mindspore.Tensor.log

Tensor.log() → Tensor

Returns the natural logarithm of a tensor element-wise.

\[y_i = \log_e(self_i)\]

Warning

If the input value of operator Log is within the range (0, 0.01] or [0.95, 1.05], the output accuracy may be affacted.

Note

The value of self must be greater than 0.

Returns

Tensor, has the same shape as the self.

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.log()
>>> print(output)
[0.        0.6931472 1.3862944]