divide(x, y): return x / y print("Select operation.") print("1.Add") print("2.Subtract") print("3.Multiply") print("4.Divide") while True: # take input from the user choice = input("Enter choice(1/2/3/4): ") # check if choice is one of the four options if choice in ('1', '2', '3', '4'): try: num1 = float(input("Enter first number: ")) num2 = float(input("Enter second number: ")) except ValueError: print("Invalid input. Please enter a number.") continue if choice == '1': print(num1, "+", num2, "=", add(num1, num2)) elif choice == '2': print(num1, "-", num2, "=", subtract(num1, num2)) elif choice == '3': print(num1, "*", num2, "=", multiply(num1, num2)) elif choice == '4': print(num1, "/", num2, "=", divide(num1, num2)) # check if user wants another calculation # break the while loop if answer is no next_calculation = input("Let's do next calculation? (yes/no): ") if next_calculation == "no": break else: print("Invalid Input")
"The War of the Worlds" is a science fiction novel by H.G. Wells that has been adapted into different mediums, including a radio broadcast and multiple film adaptations. The most famous radio broadcast adaptation of "The War of the Worlds" was produced by Orson Welles and his Mercury Theatre group in 1938. The movie adaptations have also differed in various ways from the original novel and the radio broadcast. Here are some differences between the radio broadcast and the movie versions of "The War of the Worlds": Radio broadcast: 1. The radio broadcast was presented as a series of news bulletins interrupting regular programming, and it was done in a documentary style to make it sound like an actual news report. 2. The story is set in contemporary America, with the Martians landing in Grover's Mill, New Jersey. 3. The radio broadcast focuses on the experiences of ordinary people as they react to the Martian invasion and its aftermath. 4...
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