Thanks to everyone who replied to my original post. Now for a supplementary!
Given that (for example) 10 (6 , *)/ 20 30 6 200 300 ...looks completely counter-intuitive to me, what advantage is there of using this methodology over the more obvious (to me, anyway!) 6, 10*/20 30 6 200 300 It doesn't seem to be for performance reasons... [EMAIL PROTECTED] (6, 10*/data) -: 10 (6 , *)/ data NB. ensure results are equal 1 ts '(6, 10*/data)' 0.0303572 8.38989e6 ts '10 (6 , *)/ data' 0.0331207 8.39002e6 ..but I guess there must be a cogent reason that escapes me! Richard > Date: Wed, 23 Jan 2008 07:18:06 -0800 > From: [EMAIL PROTECTED] > Subject: Re: [Jprogramming] N0 V1 V2 > To: [email protected] > > (1 2 3,*) / 7 8 9 > 1 2 3 7 14 21 504 > > (1 2 3"_,*) / 7 8 9 > 1 2 3 7 14 21 504 > > 7 (1 2 3"_ , *) (8 (1 2 3"_ , *) 9) > 1 2 3 7 14 21 504 > > > > > ----- Original Message ---- > From: Richard Donovan <[EMAIL PROTECTED]> > To: Programming forum <[email protected]> > Sent: Wednesday, January 23, 2008 9:49:40 AM > Subject: [Jprogramming] N0 V1 V2 > > > > Forum, > > I am currently investigating the new (to me!) construct N0 V1 V2, and have > studied the release notes for J601 where the implementation is explained. > > I am specifically interested in the use of this construct in the expression... > > (1 2 3,*) / 7 8 9 NB. (N0 V1 V2) / N1 where N0 is 1 2 > 3, V1 is , V2 is *, N1 is 7 8 9 > 1 2 3 7 14 21 504 > > which seems to have been calculated thus... > > 1 2 3 , (7 * 1 2 3) , (7*8*9) > > I believe the use of / (insert) causes this construct to be used in the > dyadic form. I cannot see any place the dyadic construct is explained and am > struggling to see why this is calculated like it is! > > I would be grateful for any assistance. > > Thanks, > > Richard > > _________________________________________________________________ > Free games, great prizes - get gaming at Gamesbox. > http://www.searchgamesbox.com---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm _________________________________________________________________ Get Hotmail on your mobile, text MSN to 63463! http://mobile.uk.msn.com/pc/mail.aspx---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
