---Björn Helgason wrote:
> I am just wondering if the beginner understands what happened
> and what magic
> Roger performed.
>
> These kind of solutions are of course brilliant and telling
> of the power of
> J.
>
> I personally do understand it but fro the sake of the
> beginner it would be
> nice to put some comments in.

Nice work Björn.
I think you're right that adding a few comments and commentary is very helpful 
for beginners trying to come to grips with J.
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