I agree with you. But does the section in the Vocabulary for dyadic $ that refers to fit & fill describe the behaviour seen by the expression: 4$!.999[i.0 ?
http://www.jsoftware.com/help/dictionary/d210.htm "The shape of x$y is x,siy where siy is the shape of an item of y; x$y gives a length error if y is empty and x,siy does not contain a zero." "The fit conjunction ($!.f) provides fill specified by the atom f , or the normal fill defined under Take ({.) if f is an empty vector." ======= Raul Miller on Fri Nov 30 20:35:33 HKT 2007 wrote: > I believe 4$'' gives you a length error because in the general case > fill is ambiguous and ambiguous fill can cause problems later. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
