cbrt

cbrt(x, out=None, **kwargs)

Return the cube-root of an array, element-wise.

Parameters:

x : ndarray

The values whose cube-roots are required.

out : ndarray, optional

A location into which the result is stored. If provided, it must have a shape that the inputs broadcast to. If not provided or None, a freshly-allocated array is returned. A tuple (possible only as a keyword argument) must have length equal to the number of outputs.

Returns:

y : ndarray

An array of the same shape as x, containing the cube cube-root of each element in x. If out was provided, y is a reference to it. This is a scalar if x is a scalar.

Examples

>>> np.cbrt([1,8,27])
array([ 1.,  2.,  3.])