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torch.atan2

torch.atan2(input, other, *, out=None) → Tensor

Element-wise arctangent of inputi/otheri\text{input}_{i} / \text{other}_{i} with consideration of the quadrant. Returns a new tensor with the signed angles in radians between vector (otheri,inputi)(\text{other}_{i}, \text{input}_{i}) and vector (1,0)(1, 0) . (Note that otheri\text{other}_{i} , the second parameter, is the x-coordinate, while inputi\text{input}_{i} , the first parameter, is the y-coordinate.)

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:

>>> a = torch.randn(4)
>>> a
tensor([ 0.9041,  0.0196, -0.3108, -2.4423])
>>> torch.atan2(a, torch.randn(4))
tensor([ 0.9833,  0.0811, -1.9743, -1.4151])

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