mindspore/docs/api/api_python/nn/mindspore.nn.Tanh.rst

28 lines
739 B
ReStructuredText
Raw Permalink Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

mindspore.nn.Tanh
=============================
.. py:class:: mindspore.nn.Tanh
逐元素计算Tanh双曲正切值激活函数返回一个新的Tensor。
Tanh函数定义为
.. math::
tanh(x_i) = \frac{\exp(x_i) - \exp(-x_i)}{\exp(x_i) + \exp(-x_i)} = \frac{\exp(2x_i) - 1}{\exp(2x_i) + 1},
其中 :math:`x_i` 是输入Tensor的元素。
Tanh函数图
.. image:: ../images/Tanh.png
:align: center
输入:
- **x** (Tensor) - 任意维度的Tensor数据类型为float16或float32的输入。
输出:
Tensor数据类型和shape与 `x` 的相同。
异常:
- **TypeError** - `x` 的数据类型既不是float16也不是float32。