So, that is what I was missing. It seems that one can literally fix the problem of passing named verbs (at least it works for simple examples); make the wrapper,
qromb=. 1 : 0 NB. Base wrapper qromb_nr_ (u f.`'') ; y ) square=. *: square qromb 1 2 2.33333333 square=. 3 : ' *: y' square qromb 1 2 2.33333333 Regarding "calling qromb inside of qromb" and "the current code can't deal with this kind of recursion" you are referring to the code I provided not the method for trying to integrate. Right? I ask because the thread subject suggest to me that adverbs and conjunctions present a problem that verbs do not. However, qromb_nr_ is a verb; maybe there would be a problem with the wrapper? I do not know (as I said know very little about explicit programming). On Wed, Apr 5, 2017 at 5:57 PM, Xiao-Yong Jin <jinxiaoy...@gmail.com> wrote: > > > On Apr 5, 2017, at 4:33 PM, Jose Mario Quintana < > jose.mario.quint...@gmail.com> wrote: > > > > *: qromb 1 2 > > 2.33333 > > > > ((*: qromb 1 2) * *:) qromb 1 2 > > 5.44444 > > > > coname'' > > ┌────┐ > > │base│ > > └────┘ > > > > > > I must have missed something. > > > Try pass in a named verb. > > And when I said calling qromb inside of qromb, I wanted to do a 2D > integration. > So an integration of the function x*y with x from 0 to 1 and y from 0 to 1 > can be > f=:3 :'*&y qromb 0 1' NB.integrate over x given y > f qromb 0 1 NB.integrate over y > One should expect the result being 0.25, but don't try this. > The current code can't deal with this kind of recursion. > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
