Document feedback

Question document fragment

When a question document fragment contains a formula, it is displayed as a space.

Submission type
issue

It's a little complicated...

I'd like to ask someone.

Please select the submission type

Problem type
Specifications and Common Mistakes

- Specifications and Common Mistakes:

- Misspellings or punctuation mistakes,incorrect formulas, abnormal display.

- Incorrect links, empty cells, or wrong formats.

- Chinese characters in English context.

- Minor inconsistencies between the UI and descriptions.

- Low writing fluency that does not affect understanding.

- Incorrect version numbers, including software package names and version numbers on the UI.

Usability

- Usability:

- Incorrect or missing key steps.

- Missing main function descriptions, keyword explanation, necessary prerequisites, or precautions.

- Ambiguous descriptions, unclear reference, or contradictory context.

- Unclear logic, such as missing classifications, items, and steps.

Correctness

- Correctness:

- Technical principles, function descriptions, supported platforms, parameter types, or exceptions inconsistent with that of software implementation.

- Incorrect schematic or architecture diagrams.

- Incorrect commands or command parameters.

- Incorrect code.

- Commands inconsistent with the functions.

- Wrong screenshots.

- Sample code running error, or running results inconsistent with the expectation.

Risk Warnings

- Risk Warnings:

- Lack of risk warnings for operations that may damage the system or important data.

Content Compliance

- Content Compliance:

- Contents that may violate applicable laws and regulations or geo-cultural context-sensitive words and expressions.

- Copyright infringement.

Problem description

Agree to Privacy Statement

mindspore.ops.ldexp

mindspore.ops.ldexp(x, other)[source]

Multiplies input by 2other .

outi=xi(2iother)

Note

Typically this function can create floating point numbers by multiplying mantissas in input with powers of intger 2 from the exponents in other.

Parameters
  • x (Tensor) – The input tensor.

  • other (Tensor) – A tensor of exponents, typically integers.

Returns

Tensor, the output tensor.

Raises
  • TypeError – If x is not a Tensor.

  • TypeError – If other is not a Tensor.

  • ValueError – If the size of tensor x and other are different at non-singleton dimension, and not equal to 1.

Supported Platforms:

Ascend GPU CPU

Examples

>>> import mindspore
>>> import numpy as np
>>> from mindspore import Tensor
>>> from mindspore import ops
>>> x = Tensor(np.array([1.]), mindspore.float32)
>>> other = Tensor(np.array([1, 2, 3, 4]), mindspore.int32)
>>> out = ops.ldexp(x, other)
>>> print(out)
[ 2.  4.  8. 16.]