calculator.py

# Simple Calculator
# Calculator - Updated from GitHub Web Interface

def add(a,b):
        return a + b

def subtract(a,b):
        return a - b


def multiply(a,b):
        a * b

def divide(a,b):
        if b == 0:
                return "Error: Cannot divide by zero"
        return a / b

def power(a, b):
        return a ** b

# Work in progress
def new_feature():
        pass
# Critical fix

def square(a):
        """Return the square of a number"""
        return a**2

def cube(a):
        """Return the cube of a number"""
        return a**3

def percentage(value, percent):
    """Calculate percentage of a value"""
    return (value * percent) / 100

if __name__ == "__main__":
        print("Calculator loaded!")
        print('Calculator ready!')
        print(f"5 + 3 = {add(5,3)}")
        print(f"10 - 4 = {subtract(10, 4)}")
        print(f"5 squared = {square(5)}")
        print(f"3 cubed = {cube(3)}")