sign

rbc.stdlib.elementwise_functions.sign(x)

Returns an indication of the sign of a number for each element x_i of the input array x.

Examples

>>> from rbc.stdlib import array_api
>>> @heavydb('double[](double[])')
... def array_api_sign(x):
...     return array_api.sign(x)
>>> array_api_sign([-5., 4.5]).execute()
array([-1.,  1.], dtype=float32)

Array-API ‘sign’ doc