On Tue, Jul 17, 2012 at 10:52 AM, Istvan Kadar <[email protected]> wrote: > Dear Forum, > > load 'viewmat' > a=: ?20 20$2 > b=:viewmat a > $b > 0 0 > #b > 0
The result from viewmat is nothing -- no rows, and no columns of nothing. > c=:(viewmat^:_1) b > |domain error viewmat is not designed to display nothing. > | c=: (viewmat^:_1)b > > What about? The |domain error happens before c=: would have happened. -- Raul ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
