
{{alias}}( x )
    Computes the inverse (arc) secant of a number.

    If `x > -1` and `x < 1`, the function returns `NaN`.

    Parameters
    ----------
    x: number
        Input value.

    Returns
    -------
    y: number
        Inverse (arc) secant.

    Examples
    --------
    > var y = {{alias}}( 1.0 )
    0.0
    > y = {{alias}}( 2.0 )
    ~1.0472
    > y = {{alias}}( NaN )
    NaN

    See Also
    --------

