"""This module contains tools for performing mathematical operations."""
from langchain_core.tools import tool

@tool
def add(x: float, y: float) -> float:
    """
    Adds two numbers.

    Args: 
        x (float): the first number
        y (float): the second number
    """
    return x + y

@tool
def subtract(x: float, y: float) -> float:
    """
    Subtracts two numbers.

    Args:
        x (float): the first number 
        y (float): the second number
    """
    return x - y

@tool
def multiply(x: float, y: float) -> float:
    """
    Multiplies two numbers.

    Args:
        x (float): the first number
        y (float): the second number
    """
    return x * y

@tool
def divide(x: float, y: float) -> float:
    """
    Divides two numbers.

    Args:
        x (float): the first number
        y (float): the second number to divide by
    """
    if y == 0:
        raise ValueError("Cannot divide by zero")
    return x / y

@tool
def modulus(x: float, y: float) -> float:
    """
    Returns the remainder when x is divided by y.

    Args:
        x (float): the dividend
        y (float): the divisor
    """
    if y == 0:
        raise ValueError("Cannot compute modulus with zero divisor")
    return x % y

@tool
def power(x: float, y: float) -> float:
    """
    Raises x to the power of y.

    Args:
        x (float): the base number
        y (float): the exponent
    """
    return x ** y

@tool
def sqrt(x: float) -> float:
    """
    Returns the square root of x.

    Args:
        x (float): the number to find the square root of
    """
    if x < 0:
        raise ValueError("Cannot compute square root of negative number")
    return x ** 0.5