Adding "format='adjacency_matrix') doesn't change anything. I still don't understand why the rank function isn't working on this Hasse diagram and how to make it work. It works fine in the example on the page I quoted.
I disagree about the arrow from 0 to 2. Yes, there is such an arrow in the digraph, but this should not appear in the Hasse diagram because 0 does not cover 2 since there is an arrow from 0 to 1 and from 1 to 2. ***************************************************** Raymond N. Greenwell [email protected] Professor of Mathematics (516) 463-5573 103 Hofstra University Hempstead, NY 11549-1030 http://people.hofstra.edu/rgreenwell -- To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
