[Jprogramming] Noob question

[ethiejiesa via Programming]

"John Dell'Aquila" <dellaq at ml1.net> wrote:
> Hi all,
> 
> I just discovered J a few months ago and have decided to take it up seriously. I wish I'd found it 20 years ago. You folks keep a seriously low profile on the internet :-)

Welcome John! The low profile here is definitely counterbalanced by the density
of quality in the forums :)

> Can someone explain what I'm missing here?

Good question. This is a checkpoint we all seem to encounter when first coming
to array languages.

Let me play Socrates here and ask you a question in return, what is the
difference between (1) and (1$1)?