|---| | [ View source on GitHub](https://github.com/tensorflow/tensorflow/blob/v2.21.0/tensorflow/python/ops/math_ops.py#L5849-L5871) | Computes reciprocal of square root of x element-wise. #### View aliases **Compat aliases for migration** See [Migration guide](https://www.tensorflow.org/guide/migrate) for more details. [`tf.compat.v1.rsqrt`](https://www.tensorflow.org/api_docs/python/tf/math/rsqrt)
tf.math.rsqrt( x, name=None ) ### Used in the notebooks | Used in the tutorials | |---| | - [Neural machine translation with a Transformer and Keras](https://www.tensorflow.org/text/tutorials/transformer) | #### For example: x = tf.constant([2., 0., -2.]) tf.math.rsqrt(x)


| ## Args || |---|---| | `x` | A [`tf.Tensor`](https://www.tensorflow.org/api_docs/python/tf/Tensor). Must be one of the following types: `bfloat16`, `half`, `float32`, `float64`. | | `name` | A name for the operation (optional). |



| ## Returns || |---|---| | A [`tf.Tensor`](https://www.tensorflow.org/api_docs/python/tf/Tensor). Has the same type as `x`. ||