Tanh module
Applies the element-wise function:
nn_tanh()
\mbox{Tanh}(x) = \tanh(x) = \frac{\exp(x) - \exp(-x)} {\exp(x) + \exp(-x)}
Input: (N, *) where *
means, any number of additional
dimensions
Output: (N, *), same shape as the input
if (torch_is_installed()) { m <- nn_tanh() input <- torch_randn(2) output <- m(input) }
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