Caps also appear if you generate a tacit expression using "13 :" e.g.
13 : '%+/%y' [: % [: +/ % (13 : '%+/%y') 10 20 40 5.7142857 ([: % [: +/ %) 10 20 40 5.7142857 I like the dual version for this because it's conceptually closer to what is probably intended by "the inverse of the sum of the inverses" i.e. when calculating the harmonic mean. On Thu, Feb 4, 2010 at 5:56 PM, Alex Gian <[email protected]> wrote: > > ... Cap ( [: ) looks cool too, but I haven't encountered a > similar construct before. E.g. I can't intuitively see why Ric's > suggestion ( [: % [: +/ % ) isn't ( [: % [: +/ [: % ), guess I'll just > have to rtfm. > ... > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > -- Devon McCormick, CFA ^me^ at acm. org is my preferred e-mail ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
