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