def power():
#perform a power operation
print("You selected power.")
pow1 = user_input.num1()
pow2 = user_input.num2()
x = pow1**pow2
print("{} to the power of {} is {}").format(pow1, pow2, x)
def multiplication():
#perform multiplication
print("You selected multiplication.")
mul1 = user_input.num1()
mul2 = user_input.num2()
x = mul1 * mul2
print("{} * {} = {}").format(mul1, mul2, x)
def division():
#perform division
print("You selected division.")
div1 = user_input.num1()
div2 = float(user_input.num2())
x = div1 / div2
print("{} / {} = {}").format(div1, div2, x)
def subtraction():
#perform subtraction
print("You selected subtraction.")
sub1 = user_input.num1()
sub2 = user_input.num2()
x = sub1 - sub2
print("{} - {} = {}").format(sub1, sub2, x)
def addition():
#perform addition
print("You selected addition.")
add1 = user_input.num1()
add2 = user_input.num2()
x = add1 + add2
print("{} + {} = {}").format(add1, add2, x)
def pythagoras():
#perfrom pythagorian theorm
pyt1 = user_input.num1()
pyt2 = user_input.num2()
print("The third side of your right triangle is {}.").format(
sqrt((pyt1**2) + (pyt2**2)))