dpnp.rsqrt

dpnp.rsqrt(x, /, out=None, *, order='K', where=True, dtype=None, subok=True, **kwargs)[source]

Computes the reciprocal square-root for each element x_i for input array x.

Parameters:

x ({dpnp.ndarray, usm_ndarray}) – Input array, must have a real-valued data type.
out (({None, dpnp.ndarray, usm_ndarray}, optional):) – Output array to populate. Array must have the correct shape and the expected data type.
order ({"C", "F", "A", "K"}, optional) – Memory layout of the newly output array, if parameter out is None. Default: “K”.

Returns:

out – The reciprocal square-root, element-wise.

Return type:

dpnp.ndarray

Limitations

Parameters where, dtype and subok are supported with their default values. Keyword argument kwargs is currently unsupported. Otherwise the function will be executed sequentially on CPU.

See also

dpnp.sqrt: Return the positive square-root of an array, element-wise.
dpnp.reciprocal: Return the reciprocal of an array, element-wise.

Examples

>>> import dpnp as np
>>> x = np.array([1, 8, 27])
>>> np.rsqrt(x)
array([1.        , 0.35355338, 0.19245009])