Thanks for alerting me to that, Ric. I have not been consistent in the usage of 3 versus 13 throughout the book, let alone each chapter. The original series of papers of course were published over a span of time, during which J evolved and the author's knowledge increased, so consistency was not to be expected.
The 13-form certainly saves space and I ought to consider it wherever the result does not spill onto the next line. Blocks of code cause formatting problems and account for a good proportion of my typesetting time to get the appearance right (i.e. optimise the splitting of code across pages). I'm beginning to ask myself: do we want it perfect or do we want it by Christmas? The significance of Gene's book -- and the nature of that significance (timeless, not ephemeral), inclines me towards "perfect". But it ought to come out (eventually) when promised. What do others think? Wikians -- feel free to update the articles (see http://www.jsoftware.com/jwiki/At%20Play%20With%20J). But if you do, please poke me with the URL or PlayNNN ID so I don't miss your changes. Ian On Sat, Oct 24, 2009 at 6:27 AM, Sherlock, Ric <[email protected]> wrote: > To maintain consistency with the other verb definitions in the article, I'd > suggest using 13 : '' rather than 3 : 0 to define David's BLT > > i.e. > > BLT=: 13 : '~. bl"1 (y#y)#: i.y^y' > >> From: Ian Clark >> >> Thank you, David, for your reconstruction of verb BLT. It works fine >> and gives the expected results. I have inserted it in >> http://www.jsoftware.com/jwiki/Doc/Articles/Play171 after the first >> mention of BLT. >> >> On Wed, Oct 21, 2009 at 11:11 AM, David Mitchell wrote: >> > >> > In the keeping of brute force: >> > >> > bl =: ] i.~ [: /:~ ~. >> > >> > BLT=: 3 : 0 >> > ~. bl"1 (y#y)#: i.y^y >> > ) > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
