F4 - Calculator tast.py

#Defining The Calculator Operations And Their Functions.
def add(x,y):
    return x + y

def subtract(x,y):
    return x - y

def multiply(x,y):
    return x * y

def divide(x,y):
    return x / y

def power(x,y):
    return x ** y

#Welcome & Instructions Text.
print("Welcome To Mark's Helpful Calculator!\nThe Operations That Are Available Are:")
print("1.Addition(+)\n2.Subtraction(-)\n3.Multiplication(*)\n4.Division(/)\n5.Exponent(^)")
input("\nPress Enter to Start")

#Defining The Calculation Function, Asking For The User's Input & Error Handling.
def calculate():
    x = float(input("\nEnter Your First Number: "))
    y = float(input("Enter Your Second Number: "))         
    operation = input("Enter Your Operation Of Choice: ")
    
    if operation in ('+', '-', '*', '/', '^'):
        if operation == '+':
            Answ1 = add(x, y)
            print(f"Answer: {x} + {y} = {Answ1}")
                   
        elif operation == '-':
            Answ2 = subtract(x, y)
            print(f"Answer: {x} - {y} = {Answ2}")
                   
        elif operation == '*':
            Answ3 = multiply(x, y)
            print(f"Answer: {x} x {y} = {Answ3}")
                   
        elif operation == '/':
            Answ4 = divide(x, y)
            print(f"Answer: {x} / {y} = {Answ4}")
                   
        elif operation == '^':
            Answ5 = power(x, y)
            print(f"Answer: {x} ^ {y} = {Answ5}")
                    
        else:
            print("ERROR 'Invalid Operation'")
            calculate()
        
        rerun()


#Asking If The User Wants To Continue Or Stop Using The Calculator.    
def rerun():

    run_again = input("\nWould you like to calculate again?\nPlease Type Y for Yes or N for No: ")
      
    if run_again.upper() == "Y":
        calculate()

    elif run_again.upper() == "N":
        print("Good Luck!")
        quit()

    else:
        rerun()

calculate()