Almost nothing involving _. can be considered a bug. The only exceptions are 128!:5 and certain primitives noted in http://www.jsoftware.com/help/dictionary/d031.htm .
----- Original Message ----- From: Mark Niemiec <[email protected]> Date: Monday, May 3, 2010 17:29 Subject: [Jprogramming] Bug in Self-Classify To: J Programming Forum <[email protected]> > I encountered the following behavior, which surprised me > (even though it follows from the strict definition of Nub in the > dictionary): ~. 1 _. 2 > 1 2 > So it appears that Nub not only removes duplicates, it removes all > indefinites as well. > From this, it is reasonable that: > $= , _. > 0 1 > However, if one uses an atom (which should produce the same result), > one sees this: > $= _. > 1 1 > = _. > 1 ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
