No, u is the left argument and v is the right. u@v for example.
Henry Rich On 12/6/2022 6:29 PM, Brian Schott wrote:
Raul, I'm beginning to understand your explanation of lfold=: {{ ]F..(u~) }} . You're saying that j conjunctions have a left and right argument we call v and u, respectively (from the perspective of the interpreter). In that context, u is on the right of the conjunction, and that's why you used u here, not because it's the u in Folds. That is confusing, but I can accept that. Thank you, again, On Tue, Dec 6, 2022 at 5:36 PM Raul Miller <rauldmil...@gmail.com> wrote:Context is important here. In lfold=: {{ ]F..(u~) }} The u for lfold is the v for F.. The J parser is not going to interpret u or v according to some referenced definition -- it's going to interpret u or v according to the definition it's currently interpreting. The same holds for x and y. Consider this example: thing1=: {{ y thing2 x }} thing2=: ,&< thing1/i.3 +-----+-+ |+-+-+|0| ||2|1|| | |+-+-+| | +-----+-+ thing2/i.3 +-+-----+ |0|+-+-+| | ||1|2|| | |+-+-+| +-+-----+ I hope this makes sense... -- Raul---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
