mindspore.ops.BesselY1
- class mindspore.ops.BesselY1[source]
Computes Bessel function of the second kind, order 1 element-wise.
The formula is defined as:
\[\begin{split}\begin{array}{ll} \\ Y_{1}(x)=\lim_{n \to 1} \frac{J_{n}(x) \cos n \pi-J_{-n}(x)}{\sin n \pi} \end{array}\end{split}\]where \(J_{1}\) is Bessel function of the first kind, order 1.
Warning
This is an experimental API that is subject to change or deletion.
- Inputs:
x (Tensor) - The input tensor. Data type must be float16, float32 or float64.
- Outputs:
Tensor, has the same shape as x.
- Raises
TypeError – If x is not a Tensor of float16, float32, float64.
- Supported Platforms:
GPU
CPU
Examples
>>> import mindspore >>> import numpy as np >>> from mindspore import Tensor, ops >>> bessel_y1 = ops.BesselY1() >>> x = Tensor(np.array([0.5, 1., 2., 4.]), mindspore.float32) >>> output = bessel_y1(x) >>> print(output) [-1.47147239 -0.78121282 -0.10703243 0.39792571]