
{{alias}}( x )
    Computes the arccosine (in degrees) of a double-precision floating-point 
    number.

    If `|x| > 1`, the function returns `NaN`.

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

    Returns
    -------
    y: number
        Arccosine (in degrees).

    Examples
    --------
    > var y = {{alias}}( 0.0 )
    90.0
    > y = {{alias}}( {{alias:@stdlib/constants/float64/pi}}/6.0 )
    ~58.43
    > y = {{alias}}( NaN )
    NaN

    See Also
    --------

