def test_multiplication_positive_whole(self):
self.assertEqual(m.multiplication(8, 5), 40, "Expected solution: 40")
self.assertEqual(m.multiplication(45468, 0), 0,
"Expected solution: 40")
self.assertEqual(m.multiplication(85456487456,
55456465456), 4739114744594761319936,
"Expected solution: 4 739 114 744 594 761 319 936")
def test_multiplication_positive_decimal(self):
self.assertAlmostEqual(m.multiplication(25.86, 75.885), 1962.3861)
self.assertAlmostEqual(m.multiplication(368752.896427, 0.5487865),
202366.6113950358355)
self.assertEqual(
m.multiplication(8547456.4787554211348, 5545656.35788561321564),
47401256365160.577082109313779873,
"Expected solution: 47 401 256 365 160.577082109313779873")
def test_multiplication_negative_decimal(self):
self.assertEqual(m.multiplication(-67.215, -97.853), 6577.189395,
"Expected solution: 6 577,189395")
self.assertEqual(m.multiplication(-81679.246795, 95546.75213489),
-7804186748.08637344017755,
"Expected solution: -7 804 186 748,08637344017755")
self.assertAlmostEqual(
m.multiplication(7.5452148784564, -2.74321548975465231),
-20.698150328108862728653091494284)
def test_multiplication_negative_whole(self):
self.assertEqual(m.multiplication(-80, -50), 4000,
"Expected solution: 4 000")
self.assertEqual(m.multiplication(-45468, 956), -43467408,
"Expected solution: -43 467 408")
self.assertEqual(
m.multiplication(875648953123,
-231268753215645), -202510241643340984115209335,
"Expected solution: -202 510 241 643 340 984 115 209 335")
def calculate_result():
global amount, sum_normal, sum_square, result
sum_normal = m.multiplication(sum_normal,
(m.division(1, amount))) # 1/N * (sum x)
result = m.multiplication(sum_normal, sum_normal) # x^2
result = m.multiplication(result, amount) # N*x^2
result = m.substraction(sum_square, result) # (sum (xi^2)) - (N*x^2)
help = m.substraction(amount, 1) # N - 1
help = m.division(1, help) # 1/(N-1)
result = m.multiplication(help,
result) # (1/(N-1)) * ((sum (xi^2)) - (N*x^2))
result = m.root(2, result)
def eq_pressed(self):
x2 = float(self.result.text())
if self.pushButton_add.isChecked():
result_label = format(m.addition(self.x1, x2), '.15g')
self.pushButton_add.setChecked(False)
elif self.pushButton_sub.isChecked():
result_label = format(m.substraction(self.x1, x2), '.15g')
self.pushButton_sub.setChecked(False)
elif self.pushButton_mul.isChecked():
result_label = format(m.multiplication(self.x1, x2), '.15g')
self.pushButton_mul.setChecked(False)
elif self.pushButton_div.isChecked():
if m.division(self.x1, x2) is None:
result_label = "Undefined"
else:
result_label = format(m.division(self.x1, x2), '.15g')
self.pushButton_div.setChecked(False)
elif self.pushButton_mod.isChecked():
if m.modulo(self.x1, x2) is None:
result_label = "Undefined"
else:
result_label = format(m.modulo(self.x1, x2), '.15g')
self.pushButton_mod.setChecked(False)
elif self.pushButton_root.isChecked():
if m.root(self.x1, x2) is None:
result_label = "Undefined"
else:
result_label = format(m.root(self.x1, x2), '.15g')
self.pushButton_root.setChecked(False)
elif self.pushButton_power.isChecked():
if m.exponencial(self.x1, x2) is None:
result_label = "Undefined"
else:
result_label = format(m.exponencial(self.x1, x2), '.15g')
self.pushButton_power.setChecked(False)
else:
result_label = self.result.text()
self.result.setText(result_label)
self.x2_type = False
def calculate_line(num):
global amount, sum_normal, sum_square
amount = m.addition(amount, 1)
sum_normal = m.addition(sum_normal, num)
sum_square = m.addition(sum_square, (m.multiplication(num, num)))
