bob therriault wrote:  
> I have a few questions about the covering the numbers. Does it make
> a difference to you which argument is placed on top when the scalar
> arguments are superimposed?

Well, when I was first starting to learn J here, I was under the 
impression from various posts on the Programming Forum that "y" (the 
right argument) was USUALLY (not always!) the main data that was 
operated upon (or controlled) by "x" (the left argument).  (I may be 
all wet with this understanding, but I interpreted that to be what the 
experts and gurus here indicated--and that's what I shared with others 
as I tried to proselytize J before I retired from librarianship.)

So, *if* one set of data should remain stationary while the other 
moves, it makes sense to me that the righthand data should remain 
stationary and that the lefthand data should move (or go on top of the 
righthand data).  This would be especially useful, I think, with 
primitives like # (copy), using a boolean left argument and a literal 
(or numeric) right argument.

> I am also considering dissolving in the result as the numbers collide
> (with a glow to indicate the operation). 
 
That's essentially what I've been thinking of suggesting (you beat me 
to it!) and seems very effective to me as a former teacher and somewhat 
J newbie!

Harvey

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