mindspore.ops.bessel_i1e
- mindspore.ops.bessel_i1e(x)[source]
Computes exponential scaled modified Bessel function of the first kind, order 1 element-wise.
The formula is defined as:
\[\begin{split}\begin{array}{ll} \\ \text I_{1}e(x)=e^{(-|x|)} * I_{1}(x)=e^{(-|x|)} * \sum_{m=0}^ {\infty} \frac{x^{2m+1}}{2^{2m+1} m ! (m+1) !} \end{array}\end{split}\]where \(I_{1}\) is modified 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:
Ascend
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_i1e(x) >>> print(output) [-0.20791042 -0.15642083 0.15642083 0.20791042]