import math

# simple operations, basic aritmethic


def add_numbers(num1, num2):
    print(num1 + num2)


def substract_numbers(num1, num2):
    print(num1 - num2)


def multiply_numbers(num1, num2):
    print(num1 * num2)


def divide_numbers(num1, num2):
    print(num1 / num2)


def pow_numbers(num1, num2):
    print(num1 ** num2)


def sqr_root(num1):
    print(math.sqrt(num1))


# trigonometry
def sin(num1):
    print(math.sin(num1))


def cos(num1):
    print(math.cos(num1))


def tan(num1):
    print(math.tan(num1))


def acos(num1):
    print(math.acos(num1))


def asin(num1):
    print(math.asin(num1))


def atan(num1):
    print(math.atan(num1))