mindspore.ops.BesselI0

class mindspore.ops.BesselI0[source]

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

The formula is defined as:

\[\begin{split}\begin{array}{ll} \\ I_{0}(x)=J_{0}(\mathrm{i} x)=\sum_{m=0}^{\infty} \frac{x^{2 m}}{2^{2 m} (m !)^{2}} \end{array}\end{split}\]

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

Warning

This is an experimental API that is subject to change or deletion.

Refer to mindspore.ops.bessel_i0() for more details.

Inputs:

x (Tensor) - The input tensor. Data type must be float16, float32 or float64.

Outputs:

Tensor, has the same shape as x.

Supported Platforms:

GPU CPU

Examples

>>> import mindspore
>>> import numpy as np
>>> from mindspore import Tensor, ops
>>> bessel_i0 = ops.BesselI0()
>>> x = Tensor(np.array([0.24, 0.83, 0.31, 0.09]), mindspore.float32)
>>> output = bessel_i0(x)
>>> print(output)
[1.0144521 1.1797839 1.0241698 1.0020262]