Different behavior of empty vectors in J

Well - I haven't seen and postings about the

challenge I posted (did it even get out?) about

finding instances where

a=.''

and

b=.i.0

give different behaviors. Here is the one that

a colleague showed me:

a ? 5 NB. generates an error

domain error

a ?5

b ? 5 NB. empty result

Oh well - not too exciting - I had really hoped

others would find more interesting examples.

Cheers

Cliff

--

Clifford A. Reiter

Mathematics Department, Lafayette College

Easton, PA 18042 USA, 610-250-5277