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torch.acos

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

Computes the inverse cosine of each element in input.

outi=cos1(inputi)\text{out}_{i} = \cos^{-1}(\text{input}_{i})
Parameters

input (Tensor) – the input tensor.

Keyword Arguments

out (Tensor, optional) – the output tensor.

Example:

>>> a = torch.randn(4)
>>> a
tensor([ 0.3348, -0.5889,  0.2005, -0.1584])
>>> torch.acos(a)
tensor([ 1.2294,  2.2004,  1.3690,  1.7298])

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