#7477: Matroids
----------------------------------------------------+-----------------------
Reporter: ncohen | Owner: jkantor
Type: enhancement | Status:
needs_work
Priority: major | Milestone: sage-5.11
Component: combinatorics | Resolution:
Keywords: sd48 | Work issues:
Report Upstream: N/A | Reviewers: Volker
Braun, Rob Beezer
Authors: Stefan van Zwam, Rudi Pendavingh | Merged in:
Dependencies: #14669, #14668, #9880 | Stopgaps:
----------------------------------------------------+-----------------------
Changes (by jdemeyer):
* dependencies: #14669, #14668 => #14669, #14668, #9880
Comment:
This needs to be rebased to #9880:
{{{
sage -t --long devel/sage/sage/matroids/matroid.pyx
**********************************************************************
File "devel/sage/sage/matroids/matroid.pyx", line 188, in
sage.matroids.matroid
Failed example:
M.tutte_polynomial(var('x'), var('y'))
Expected:
x^2*y^2 + 2*x*y^3 + x^3 + y^4 + 3*x^2*y + 3*x*y^2 + y^3
Got:
x^2*y^2 + 2*x*y^3 + y^4 + x^3 + 3*x^2*y + 3*x*y^2 + y^3
**********************************************************************
File "devel/sage/sage/matroids/matroid.pyx", line 362, in
sage.matroids.matroid.Matroid
Failed example:
M.tutte_polynomial(var('x'), var('y'))
Expected:
x^2*y^2 + 2*x*y^3 + x^3 + y^4 + 3*x^2*y + 3*x*y^2 + y^3
Got:
x^2*y^2 + 2*x*y^3 + y^4 + x^3 + 3*x^2*y + 3*x*y^2 + y^3
**********************************************************************
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7477#comment:69>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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