A brief description of your project, outlining its purpose and key functionality.
A lightweight Python package that provides basic arithmetic operations, including addition, subtraction, multiplication, division, modulus, and exponentiation.

def add(a, b):
    """
    Adds two numbers together.
    
    Parameters:
    a (int or float): The first number.
    b (int or float): The second number.
    
    Returns:
    int or float: The sum of a and b.
    """
    return a + b

def sub(a, b):
    """
    Subtracts the second number from the first.
    
    Parameters:
    a (int or float): The number to be subtracted from.
    b (int or float): The number to subtract.
    
    Returns:
    int or float: The difference of a and b.
    """
    return a - b

def mul(a, b):
    """
    Multiplies two numbers together.
    
    Parameters:
    a (int or float): The first number.
    b (int or float): The second number.
    
    Returns:
    int or float: The product of a and b.
    """
    return a * b

def div(a, b):
    """
    Divides the first number by the second.
    
    Parameters:
    a (int or float): The dividend (numerator).
    b (int or float): The divisor (denominator).
    
    Returns:
    float: The result of dividing a by b.
    
    Raises:
    ZeroDivisionError: If b is zero.
    """
    return a / b

def mod(a, b):
    """
    Returns the remainder of the division of the first number by the second.
    
    Parameters:
    a (int or float): The dividend.
    b (int or float): The divisor.
    
    Returns:
    int or float: The remainder when a is divided by b.
    
