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Python | tensorflow.math.bessel_i0() method
• Last Updated : 04 Jun, 2020

TensorFlow is open-source python library designed by Google to develop Machine Learning models  and deep learning  neural networks.

bessel_io() is method in TensorFlow math module. This method is used to calculate element wise Bessel i0 of a tensor.

```Syntax:
tensorflow.math.bessel_i0(
input, name
)

Argument:
1. input: It's a tensor or SparseTensor for which element wise Bessel iO
need to be calculated. Allowed dtypes are half, float32, float64.
2. name: It is an optional argument that defines the name for the operation.

Return:
A Tensor if Tensor is given as input otherwise SparseTensor having the same dtype as input.
```

Example 1:

## Python3

 `# importing the library``import` `tensorflow as tf`` ` `# initializing constant tensor ``a ``=` `tf.constant([``-``1.5``, ``3` `], dtype``=``tf.float64)`` ` `# calculating bessel io``b ``=` `tf.math.bessel_i0(a)`` ` `# printing the input``print``(``'Input: '``,a)`` ` `# printing the output``print``(``'Output: '``,b)`

Output:

```Input:  tf.Tensor([-1.5  3. ], shape=(2,), dtype=float64)
Output:  tf.Tensor([1.64672319 4.88079259], shape=(2,), dtype=float64)
```

Example 2:

This example uses tensor with dtype int32 that will raise an error . Only tensor with dtype half, float32, float64 are allowed.

## Python3

 `# importing the library``import` `tensorflow as tf`` ` `# initializing constant tensor with dtype int32``a ``=` `tf.constant([``1` `, ``3` `], dtype``=``tf.int32)`` ` `# printing the input``print``(``'Input: '``,a)`` ` `# calculating bessel io``b ``=` `tf.math.bessel_i0(a)`

Output:

```Input:  tf.Tensor([1 3], shape=(2,), dtype=int32)

NotFoundError                             Traceback (most recent call last)

<ipython-input-43-4c70ca866e4c> in <module>()
----> 1 b = tf.math.bessel_i0(a)
```

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