def alpha():
"""
This static method calculates the value of alpha
:return:nothing
"""
alpha = 2
precision = 6
pi = MathOperation.pi()
calculated_decimal_places = 1
for itr in range(0, precision):
original = alpha - MathOperation.sin(alpha) - pi / 2
prime = 1.0 - MathOperation.cos(alpha)
alpha = alpha - (original / prime)
if itr >= 1:
calculated_decimal_places += 3 * (2**(itr - 1))
if calculated_decimal_places > precision:
break
return alpha
def test_pi(self):
"""
Test case for testing pi method
:return:nothing
"""
self.assertEqual(3.141592653589793, MathOperation.pi())