make calculator in python

input

def main():

     while True

     

        print("Calculator menu:"

        print("1. Addition"

        print("2. Subtraction"

        print("3. Multiplication"

        print("4. Division"

        print("5. Invert"

        print("6. Factorial"

        print("7. Power"

        print("8. Quit"

        choice = int(input("Enter your choice (1-8): ")


        if choice == 

            num1 = float(input("Enter first number: ")

            num2 = float(input("Enter second number: ")

            result = num1 + num

            print("Result:", result

        elif choice == 2

            num1 = float(input("Enter first number: ")

            num2 = float(input("Enter second number: ")

            result = num1 - num

            print("Result:", result

        elif choice == 3

            num1 = float(input("Enter first number: ")

            num2 = float(input("Enter second number: ")

            result = num1 * num

            print("Result:", result

        elif choice == 4

            num1 = float(input("Enter first number: ")

            num2 = float(input("Enter second number: ")

            result = num1 / num

            print("Result:", result

        elif choice == 5

            no = int(input("Enter a number: ")

            rem=

            rev=

            while no>0

             rem=no%1

             rev=rev*10+re

             no=no//1

            print("Result:", rev

        elif choice == 6

            num = int(input("Enter a number: ")

            result = 

            for i in range(2, num + 1)

                result *= 

            print("Result:", result

        elif choice == 7

            num = float(input("Enter a number: ")

            exponent = float(input("Enter exponent: ")

            result = num ** exponen

            print("Result:", result

        elif choice == 8

            print("BYE"

            brea

        else

            print("Invalid choice. Try again")



# out put




main()

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