
{{alias}}( μ, β )
    Returns the variance of a Gumbel distribution with location parameter `μ`
    and scale parameter `β`.

    If provided `NaN` as any argument, the function returns `NaN`.

    If provided `β <= 0`, the function returns `NaN`.

    Parameters
    ----------
    μ: number
        Location parameter.

    β: number
        Scale parameter.

    Returns
    -------
    out: number
        Variance.

    Examples
    --------
    > var y = {{alias}}( 0.0, 1.0 )
    ~1.645
    > y = {{alias}}( 4.0, 2.0 )
    ~6.58
    > y = {{alias}}( NaN, 1.0 )
    NaN
    > y = {{alias}}( 0.0, NaN )
    NaN
    > y = {{alias}}( 0.0, 0.0 )
    NaN

    See Also
    --------

