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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, float) – Radial distance. Tensor of any dimension, with dtype required to be float32.

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

Returns

Tensor, with the same shape as abs and the dtype is complex64.

Raises

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

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

• 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:

Ascend GPU CPU

Examples

>>> import mindspore
>>> import numpy as np
>>> from mindspore import Tensor, ops
>>> abs = Tensor(np.array([1, 2]), mindspore.float32)
>>> angle = Tensor(np.array([np.pi / 2, 5 * np.pi / 4]), mindspore.float32)
>>> output = ops.polar(abs, angle)
>>> print(output)
[ -4.3711388e-08+1.j         -1.4142137e+00-1.4142134j]