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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)