Tanh — PyTorch 2.7 documentation (original) (raw)
class torch.nn.Tanh(*args, **kwargs)[source][source]¶
Applies the Hyperbolic Tangent (Tanh) function element-wise.
Tanh is defined as:
Tanh(x)=tanh(x)=exp(x)−exp(−x)exp(x)+exp(−x)\text{Tanh}(x) = \tanh(x) = \frac{\exp(x) - \exp(-x)} {\exp(x) + \exp(-x)}
Shape:
- Input: (∗)(*), where ∗* means any number of dimensions.
- Output: (∗)(*), same shape as the input.
Examples:
m = nn.Tanh() input = torch.randn(2) output = m(input)
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