torch.acos# torch.acos(input: Tensor, *, out: Optional[Tensor]) → Tensor# Computes the inverse cosine of each element in input. outi=cos−1(inputi)\text{out}_{i} = \cos^{-1}(\text{input}_{i}) outi=cos−1(inputi) 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])