mindspore.numpy.identity

mindspore.numpy.identity(n, dtype=mstype.float32)[源代码]

Returns the identity tensor.

参数

  • n (int) – Number of rows and columns in the output, must be larger than 0.

  • dtype (Union[mindspore.dtype, str], optional) – Designated tensor dtype, default is mstype.float32.

返回

A tensor of shape (n, n), where all elements are equal to zero, except for the diagonal, whose values are equal to one.

Supported Platforms:

Ascend GPU CPU

异常

TypeError – If input arguments have types not specified above.

样例

>>> import mindspore.numpy as np
>>> print(np.identity(2))
[[1. 0.]
[0. 1.]]