mindspore.ops.BesselI0e

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class mindspore.ops.BesselI0e[source]

Computes exponential scaled modified Bessel function of the first kind, order 0 element-wise.

The formula is defined as:

\[\begin{split}\begin{array}{ll} \\ \text I_{0}e(x)=e^{(-|x|)} * I_{0}(x)=e^{(-|x|)} * \sum_{m=0}^ {\infty} \frac{x^{2 m}}{2^{2 m} (m !)^{2}} \end{array}\end{split}\]

where \(I_{0}\) is modified Bessel function of the first kind, order 0.

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.

  • TypeError – If dtype of x is not float16, float32 or float64.

Supported Platforms:

Ascend GPU CPU

Examples

>>> import mindspore
>>> import numpy as np
>>> from mindspore import Tensor, ops
>>> bessel_i0e = ops.BesselI0e()
>>> x = Tensor(np.array([0.24, 0.83, 0.31, 0.09]), mindspore.float32)
>>> output = bessel_i0e(x)
>>> print(output)
[0.7979961  0.5144438  0.75117415  0.9157829 ]