Python-Repo/calculator.py at main · Maryam0330/Python-Repo · GitHub

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#define the functions needed: add, sub, mul, div
#print options to the user
#ask the user for values
#call the functions
#while loop to continue the program until the user wants to exit
def add(a, b):
    answer = a + b
    print(str(a) + " + " + str(b) + " = " + str(answer) + "\n")

def sub(a, b):
    answer = a - b
    print(str(a) + " - " + str(b) + " = " + str(answer) + "\n")

def mul(a, b):
    answer = a * b
    print(str(a) + " * " + str(b) + " = " + str(answer) + "\n")

def div(a, b):
    answer = a / b
    print(str(a) + " / " + str(b) + " = " + str(answer) + "\n")

while True:
    print("a. Addition")
    print("b. Subtraction")
    print("c. Multiplication")
    print("d. Division")
    print("e. Exit")
    print("")

    choice = input("Input your choice: ")

    if choice == 'a' or choice == 'A':
        print("Addition")
        a = int(input("Enter first number: "))
        b = int(input("Enter second number: "))
        add(a, b)
    elif choice == 'b' or choice == 'B':
        print("Subtraction")
        a = int(input("Enter first number: "))
        b = int(input("Enter second number: "))
        sub(a, b)
    elif choice == 'c' or choice == 'C':
        print("Multiplication")
        a = int(input("Enter first number: "))
        b = int(input("Enter second number: "))
        mul(a, b)
    elif choice == 'd' or choice == 'D':
        print("Division")
        a = int(input("Enter first number: "))
        b = int(input("Enter second number: "))
        div(a, b)
    else:
        choice == 'e' or choice == 'E'
        print ("Program ended")
        quit()