Function pinv

numpy/array_api/linalg.py:247–262

Array API compatible wrapper for :py:func:`np.linalg.pinv `. See its docstring for more information.

(x: Array, /, *, rtol: Optional[Union[float, Array]] = None)

# Note: the keyword argument name rtol is different from np.linalg.pinv
def pinv(x: Array, /, *, rtol: Optional[Union[float, Array]] = None) -> Array:
    """
    Array API compatible wrapper for :py:func:`np.linalg.pinv <numpy.linalg.pinv>`.

    See its docstring for more information.
    """
    # Note: the restriction to floating-point dtypes only is different from
    # np.linalg.pinv.
    if x.dtype not in _floating_dtypes:
        raise TypeError('Only floating-point dtypes are allowed in pinv')

    # Note: this is different from np.linalg.pinv, which does not multiply the
    # default tolerance by max(M, N).
    if rtol is None:
        rtol = max(x.shape[-2:]) * np.finfo(x.dtype).eps
    return Array._new(np.linalg.pinv(x._array, rcond=rtol))

def qr(x: Array, /, *, mode: Literal['reduced', 'complete'] = 'reduced') -> QRResult:
    """