def testScaledHTanSigmoidDerivative(self):
sigmoid = HyperbolicTangentActivationFunction(1.7159, .666666)
output = sigmoid.derivative(np.matrix([-1.715899, 0, 1.715899]))
self.assertAlmostEqual(output[0,0], 0, places=4)
self.assertAlmostEqual(output[0,1], 1.1439, places=4)
self.assertAlmostEqual(output[0,2], 0, places=4)
