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Am 29.11.2010 08:52, schrieb steve donovan: 
On Mon, Nov 29, 2010 at 9:27 AM, Juris Kalnins <juris@mt.lv> wrote:

$ - x --> return ... - x


    

    In the line of PiL,
      Chapter 5.2  ,"...all its arguments are collected in a single
    table,
    which the function accesses as a hidden parameter
    named arg....":

    $ - x --> return ... - x

    $2 - $1 - x --> return arg[2] - arg[1] - x

    -- Frank (who finally couldn't resist)