Henry, experiments with 3!:3 make me guess <0$0 as a correct definition of a: but I have no clue how to define verb test. --Kip Murray
Sent from my iPad > On Feb 15, 2014, at 11:28 AM, Henry Rich <[email protected]> wrote: > > The Dictionary defines a: as <$0, but in fact the two are not interchangeable. > > The challenge is to demonstrate this: write a verb that produces a result > when applied to a:, but gives domain error when applied to <$0 . > > test a: > > test <$0 > |domain error: test > | test<$0 > > > Then, give a correct definition of a: . > > Henry Rich > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
