Bill, Rob, and Roger, thanks very much. I guess I went off the deep end, and enjoyed the swim, as usual.
The GCD trick is very cool. I now notice that the Dictionary page has "Num/Denom" for the dyadic form, but the Vocabulary table has only the monadic name, "Extended Precision". ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
