Sigmoid
class torch.nn.Sigmoid
Applies the element-wise function:
  \text{Sigmoid}(x) = \sigma(x) = \frac{1}{1 + \exp(-x)}

Shape:
      * Input: (*), where * means any number of dimensions.
  * Output: (*), same shape as the input.

[image]
Examples:
  >>> m = nn.Sigmoid()
  >>> input = torch.randn(2)
  >>> output = m(input)
