Python (the "/" operator) and NumPy's "np.true_divide".
    * ""trunc"" - rounds the results of the division towards zero.
      Equivalent to C-style integer division.

    * ""floor"" - rounds the results of the division down.
      Equivalent to floor division in Python (the "//" operator)
      and NumPy's "np.floor_divide".

  * **out** (*Tensor**, **optional*) -- the output tensor.

Examples:
  >>> x = torch.tensor([ 0.3810,  1.2774, -0.2972, -0.3719,  0.4637])
  >>> torch.div(x, 0.5)
  tensor([ 0.7620,  2.5548, -0.5944, -0.7438,  0.9274])

  >>> a = torch.tensor([[-0.3711, -1.9353, -0.4605, -0.2917],
  ...                   [ 0.1815, -1.0111,  0.9805, -1.5923],
  ...                   [ 0.1062,  1.4581,  0.7759, -1.2344],
  ...                   [-0.1830, -0.0313,  1.1908, -1.4757]])
  >>> b = torch.tensor([ 0.8032,  0.2930, -0.8113, -0.2308])
  >>> torch.div(a, b)
  tensor([[-0.4620, -6.6051,  0.5676,  1.2639],
