Speaking of efficiency in http://www.jsoftware.com/jwiki/Essays/Text_Formatting the key is Interval Index, which is not mentioned except in formula. Given its novelty, it may be easily overlooked.
It might be good also besides spelling it out to provide a link to Dictionary inline and/or in See Also. It not easy to get there from the Wiki page. --- Roger Hui <[EMAIL PROTECTED]> wrote: > The ^: dictionary page contains two examples (examples 5 and 6) > of computing the transitive closure efficiently. > > http://www.jsoftware.com/help/dictionary/d202n.htm > > > > ----- Original Message ----- > From: Roger Hui <[EMAIL PROTECTED]> > Date: Wednesday, April 2, 2008 7:53 > Subject: Re: [Jgeneral] Transitive Closure and Line Wrap > To: General forum <[email protected]> > > > An explanation of closure usually begins with a description of > > graphs and then proceeds to closure. From the J dictionary: > > > > http://www.jsoftware.com/help/dictionary/samp20.htm > > (Directed Graphs) > > http://www.jsoftware.com/help/dictionary/samp21.htm (Closure) > > > > One particular kind of graph provides a telling example: > > the relation ship is "children of". The transitive closure > > of this graph is "descendant of". "Transitive" means > > if a R b and b R c, then a R c . > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ____________________________________________________________________________________ You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost. http://tc.deals.yahoo.com/tc/blockbuster/text5.com ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
