simple-calculator-py

# Program make a simple calculator
 
 # 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"):
         num1 = float(input("Enter first number: "))
         num2 = float(input("Enter second number: "))
 
         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))
         break
     else:
         print("Invalid Input")