# tf.math.atan

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| [![](https://www.tensorflow.org/images/tf_logo_32px.png) TensorFlow 1 version](https://www.tensorflow.org/versions/r1.15/api_docs/python/tf/math/atan) |

Computes the trignometric inverse tangent of x element-wise.

#### View aliases


**Main aliases**

[`tf.atan`](https://www.tensorflow.org/api_docs/python/tf/math/atan)
**Compat aliases for migration**

See
[Migration guide](https://www.tensorflow.org/guide/migrate) for
more details.

[`tf.compat.v1.atan`](https://www.tensorflow.org/api_docs/python/tf/math/atan), [`tf.compat.v1.math.atan`](https://www.tensorflow.org/api_docs/python/tf/math/atan)

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

The [`tf.math.atan`](https://www.tensorflow.org/versions/r2.0/api_docs/python/tf/math/atan) operation returns the inverse of [`tf.math.tan`](https://www.tensorflow.org/versions/r2.0/api_docs/python/tf/math/tan), such that
if `y = tf.math.tan(x)` then, `x = tf.math.atan(y)`.

> [!NOTE]
> **Note:** The output of [`tf.math.atan`](https://www.tensorflow.org/versions/r2.0/api_docs/python/tf/math/atan) will lie within the invertible range of tan, i.e (-pi/2, pi/2).

#### For example:

    # Note: [1.047, 0.785] ~= [(pi/3), (pi/4)]
    x = tf.constant([1.047, 0.785])
    y = tf.math.tan(x) # [1.731261, 0.99920404]

    tf.math.atan(y) # [1.047, 0.785] = x

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| ## Args ||
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| `x` | A `Tensor`. Must be one of the following types: `bfloat16`, `half`, `float32`, `float64`, `int32`, `int64`, `complex64`, `complex128`. |
| `name` | A name for the operation (optional). |

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| ## Returns ||
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| A `Tensor`. Has the same type as `x`. ||

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