def Laliberte_water_density(T):
    """
    Return the density of water using the form proposed by [1]_.
    No parameters are needed, just a temperature.

    .. math::
        \\rho_w = \\frac{\\left\\{\\left([(-2.8054253\\times 10^{-10}\\cdot t +
        1.0556302\\times 10^{-7})t - 4.6170461\\times 10^{-5}]t
        -0.0079870401\\right)t + 16.945176   \\right\\}t + 999.83952}
        {1 + 0.01687985\\cdot t}

    Parameters
    ----------
    T : float
        Temperature of fluid [K]

    Returns
    -------
    rho_w : float
        Water density, [kg/m^3]

    Notes
    -----
    Original source not cited
    No temperature range is used.

    Examples
    --------
    >>> Laliberte_density_w(298.15)
    997.0448954179155
    >>> Laliberte_density_w(273.15 + 50)
    988.0362916114763

    """
    t = T - 273.15
    rho_w = (((((-2.8054253e-10 * t + 1.0556302e-07) * t - 4.6170461e-05) *
        t - 0.0079870401) * t + 16.945176) * t + 999.83952) / (1 + 
        0.01687985 * t)
    return rho_w
