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Python – tensorflow.math.bessel_i1() function
• 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_i1() is function present in tensorflow math module. This function is used to find element wise first order modified Bessel function.

Syntax: tensorflow.math.bessel_i1( x, name)

Parameters:

• x: It’s a tensor and the allowed dtypes for this tensor are bfloat16, half, float32, float64.
• name: It’s is an optional argument which is used to give operation name.

Returns: It returns a tensor or sparse tensor depending upon x of same dtype as x.

Example 1:

## Python3

 `# importing the library ` `import` `tensorflow as tf ` ` `  `# initializing the input ` `a ``=` `tf.constant([``1``,``2``,``3``,``4``,``5``], dtype ``=` `tf.float64) ` ` `  `# printing the input  ` `print``(``'a: '``,a) ` ` `  `# evaluating the result ` `r ``=` `tf.math.bessel_i1(a) ` ` `  `# printing the result ` `print``(``"Result: "``,r) `

Output:

```a:  tf.Tensor([1. 2. 3. 4. 5.], shape=(5,), dtype=float64)
Result:  tf.Tensor([ 0.5651591   1.59063685  3.95337022  9.75946515 24.33564214], shape=(5,), dtype=float64)

```

Example 2: Visualization

## Python3

 `# importing the library ` `import` `tensorflow as tf ` `import` `matplotlib.pyplot as plt  ` ` `  `# initializing the input ` `a ``=` `tf.constant([``1``,``2``,``3``,``4``,``5``], dtype ``=` `tf.float64) ` ` `  `# evaluating the result ` `r ``=` `tf.math.bessel_i1(a) ` ` `  `#plotting the graph ` `plt.plot(a, r, color ``=` `'green'``, marker ``=` `"o"``)   ` `plt.title(``"tensorflow.math.bessel_i1"``)   ` `plt.xlabel(``"Input"``)   ` `plt.ylabel(``"Result"``)   ` `plt.show()  `

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