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 MathLibraryTestMul(unittest.TestCase):
def setUp(self):
self.mathlib = Mathlibrary()
def testMulPositive(self):
self.assertEqual(self.mathlib.mul(5, 8), 40)
self.assertEqual(self.mathlib.mul(19247, 0), 0)
self.assertEqual(self.mathlib.mul(0, 701134), 0)
self.assertEqual(self.mathlib.mul(12442, 823), 10239766)
def testMulNegative(self):
self.assertEqual(self.mathlib.mul(-5, 8), -40)
self.assertEqual(self.mathlib.mul(-5, -8), 40)
self.assertEqual(self.mathlib.mul(-9313, 7053170), -65686172210)
self.assertEqual(self.mathlib.mul(0, -701134), 0)
def testMulFloat(self):
self.assertAlmostEqual(self.mathlib.mul(1.5132, 8.85130), 13.39378716)
self.assertAlmostEqual(self.mathlib.mul(5.841021, 0.843103), 4.9245823281)
self.assertAlmostEqual(self.mathlib.mul(-34.4104921, 913.83191), -31445.405719782911)
self.assertAlmostEqual(self.mathlib.mul(-794.7415124, -0.05923), 47.072539779452)