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Fonction cbrt - module numpy

Signature de la fonction cbrt

Description

cbrt.__doc__

cbrt(x, /, out=None, *, where=True, casting='same_kind', order='K', dtype=None, subok=True[, signature, extobj])

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

.. versionadded:: 1.10.0

Parameters
----------
x : array_like
    The values whose cube-roots are required.
out : ndarray, None, or tuple of ndarray and None, 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.
where : array_like, optional
    This condition is broadcast over the input. At locations where the
    condition is True, the `out` array will be set to the ufunc result.
    Elsewhere, the `out` array will retain its original value.
    Note that if an uninitialized `out` array is created via the default
    ``out=None``, locations within it where the condition is False will
    remain uninitialized.
**kwargs
    For other keyword-only arguments, see the
    :ref:`ufunc docs <ufuncs.kwargs>`.

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.])