{{alias}}( a, b )
    Computes the greatest common divisor (gcd).

    If both `a` and `b` are `0`, the function returns `0`.

    Both `a` and `b` must have integer values; otherwise, the function returns
    `NaN`.

    Parameters
    ----------
    a: integer
        First integer.

    b: integer
        Second integer.

    Returns
    -------
    out: integer
        Greatest common divisor.

    Examples
    --------
    > var v = {{alias}}( 48, 18 )
    6

    See Also
    --------