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.

Please select the type of question

Problem description

Describe the bug so that we can quickly locate the problem.

Submit

Document feedback

mindspore.ops.polar

mindspore.ops.polar(abs, angle)

Converts polar coordinates to Cartesian coordinates.

Returns a complex tensor, its elements are Cartesian coordinates constructed with the polar coordinates which is specified by radial distance abs and polar angle angle.

$$y_i=ab{s}_i\ast \cos (angl{e}_i)+ab{s}_i\ast \sin (angl{e}_i)\ast j$$

Parameters

• abs (Tensor) – Radial distance. The shape of tensor is $(N,\ast )$ where $N$ means the batchsize of the input tensor, $\ast$ means, any number of additional dimensions. Must be one of the following types: float32, float64.

• angle (Tensor) – Polar angle. It has the same shape and dtype as abs.

Returns

Tensor, has the same shape as abs.

• If the inputs are float32, data type must be complex64.

• If the inputs are float64, data type must be complex128.

Raises

• TypeError – If neither abs nor angle is a Tensor.

• TypeError – If the dtype of input is not one of: float32, float64.

• TypeError – If the dtypes of abs and angle are not the same.

• ValueError – If abs’s shape is not the same as angle.

Supported Platforms:

GPU CPU

Examples

>>> import mindspore
>>> import numpy as np
>>> from mindspore import Tensor, ops
>>> abs = Tensor(np.array([1, 2]), mindspore.float64)
>>> angle = Tensor(np.array([np.pi / 2, 5 * np.pi / 4]), mindspore.float64)
>>> output = ops.polar(abs, angle)
>>> print(output)
[ 6.12323400e-17+1.j         -1.41421356e+00-1.41421356j]