+
+ //@{
+ /// there is a subtle difference between these two methods.
+ /// cellInset(r,c);
+ /// and
+ /// cellInset(cellIndex(r,c));
+ /// can return different things. this is because cellIndex(r,c)
+ /// returns the VISIBLE cell at r,c, which may be the same as the
+ /// cell at the previous row or column, if we're dealing with some
+ /// multirow or multicell.