```
.. note::

    Points (1) and (2) are not yet applied by default. Beginning with
    Numpy 1.8.0, they are applied consistently only if the environment
    variable ``NPY_RELAXED_STRIDES_CHECKING=1`` was defined when NumPy
    was built. Eventually this will become the default.

    You can check whether this option was enabled when your NumPy was
    built by looking at the value of ``np.ones((10,1),
    order='C').flags.f_contiguous``. If this is ``True``, then your
    NumPy has relaxed strides checking enabled.
```