torch.tan
torch.tan(input, *, out=None) -> Tensor
Returns a new tensor with the tangent of the elements of "input".
  \text{out}_{i} = \tan(\text{input}_{i})

Parameters:
      input (Tensor) -- the input tensor.
Keyword Arguments:
      out (Tensor, optional) -- the output tensor.
Example:
  >>> a = torch.randn(4)
  >>> a
  tensor([-1.2027, -1.7687,  0.4412, -1.3856])
  >>> torch.tan(a)
  tensor([-2.5930,  4.9859,  0.4722, -5.3366])
