def doMath(op, op1, op2):
if op == "*":
return Mathlibrary.mul(op1, op2)
elif op == "/":
return Mathlibrary.div(op1, op2)
elif op == "+":
return Mathlibrary.add(op1, op2)
elif op == "√":
return Mathlibrary.root(op2, op1)
elif op == "^":
return Mathlibrary.pow(op1, op2)
else:
return Mathlibrary.sub(op1, op2)
inputNumbers = inputNumbers.replace('\n', ' ')
#Count the numbers
for x in inputNumbers.split():
N += 1
#Profiling on one single string
if oneString:
subSum = createSubSum(inputNumbers)
nextSum = createSum(inputNumbers)
evalString = "2 √ ( ( 1 / ( {} - 1 ) ) * ( {} - {} ) )".format(
N, nextSum, subSum)
with PyCallGraph(output=GraphvizOutput()):
print(resolve(evalString))
#Profiling using side calculations
else:
firstSum = 0
secondSum = 0
with PyCallGraph(output=GraphvizOutput()):
#Calculate SUM of numbers and SUM of numbers^2
for x in inputNumbers.split():
firstSum = Mathlibrary.add(firstSum, float(x)) #sum of Xi
secondSum = Mathlibrary.add(secondSum,
Mathlibrary.pow(float(x), 2))
#N*(x')^2
firstSum = Mathlibrary.pow(Mathlibrary.div(firstSum, N), 2)
firstSum = Mathlibrary.mul(firstSum, N)
finalSum = Mathlibrary.sub(secondSum, firstSum)
#final formula
print(resolve("2 √ ( 1 / ( {} - 1 ) * {} )".format(N, finalSum)))
class MathLibraryTestAdd(unittest.TestCase):
def setUp(self):
self.mathlib = Mathlibrary()
def testAddPositive(self):
self.assertEqual(self.mathlib.add(0, 0), 0)
self.assertEqual(self.mathlib.add(42, 37), 79)
self.assertEqual(self.mathlib.add(234, 743), 977)
self.assertEqual(self.mathlib.add(10000, 233891), 243891)
def testAddNegative(self):
self.assertEqual(self.mathlib.add(-14, -48), -62)
self.assertEqual(self.mathlib.add(-34, 56), 22)
self.assertEqual(self.mathlib.add(-2938, -230), -3168)
self.assertEqual(self.mathlib.add(-83924, 21481), -62443)
self.assertEqual(self.mathlib.add(1237471, -42194914284), -42193676813)
def testAddPositiveFloat(self):
self.assertAlmostEqual(self.mathlib.add(12.284523, 5.21421), 17.498733)
self.assertAlmostEqual(self.mathlib.add(0.124894, 0.111111111), 0.23600511)
self.assertAlmostEqual(self.mathlib.add(2389.4829, 40124.840179), 42514.323079)
self.assertAlmostEqual(self.mathlib.add(99.9999999, 99.0001), 199.0000999)
self.assertNotAlmostEqual(self.mathlib.add(0.0000000001, 0.0000001), 0.0000002)
def testAddNegativeFloat(self):
self.assertAlmostEqual(self.mathlib.add(-12.284523, -5.21421), -17.498733)
self.assertAlmostEqual(self.mathlib.add(-0.124894, -0.111111111), -0.23600511)
self.assertAlmostEqual(self.mathlib.add(-2389.4829, -40124.840179), -42514.323079)
self.assertAlmostEqual(self.mathlib.add(-99.9999999, -99.0001), -199.0000999)
self.assertNotAlmostEqual(self.mathlib.add(-0.0000000001, -0.0000001), -0.0000002)
self.assertAlmostEqual(self.mathlib.add(0.9999998, -0.9999999), -0.0000001)