def calculate_length2(self, radius):
"""
function to calculate Length of overlapping circle without using library
:param radius: value of radius in float
:return:
"""
alpha = Alpha()
mymath = MyMath()
lengthofline = 2 * radius * (
1 - mymath.cosine(alpha.valueofalpha() / 2, 5))
return lengthofline
class Alpha:
"""
Class containing method to calculate the value of alpha used in the program without using any libraries
"""
mymath = MyMath()
def valueofalpha(self):
"""
function to calculate value of alpha using bisection method
:return: float value of alpha
"""
lower = 0
upper = self.mymath.valueofpi()
for i in range(10):
mid = (lower + upper) / 2
valueoffnatlower = self.fn(lower)
valueoffnatmid = self.fn(mid)
if valueoffnatlower * valueoffnatmid < 0:
upper = mid
else:
lower = mid
return (lower + upper) / 2
def fn(self, x):
value = x - self.mymath.sine(x, 5) - (self.mymath.valueofpi() / 2
) # expression
return value
def calcStdDeviation(self):
# determine the polarity std deviation of the users
userPolarityList = []
userSubjectivityList = []
for i in range(0, len(self.userList)):
userPolarityList += [self.userList[i].avgPolarity + 5.0]
userSubjectivityList += [self.userList[i].avgSubjectivity + 5.0]
# Send data off to be computed and set std
self.stdPolarity = MyMath.stdDeviationWithAvg(userPolarityList,
self.avgPolarity + 5.0)
self.stdSubjectivity = MyMath.stdDeviationWithAvg(
userSubjectivityList, self.avgSubjectivity + 5.0)
class TestMyMath(unittest.TestCase):
"""
class to test various function in MyMath class
"""
mymath = MyMath()
def test_sine(self):
"""
to test the value of sin
:return: ok if test passes
"""
self.assertEqual(MyMath.sine(self.mymath, 3, 5), 0.14112)
def test_cosine(self):
"""
to test value of cosine
:return: ok if test passes
"""
self.assertEqual(MyMath.cosine(self.mymath, 3, 5), -0.98999)
def test_power(self):
"""
to test value of power
:return: ok if test passes
"""
self.assertEqual(MyMath.power(self.mymath, 4, 3), 64)
def test_factorial(self):
"""
to test factorial value
:return: ok if test passes
"""
self.assertEqual(MyMath.factorial(self.mymath, 6), 720)
def test_valueofpi(self):
"""
to test value of pi
:return: ok if test passes
"""
self.assertEqual(MyMath.valueofpi(self.mymath), 3.1415826535897198)
def test_valueofpi(self):
"""
to test value of pi
:return: ok if test passes
"""
self.assertEqual(MyMath.valueofpi(self.mymath), 3.1415826535897198)
def test_factorial(self):
"""
to test factorial value
:return: ok if test passes
"""
self.assertEqual(MyMath.factorial(self.mymath, 6), 720)
def test_power(self):
"""
to test value of power
:return: ok if test passes
"""
self.assertEqual(MyMath.power(self.mymath, 4, 3), 64)
def test_cosine(self):
"""
to test value of cosine
:return: ok if test passes
"""
self.assertEqual(MyMath.cosine(self.mymath, 3, 5), -0.98999)
def test_sine(self):
"""
to test the value of sin
:return: ok if test passes
"""
self.assertEqual(MyMath.sine(self.mymath, 3, 5), 0.14112)
s1.lastName = "Stalin"
s1.id = 1234
s1.add_grade(45)
s1.add_grade(90)
s1.grade = s1.compute_grade()
print(s1)
s2 = Student()
s2.firstName = "Vladimir"
s2.lastName = "Lenin"
s2.id = 2222
s2.add_grade(90)
s2.add_grade(80)
s2.grade = s2.compute_grade()
print(s2)
g1 = GraduateStudent("Karl","Marx",666)
g1.add_grade(85)
g1.add_grade(91)
g1.grade = g1.computeGrade()
print(g1)
MyMath.pi = 3.141517 #invoking static field
mm = MyMath("XYZ")
print(mm.pi)
mm2 = MyMath("PQR")
print (mm2.showName() + " " + str(mm2.pi))
print (MyMath.computeCylinderVolume(4.5, 7.2)) #invoking static method
def test(self):
self.assertEqual(MyMath.sum(2, 3), 5)
def test(self):
self.assertEqual(MyMath.substract(5, 3), 2)