#7477: Matroids
---------------------------+------------------------------------------------
Reporter: ncohen | Owner: jkantor
Type: enhancement | Status: new
Priority: major | Milestone: sage-wishlist
Component: numerical | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
---------------------------+------------------------------------------------
Comment(by Stefan):
There is serious interest from the matroid theory community in creating a
Sage package. It would provide similar functionality to the graph theory
package: lots of methods (extensions, representations, Tutte polynomials,
connectivity tests, isomorphism and minor testing, ...) and a database
with named matroids and small matroids.
Macek has several shortcomings that make it unsuitable; I will mention a
few. It only works for representable matroids over the (small number of)
partial fields implemented. It has an esoteric command language based on
vertex-labelled trees. It has bugs. For instance, it cannot read its own
output without modification, and is known not to detect minors when they
are clearly present. Its author considers it "done", and will not support
it.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7477#comment:3>
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 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-trac?hl=en.
