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torch / torch

torch.lgamma¶

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

Computes the logarithm of the gamma function on input.

\text{out}_{i} = \log \Gamma(\text{input}_{i})

Parameters

input (Tensor) – the input tensor.
out (Tensor, optional) – the output tensor.

Example:

>>> a = torch.arange(0.5, 2, 0.5)
>>> torch.lgamma(a)
tensor([ 0.5724,  0.0000, -0.1208])

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