.. _cn_api_fluid_layers_tanh_shrink:

tanh_shrink
-------------------------------

.. py:function:: paddle.fluid.layers.tanh_shrink(x, name=None)

:alias_main: paddle.nn.functional.tanh_shrink
:alias: paddle.nn.functional.tanh_shrink,paddle.nn.functional.activation.tanh_shrink
:old_api: paddle.fluid.layers.tanh_shrink






tanh_shrink激活函数

.. math::
    out = x - \frac{e^{x} - e^{-x}}{e^{x} + e^{-x}}

参数:

    - **x** - TanhShrink算子的输入
    - **name** (str|None) - 该层名称（可选）。若设为None，则自动为该层命名。

返回: 张量(Tensor)

返回类型: 变量(Variable)

**代码示例**：

.. code-block:: python

    import paddle.fluid as fluid
    data = fluid.layers.data(name="input", shape=[32, 784])
    result = fluid.layers.tanh_shrink(data)









