|---|
| [![](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/math_ops.py#L897-L936) |

Returns the element-wise argument of a complex (or real) tensor.

#### View aliases


**Compat aliases for migration**

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

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

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    tf.math.angle(
        input, name=None
    )

Given a tensor `input`, this operation returns a tensor of type `float` that
is the argument of each element in `input` considered as a complex number.

The elements in `input` are considered to be complex numbers of the form
\\(a + bj\\), where *a* is the real part and *b* is the imaginary part.
If `input` is real then *b* is zero by definition.

The argument returned by this function is of the form \\(atan2(b, a)\\).
If `input` is real, a tensor of all zeros is returned.

#### For example:

    input = tf.constant([-2.25 + 4.75j, 3.25 + 5.75j], dtype=tf.complex64)
    tf.math.angle(input).numpy()
    # ==> array([2.0131705, 1.056345 ], dtype=float32)

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| ## Args ||
|---|---|
| `input` | A `Tensor`. Must be one of the following types: `float`, `double`, `complex64`, `complex128`. |
| `name` | A name for the operation (optional). |

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| ## Returns ||
|---|---|
| A `Tensor` of type `float32` or `float64`. ||

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