When I read http://www.jsoftware.com/help/dictionary/d210.htm I see the text:
"The fit conjunction ($!.f) provides fill specified by the atom f , or
the normal fill defined under Take ({.) if f is an empty vector."
So I am not sure why this behavior would be unexpected.
--
Raul
On Mon, Apr 22, 2013 at 9:42 PM, Henry Rich <[email protected]> wrote:
> I'm not talking about
>
> 3 $ 4
> 4 4 4
>
> or even
> 3 $ i. 2 3
> 0 1 2
> 3 4 5
> 0 1 2
>
> What happens when the right argument has no atoms? Like
>
> 3 $ (0$0)
> ?
>
>
>
> 3 $ (0$0)
> |length error
>
> You can see the problem. Since all empties are considered identical, what
> value should Roger make 3 copies of?
>
> But... do you have to make the right operand non-empty, or is there a way
> to use $ with empty y?
>
>
>
> There is...
>
> 3 $!.5 (0$0)
> 5 5 5
>
> You can even keep the type of the empty:
>
> 3 $!.'' (0$0)
> 0 0 0
> 3 $!.'' (0$a:)
> ++++
> ||||
> ++++
>
> As I read the Dictionary, this behavior is unexpected - but welcome.
>
> Henry Rich
>
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