SageMath 6.9 released

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Samuel Lelièvre

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Nov 25, 2015, 3:07:27 AM11/25/15
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News from SageMath, the Sage Mathematics Software System!

SageMath 6.9 was released on 10 October 2015.

It is available, in source and binary form, from

* http://www.sagemath.org/download.html

SageMath, also known as Sage (website: http://sagemath.org/),
is developed by volunteers and combines over 90 open-source
packages. For installation instructions, see

* http://doc.sagemath.org/html/en/installation/index.html

The following page lists the platforms on which Sage should work:

* http://wiki.sagemath.org/SupportedPlatforms

Please report any questions and/or problems to the Ask Sage questions
and answers forum, or to the sage-support or sage-devel mailing lists.

Ask Sage: http://ask.sagemath.org/
sage-support: http://groups.google.com/group/sage-support
sage-devel: http://groups.google.com/group/sage-devel

You can also drop by in the #sagemath IRC channel on freenode.

The following 96 people contributed to this release.
Of those, 9 made their first contribution to Sage:

- Alex Ghitza
- André Apitzsch
- Andrew Gainer-Dewar
- Andrey Novoseltsev
- Anna Haensch
- Anne Schilling
- Aram Dermenjian [first contribution]
- Benjamin Hackl
- Bruno Grenet
- Buck Evan
- Burcin Erocal
- Chao Xu
- Christian Stump
- Christopher Olah
- Clemens Heuberger
- Clément Pernet
- Daniel Krenn
- Darij Grinberg
- David Coudert
- David Einstein
- David Loeffler
- David Lucas
- Dima Pasechnik
- Emily Gunawan
- Emmanuel Charpentier
- Eric Gourgoulhon
- Florent Hivert
- François Bissey
- Franco Saliola
- Frédéric Chapoton
- Frederic Han
- George H. Seelinger
- Gregg Musiker
- Hao Chen
- Isuru Fernando [first contribution]
- James Campbell
- Jan Keitel
- Jean-Baptiste Priez
- Jean Michel [first contribution]
- Jean-Pierre Flori
- Jeroen Demeyer
- Jessica Striker
- Johan Sebastian Rosenkilde Nielsen
- John Cremona
- John Palmieri
- Jori Mäntysalo
- Julian Rüth
- Karl-Dieter Crisman
- Kartik Venkatram [first contribution]
- Kevin Dilks
- Kimball Martin [first contribution]
- Kwankyu Lee
- Luis Felipe Tabera Alonso
- Marc Mezzarobba
- Marco Robado
- Martin Albrecht
- Martin Rubey
- Martin von Gagern
- Matthias Koeppe
- Mélodie Lapointe [first contribution]
- Michael Orlitzky
- Michele Borassi
- Miguel Marco
- Mike Hansen
- Mike Zabrocki
- Nadia Lafrenière
- Nathann Cohen
- Nicolas M. Thiéry
- Nils Bruin
- Paulo César Pereira de Andrade
- Paul Zimmermann
- Peijun Xiao [first contribution]
- Peter Bruin
- Quentin Honoré
- Ralf Stephan
- R. Andrew Ohana
- Robert Bradshaw
- Rudi Pendavingh
- Sara Kropf
- Sebastien Gouezel
- Sébastien Labbé
- Shashank Shalgar [first contribution]
- Simon King
- Søren Fuglede Jørgensen [first contribution]
- Stefan van Zwam
- Thierry Dumont
- Thierry Monteil
- Thomas Gagne
- Tobenna P. Igwe
- Travis Scholl
- Travis Scrimshaw
- Vince Knight
- Vincent Delecroix
- Viviane Pons
- Volker Braun
- Yuan Zhou

* Release manager: Volker Braun.

* We closed 304 tickets in this release, listed below.

You can get the details about any ticket by looking it up
on http://trac.sagemath.org/, eg for ticket #18929, visit

http://trac.sagemath.org/18929

Merged in sage-6.9.beta0:

