It should be 2&x: I asked the same questions sometime ago, you could search the archive for "rational number" for more discussions.
--
regards,
====================================================
GPG key 1024D/4434BAB3 2008-08-24
gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3
唐詩302 李商隱 瑤池
瑤池阿母綺窗開 黃竹歌聲動地哀 八駿日行三萬里 穆王何事不重來
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
