Question

Create a function that will perform addition, subtraction, multiplication and division.

Make sure to provide your file as a Python Notebook - use comments and python coding standards.

Answer 1

def add(n1, n2):
    return n1 + n2


def sub(n1, n2):
    return n1 - n2


def mul(n1, n2):
    return n1 * n2


def div(n1, n2):
    return n1 / n2


def main():
    while True:
        print('1) Addition\n2) Subtraction\n3) Multiplication\n4) Division\n5) Quit')
        choice = int(input('Enter you choice: '))
        if choice == 5:
            break
        n1 = float(input('Enter first number: '))
        n2 = float(input('Enter second number: '))
        if choice == 1:
            print(str(n1) + ' + ' + str(n2) + " = " + str(add(n1, n2)))
        elif choice == 2:
            print(str(n1) + ' - ' + str(n2) + " = " + str(sub(n1, n2)))
        elif choice == 3:
            print(str(n1) + ' * ' + str(n2) + " = " + str(mul(n1, n2)))
        elif choice == 4:
            print(str(n1) + ' / ' + str(n2) + " = " + str(div(n1, n2)))
        print()


if __name__ == '__main__':
    main()