Python Variable.tanh Exemples

Exemple #1

 def test_tanh(self):
     a = Variable(1.5)
     c = a.tanh()
     c.backward()
     self.assertAlmostEqual(a.d.value, 1 - tanh(1.5)**2)

Exemple #2

 def test_tanh(self):
     a = Variable(1.5)
     c = a.tanh()
     self.assertAlmostEqual(c.value, tanh(1.5))

Exemple #3

 def test_tanh2(self):
     a = Variable(0)
     c = a.tanh()
     self.assertAlmostEqual(c.value, 0.0)

Exemple #4

 def test_tanh2(self):
     a = Variable(0)
     c = a.tanh()
     c.backward()
     self.assertAlmostEqual(a.d.value, 1.0)