Tim Olson <tim at io.com> wrote:
> On Tuesday, September 9, 2003, at 04:03 AM, ducasse wrote:
> 
> > 	col := {337 at 314 .  327 at 274 . 320 at 237}.
> > 	(2 * 400 at 0) - col
> > 	-> this fails :(

Well, how about:
	| col |
	col := {337 at 314 .  327 at 274 . 320 at 237}.
	col * (-1 at 1) + (2*400 at 0).

=> #(463 at 314 473 at 274 480 at 237)

Still perhaps not very clean nor better than Tim's code, not sure what
you really want.

regard, Göran