ermite series of the derivative.

    See Also
    --------
    hermeint

    Notes
    -----
    In general, the result of differentiating a Hermite series does not
    resemble the same operation on a power series. Thus the result of this
    function may be "unintuitive," albeit correct; see Examples section
    below.

    Examples
    --------
    >>> from numpy.polynomial.hermite_e import hermeder
    >>> hermeder([ 1.,  1.,  1.,  1.])
    array([1.,  2.,  3.])
    >>> hermeder([-0.25,  1.,  1./2.,  1./3.,  1./4 ], m=2)
    array([1.,  2.,  3.])

    r