Bob, The link below may be helpful. http://www.jsoftware.com/jwiki/EditingGuidelines/Embedding
The first example is not appealing to me because it is more about addition for elementary school than for J users, imo. Instead, I would suggest adding a scalar and a vector and the reverse. The graphics are nice and clear and your animation will be informative. Thanks, -- (B=) ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
