Thanks! However, I donot fully understand why mp works, where, mp =: +/ . *
Assuming this is a fork, I should have x mp y <=> x(+/ . *) y <=> (x +/ y) . (x * y) Applying this to A & B as in FAQ, I get (A +/ B) . (A * B) |length error | (A+/B) .(A *B) Why? Or is mp treated as an atomic phrase? Some clues would help....my guess is that dot is the place where I donot understand what is happening.... On 10/1/06, Henry Rich <[EMAIL PROTECTED]> wrote:
Added as question 6. Henry Rich > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Yuvaraj Athur Raghuvir > Sent: Saturday, September 30, 2006 11:49 PM > To: Programming forum > Subject: Re: [Jprogramming] J FAQ > > Topic to add: *A * B when A =. 1 2 $ 3 _2 and B =. 2 1 $ 4 5 * > ** > I was struggling with this until I found this posting in the > forum lists. > > I think this is a place where J's semantic interpretation - > though well > justified in Prof Iverson's invention - differs from what I have be > 'programmed' to believe. > > > > On 9/27/06, Jose Mario Quintana > <[EMAIL PROTECTED]> wrote: > > > > > [EMAIL PROTECTED] On Behalf Of Yuvaraj Athur Raghuvir > > > I was wondering if the archives can be searched as well. Clearly > > > > http://www.jsoftware.com/forumsearch > > > > > many answers for new comers like me are already there. If that is > > possible, > > > then the FAQ could be updated with old responses too.... > > > > > > ~Yuva > > > > > > > > > ---------------------------------------------------------------------- > > For information about J forums see > http://www.jsoftware.com/forums.htm > > > ---------------------------------------------------------------------- > For information about J forums see > http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
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