I would be tempted to forego grammar and show some linear algebra in J. Maybe use the example Mr. Rich offered a while ago for finding if a line segment intersects a ball: C (R >: +/&.:*:)@:([- ]* 0>.1<.%.)&(-&S) E with center C, radius R, and endpoints E and S. Trains and &. are a must, and are covered in this example. In fact, a solid five minutes would just be to get this expression across.
Marshall -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Roger Hui Sent: Tuesday, November 16, 2010 6:58 PM To: Programming forum Subject: Re: [Jprogramming] Presenting J at the "Language Slapdown" this week If I only have 5 minutes then I would try to get across the following points: - Verbs apply to nouns to produce nouns. - "Everything" is a noun. - Adverbs apply to verbs to produce verbs. The examples would be tailored to the audience. e.g. In NYC I would have a VWAP example. ----- Original Message ----- From: Devon McCormick <[email protected]> Date: Tuesday, November 16, 2010 15:01 Subject: Re: [Jprogramming] Presenting J at the "Language Slapdown" this week To: Programming forum <[email protected]> > This just in (from the organizer of the Slapdown): > > > I have received a large number of cancellations from > presenters in the > last five days. So, instead of 16 languages we are down to 7. > > This small number defeats the purpose of the event, so I am > going to > cancel it. > > Nurts! > > Thanks to all who offered suggestions. It's not a total waste as I > now have a 5-minute J intro at the ready. > > For those of you with ideas on how to go about this, it might be > worthwhileto put together your own 5-minute intro. I'd like to see > how others approach this. Especially interesting would be some "live" > demos: I had > planned to assemble a lab to do this before I realized that the > presentations were supposed to be canned. > > I'm sure Raul (see below) is correct about my attempt as I did skim > through the pages with the graphs in my rehearsals in order to keep > within the time limit. However, part of my strategy was to give > people something interesting to look back to as this presentation > would have been availableon-line. > > On Tue, Nov 16, 2010 at 2:04 PM, Raul Miller <[email protected]> > wrote: > > > You will probably see this too late. > > > > In my opinion, you are still trying to present too much for five > > minutes. Those pages are very busy, and I think they present too > > much for a five minute presentation. > > ... ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
