mindspore.ops.bessel_i1
- mindspore.ops.bessel_i1(x)[source]
Computes modified Bessel function of the first kind, order 1 element-wise.
\[\begin{split}\begin{array}{ll} \\ I_{1}(x)=\mathrm{i}^{-1} J_{1}(\mathrm{i} x)=\sum_{m=0}^ {\infty} \frac{x^{2m+1}}{2^{2m+1} m ! (m+1) !} \end{array}\end{split}\]where \(J_{1}\) is Bessel function of the first kind, order 1.
- Parameters
x (Tensor) – The input tensor. The data type must be float16, float32 or float64.
- Returns
Tensor, has the same shape and dtype as the x.
- Raises
- Supported Platforms:
GPU
CPU
Examples
>>> import mindspore >>> import numpy as np >>> from mindspore import Tensor, ops >>> x = Tensor(np.array([-1, -0.5, 0.5, 1]), mindspore.float32) >>> output = ops.bessel_i1(x) >>> print(output) [-0.5651591 -0.25789431 0.25789431 0.5651591]