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| [![](https://www.tensorflow.org/images/GitHub-Mark-32px.png) View source on GitHub](https://github.com/tensorflow/tensorflow/blob/v2.21.0/tensorflow/python/ops/special_math_ops.py#L309-L335) |

Computes the Bessel i1 function of `x` element-wise.

#### View aliases


**Main aliases**

[`tf.math.special.bessel_i1`](https://www.tensorflow.org/api_docs/python/tf/math/bessel_i1)

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    tf.math.bessel_i1(
        x, name=None
    )

Modified Bessel function of order 1.

It is preferable to use the numerically stabler function `i1e(x)` instead.

    tf.math.special.bessel_i1([-1., -0.5, 0.5, 1.]).numpy()
    array([-0.5651591 , -0.25789431,  0.25789431,  0.5651591 ], dtype=float32)

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| ## Args ||
|---|---|
| `x` | A `Tensor` or `SparseTensor`. Must be one of the following types: `half`, `float32`, `float64`. |
| `name` | A name for the operation (optional). |

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| ## Returns ||
|---|---|
| A `Tensor` or `SparseTensor`, respectively. Has the same type as `x`. ||

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## scipy compatibility

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Equivalent to scipy.special.i1

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