mindspore.Tensor.log1p

Tensor.log1p() → Tensor

Returns the natural logarithm of one plus the self tensor element-wise.

o u t_{i} = \log_{e} (x_{i} + 1)

Note

The input Tensor. $x$ in the above formula. The value must be greater than -1.

Returns: Tensor, has the same shape as the self.
Raises: TypeError – If self is not a Tensor.

Supported Platforms:: Ascend GPU CPU

Examples

>>> import mindspore
>>> import numpy as np
>>> from mindspore import Tensor
>>> x = Tensor(np.array([1.0, 2.0, 4.0]), mindspore.float32)
>>> output = x.log1p()
>>> print(output)
[0.6931472 1.0986123 1.609438 ]