On Sat, 30 Jan 2010 00:08:00 +0100, Merciadri Luca wrote: > The problem is that I need to know where value_i is, before, and after, > the sorting. Is this homework? -- Tong (remove underscore(s) to reply) http://xpt.sourceforge.net/techdocs/ http://xpt.sourceforge.net/tools/