torch.nextafter
torch.nextafter(input, other, *, out=None) -> Tensor
Return the next floating-point value after "input" towards "other",
   elementwise.
The shapes of "input" and "other" must be broadcastable.
Parameters:
      * input (Tensor) -- the first input tensor
  * **other** (*Tensor*) -- the second input tensor

Keyword Arguments:
      out (Tensor, optional) -- the output tensor.
Example:
  >>> eps = torch.finfo(torch.float32).eps
  >>> torch.nextafter(torch.tensor([1.0, 2.0]), torch.tensor([2.0, 1.0])) == torch.tensor([eps + 1, 2 - eps])
  tensor([True, True])
