Returns a new tensor with the natural logarithm of the elements of input
.
y i = log e ( x i ) y_{i} = \log_{e} (x_{i}) yi=loge(xi)
input (Tensor) – the input tensor.
out (Tensor, optional) – the output tensor.
Example:
>>> a = torch.rand(5) * 5 >>> a tensor([4.7767, 4.3234, 1.2156, 0.2411, 4.5739]) >>> torch.log(a) tensor([ 1.5637, 1.4640, 0.1952, -1.4226, 1.5204])
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