It is not a rediscovery because it never was lost. Also, it is recorded in the release notes and in Appendix B of the dictionary.
http://www.jsoftware.com/help/release/iamend.htm http://www.jsoftware.com/help/dictionary/special.htm ----- Original Message ----- From: Yuvaraj Athur Raghuvir <[EMAIL PROTECTED]> Date: Wednesday, October 25, 2006 5:14 pm Subject: Re: [Jprogramming] Choose Operators > If this 'rediscovery' has to be recorded, which would be the best > place - Dictionary, Phrases or somewhere else? > > > On 10/25/06, Roger Hui <[EMAIL PROTECTED]> wrote: > > The "recently" in the quoted text dates from the > > year 2000 in the J4.05 release notes: > > > > http://www.jsoftware.com/help/release/iamend.htm > > > > > > > > ----- Original Message ----- > > From: Henry Rich <[EMAIL PROTECTED]> > > Date: Wednesday, October 25, 2006 5:38 am > > Subject: RE: [Jprogramming] Choose Operators > > > > > The forms of this idiom that assign the result to a name > > > benefit from some special code: > > > > > > The phrase b}x,:y for numeric x and y is equivalent to the > > > well-known phrase (x*b)+y*-.b . Recently, special code has > > > been implemented for the phrase name=: c}x,y,...,:z , with > > > boolean c as a special case, and the amendment is done in > > > place if name is x or y and c is boolean. (In-place > > > amendment is eschewed for integral c due to the possibility > > > of index error.) ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
