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tf.keras.activations.tanh

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Hyperbolic Tangent (tanh) activation function.

For example:

# Constant 1-D tensor populated with value list.
a = tf.constant([-3.0,-1.0, 0.0,1.0,3.0], dtype = tf.float32)
b = tf.keras.activations.tanh(a) #[-0.9950547,-0.7615942,
0.,0.7615942,0.9950547]

Arguments: x: Input tensor.

Returns
A tensor of same shape and dtype of input x. The tanh activation: tanh(x) = sinh(x)/cosh(x) = ((exp(x) - exp(-x))/(exp(x) + exp(-x))).

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Licensed under the Creative Commons Attribution License 3.0.
Code samples licensed under the Apache 2.0 License.
https://www.tensorflow.org/versions/r1.15/api_docs/python/tf/keras/activations/tanh