Hi, Isn’t it a convention that a null character vector behaves the same as a null numeric vector in an arithmetic context?
I get the following results in J $$ 2 2 #: i. 0 2 $$ 2 2 #: '' 1 Yet in APL, of course… ⍴⍴2 2 ⊤'' 2 ⍴⍴2 2 ⊤⍳0 2 This seems somewhat unhelpful. Regards, Mike ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm