What would be "good form" for the sig for production code?

On Sun, 5 Dec 2004 08:55:32 +0900, Giovanni Intini <intinig / gmail.com> wrote:
> >      32.times{|y|print" "*(31-y),(0..y).map{|x|~y&x>0?" .":" A"},$/}
> 
> This really is wonderful, but the most wonderful thing its that I
> cannot understand it intuitively :(
> 
>