def test_sin(self):
"""
Test case for testing sin method
:return:nothing
"""
self.assertEqual(0.8414709848078965, MathOperation.sin(1.0))
def get_length(radius):
"""
This static method calculates the length based on the value of alpha
:param radius:
:return:float length
"""
Solution.set_alpha()
return 2.0 * radius * (1.0 -
MathOperation.cos(Solution.get_alpha() / 2))
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())
def test_cos_negative_value(self):
"""
Test case for testing cos method against negative value
:return:nothing
"""
self.assertEqual(0.5403023058681398, MathOperation.cos(-1.0))
def test_cos(self):
"""
Test case for testing cos method
:return:nothing
"""
self.assertEqual(0.5403023058681398, MathOperation.cos(1.0))
def test_negative_sin(self):
"""
Test Case for testing sin method against a negative value
:return:nothing
"""
self.assertEqual(-0.8414709848078965, MathOperation.sin(-1.0))