Sam> Also, swap =: 1&A. Roger> Good one.
This comes from A. documentation :) "In particular, 1 A. b transposes the last two items of b, and _1 A. b reverses the list of items, and 3 A. b and 4 A. b rotate the last three items of b." Sam -- Samuel Tardieu -- [EMAIL PROTECTED] -- http://www.rfc1149.net/ ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
