# tf.keras.activations.tanh

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| [![](https://www.tensorflow.org/images/GitHub-Mark-32px.png) View source on GitHub](https://github.com/keras-team/keras/tree/v2.14.0/keras/activations.py#L351-L370) |

Hyperbolic tangent activation function.

    tf.keras.activations.tanh(
        x
    )

#### Example:

    a = tf.constant([-3.0, -1.0, 0.0, 1.0, 3.0], dtype = tf.float32)
    b = tf.keras.activations.tanh(a)
    b.numpy()
    array([-0.9950547, -0.7615942,  0.,  0.7615942,  0.9950547], dtype=float32)

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| ## Args ||
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| `x` | Input tensor. |

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| ## Returns ||
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| Tensor of same shape and dtype of input `x`, with tanh activation: `tanh(x) = sinh(x)/cosh(x) = ((exp(x) - exp(-x))/(exp(x) + exp(-x)))`. ||

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