#19191: LatticePoset: add is_planar()
-------------------------------------+-------------------------------------
Reporter: jmantysalo | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.9
Component: combinatorics | Resolution:
Keywords: | Merged in:
Authors: Jori Mäntysalo | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/jmantysalo/latticeposet__add_is_planar__|
c669ecbf2476518175f0719ba25e76cdc05f1521
Dependencies: | Stopgaps:
-------------------------------------+-------------------------------------
Comment (by jmantysalo):
Replying to [comment:15 ncohen]:
> As a reviewer, I just want to make sure that what the user will
understand is what actually happens.
How about
"A lattice is planar if it's Hasse diagram has an upward planar drawing.
In other words, planar lattice can be drawn without crossing lines and
every covering relation directed upwards."
?
--
Ticket URL: <http://trac.sagemath.org/ticket/19191#comment:16>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/sage-trac.
For more options, visit https://groups.google.com/d/optout.
