Since the presentation is in NYC some examples involving trading and/or finance may "connect". e.g.
+/ price * volume % +/ volume VWAP (volume weighted average price). average=: +/ % # 30 average\ close 30-day moving average of daily closes. 30 90 average\ close 30- and 90-day moving averages. range=: >./ - <./ average (price>:(>./price) - 0.1*range price)#volume The average volume of all trades within 10% of the maximum price. ----- Original Message ----- From: Devon McCormick <[email protected]> Date: Sunday, November 14, 2010 8:53 Subject: Re: [Jprogramming] Presenting J at the "Language Slapdown" this week To: Programming forum <[email protected]> > I put this into the examples: > > /:~'thoJ' > Jhot > > > On Sun, Nov 14, 2010 at 10:46 AM, Roger Hui <[email protected]> > wrote: > > Very nice. > > > > It may be worthwhile to find room for sort/grade, > > including the fact that /:~ sorts _anything_. Examples > > would include sorting numerics and sorting characters. > > (Everyone "gets" sort. Not everyone gets complex numbers.) > > > > > > > > ----- Original Message ----- > > From: Devon McCormick <[email protected]> > > Date: Saturday, November 13, 2010 22:31 > > Subject: [Jprogramming] Presenting J at the "Language > Slapdown" this week > > To: J-programming forum <[email protected]> > > > > > Hi All - > > > > > > I've put up a PDF - > > > > http://www.jsoftware.com/jwiki/DevonMcCormick/LanguageSlapdown - > > > of what I'm > > > going to present at the Language Slapdown ( > > > http://www.meetup.com/Language-Slapdown/) on Wednesday. > > > Please feel free to > > > take a look and comment. Thanks to everyone in NYCJUG who > > > gave me help with > > > this. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
