Thank you very much, Boss! - Bo
>________________________________ > Fra: R.E. Boss <r.e.b...@planet.nl> >Til: 'Programming forum' <programming@jsoftware.com> >Sendt: 12:29 torsdag den 9. februar 2012 >Emne: Re: [Jprogramming] typo in concrete math companion, ([.) > >In http://www.jsoftware.com/jwiki/PrimitivePrimitives substitutes are >defined. > > >R.E. Boss > > >> -----Oorspronkelijk bericht----- >> Van: programming-boun...@jsoftware.com [mailto:programming- >> boun...@jsoftware.com] Namens R.E. Boss >> Verzonden: donderdag 9 februari 2012 12:26 >> Aan: 'Programming forum' >> Onderwerp: Re: [Jprogramming] typo in concrete math companion, ([.) >> >> see http://www.jsoftware.com/help/release/status.htm#4.05 when [. and ]. >> were introduced and http://www.jsoftware.com/help/release/noncpat.htm >> where >> they were removed. >> >> >> R.E. Boss >> >> >> > -----Oorspronkelijk bericht----- >> > Van: programming-boun...@jsoftware.com [mailto:programming- >> > boun...@jsoftware.com] Namens Bo Jacoby >> > Verzonden: donderdag 9 februari 2012 12:12 >> > Aan: Programmingforum >> > Onderwerp: [Jprogramming] typo in concrete math companion, ([.) >> > >> > >> > >> > http://www.jsoftware.com/books/pdf/cmc.pdf chapter 5, page 44, says >> > >> > The binomial theorem expresses a power of a sum (that is, (x+y)^t) as an >> > equivalent >> > weighted sum of products of ascending powers of x and descending >> powers >> > of y: >> > x=: 3 [ y=: 5 [ t=: 4 [. Ei=: i.@>: >> > >> > I didn't understand [. , nor did the interpreter. >> > >> > |spelling error >> > | x=: 3 [ y=: 5 [ t=: 4 [. Ei=: i.@>: >> > | ^ >> > >> > >> > I guessed that is was supposed to say >> > x=: 3 [ y=: 5 [ t=: 4 [ Ei=: i.@>: >> > but that doesn't work either: >> > x >> > 3 [ (5 [ (4 [ (i.@>:))) >> > y >> > 5 [ (4 [ (i.@>:)) >> > t >> > 4 [ (i.@>:) >> > Ei >> > i.@>: >> > >> > >> > - Bo >> > ---------------------------------------------------------------------- >> > 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 > > > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
