Raul Miller wrote: > On Fri, Mar 19, 2010 at 1:43 PM, David Ward Lambert > <[email protected]> wrote: >> NB. j programmers MUST understand data flow. >> NB. x f^:3 y differs from (f&y)^:3 x > > To illustrate this we should find an operation which > is not associative and which produces a plausible result > for one of those two cases.
It is easy to show by example that these are different, for example x=:2 y=:4 f=:- x f^:3 y _2 (f&y)^:3 x _10 Best wishes, John ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