#7744: Christopher Olah, Frédéric Chapoton: STL, AMF, X3D and PLY
export for 3D printing [Reviewed by Miguel Marco]
#11814: Sébastien Labbé: Catch and fix the segmentation fault in
dlx_solver [Reviewed by Jeroen Demeyer]
#14243: John Palmieri: Try not to pick up user versions of things like
numpy, mpl [Reviewed by Buck Evan]
#14585: Simon King, Jeroen Demeyer: Make lazy_format and lazy_string
faster [Reviewed by Simon King, Jeroen Demeyer]
#15463: Travis Scrimshaw: Implement crystal morphisms, subcrystals,
and virtual crystals [Reviewed by Anne Schilling]
#16106: Sara Kropf, Clemens Heuberger: Delete deprecation warning in
Transducer.cartesian_product [Reviewed by Daniel Krenn]
#16133: Daniel Krenn, Clemens Heuberger: delete deprecation warning in
FSM.process and __call__ [Reviewed by Daniel Krenn]
#17485: Jori Mäntysalo: Poset: Documentation of
characteristic_polynomial [Reviewed by Frédéric Chapoton]
#18331: Sara Kropf, Clemens Heuberger: Introduce initial distribution
for Markov chains [Reviewed by Clemens Heuberger]
#18583: Jeroen Demeyer: Clean up PARI declarations [Reviewed by
Jean-Pierre Flori]
#18760: Jori Mäntysalo: Posets: Slightly faster is_lattice() [Reviewed
by David Einstein]
#18791: Chao Xu: Matroid k-connectivity [Reviewed by Rudi Pendavingh]
#18812: Nathann Cohen: latte_int: count integer points [Reviewed by
Jeroen Demeyer, Dima Pasechnik]
#18864: David Coudert: New method for the eccentricity of undirected
graphs [Reviewed by Michele Borassi]
#18868: Nathann Cohen, Jeroen Demeyer: a MemoryAllocator object for
easier Cython memory management [Reviewed by Jeroen Demeyer, Volker
Braun]
#18871: David Coudert: MILP formulation for cutwidth [Reviewed by Nathann Cohen]
#18898: Travis Scrimshaw: Fix sorting of riggings when doing
complement_rigging [Reviewed by Anne Schilling]
#18901: Vincent Delecroix: Bug in continued fractions of real literal
[Reviewed by Sébastien Labbé]
#18906: Michele Borassi: Refactor min spanning tree [Reviewed by David Coudert]
#18923: André Apitzsch: Remove flag METH_OLDARGS [Reviewed by Jeroen Demeyer]
#18925: Jori Mäntysalo: Poset documentation polishing: covers
[Reviewed by Travis Scrimshaw]
#18926: Nathann Cohen: Auto-generated index of functions [Reviewed by
Johan Sebastian Rosenkilde Nielsen]
#18943: Frédéric Chapoton: typo in infinity crystal [Reviewed by
Travis Scrimshaw]
#18947: Nathann Cohen: Add a -fix-pkg-checksums argument to sage
[Reviewed by Sébastien Labbé]
#18949: Frédéric Chapoton: a doc typo in graph.py [Reviewed by Nathann Cohen]
#18950: Sébastien Labbé: Remove make_dlxwrapper from the sage
namespace [Reviewed by Jeroen Demeyer]
#18962: Volker Braun: Double free in ft2font [Reviewed by François Bissey]

Merged in sage-6.9.beta1:

#10194: Florent Hivert: Set factories [Reviewed by Frédéric Chapoton]
#12607: Frédéric Chapoton: ChainComplex reports zero homology groups
(depending on ChomP) [Reviewed by John Palmieri]
#17462: Nathann Cohen: Remove the (deprecated) _boundary parameter
[Reviewed by David Coudert]
#18089: Clemens Heuberger, Sara Kropf:
Automaton.shannon_parry_markov_chain: New method [Reviewed by Sara
Kropf, Clemens Heuberger]
#18282: Marc Mezzarobba: Fixes, cleanup and improvements to the
default evaluation method for univariate polynomials [Reviewed by Ralf
Stephan]
#18556: Clemens Heuberger: FiniteStateMachine.is_deterministic:
machines with >1 initial states are non-deterministic [Reviewed by
Sara Kropf]
#18557: Clemens Heuberger: Implement FiniteStateMachine.disjoint_union
(and .__or__) [Reviewed by Sara Kropf]
#18585: Bruno Grenet: Comparison of sparse polynomials [Reviewed by
Vincent Delecroix]
#18608: Quentin Honoré, Vincent Delecroix: Arc method in
BalancedIncompleteBlockDesign class [Reviewed by Nathann Cohen]
#18742: Peijun Xiao, Matthias Koeppe, Andrey Novoseltsev:
interactive_simplex_method: Support several styles corresponding to
major textbooks [Reviewed by Andrey Novoseltsev, Matthias Koeppe]
#18775: Nathann Cohen: polytopes.icosidodecahedron and
graphs.TruncatedIcosidodecahedralGraph [Reviewed by Frédéric Chapoton]
#18831: Jean-Pierre Flori: Hyperelliptic point counting various
methods disagree [Reviewed by Frédéric Chapoton]
#18860: Nathann Cohen: Faster Poyhedron.graph() [Reviewed by Dima Pasechnik]
#18876: Michele Borassi: Boost Cuthill-McKee, King Ordering [Reviewed
by David Coudert]
#18910: Michele Borassi: Boost minimum spanning tree [Reviewed by David Coudert]
#18934: Nathann Cohen: New (v,6,1)-BIBD with v<=201 [Reviewed by Dima Pasechnik]
#18938: Michele Borassi: Refactor shortest paths [Reviewed by David Coudert]
#18948: Nathann Cohen: Strongly Regular Graphs database [Reviewed by
Dima Pasechnik]
#18960: Nathann Cohen: Strongly Regular Graphs from two-weight codes
[Reviewed by Dima Pasechnik]
#18961: Dima Pasechnik: upgrade ECL to 15.3.7 [Reviewed by François Bissey]
#18963: Clemens Heuberger: Remove 5 occurrences of FSMOldProcessOutput
(Followup to #16133) [Reviewed by Daniel Krenn]
#18967: John Palmieri: Silence the messages about deleting empty
directories [Reviewed by Volker Braun]
#18975: John Palmieri: make searches case-insensitive by default
[Reviewed by Dima Pasechnik]
#18976: Volker Braun: Update to IPython 3.2.1 [Reviewed by François Bissey]
#18977: Julian Rüth: ncurses fails to build with GCC 5.2 [Reviewed by
André Apitzsch]
#18978: Julian Rüth: gf2x fails to build with GCC 5.2 [Reviewed by
André Apitzsch]
#18988: Nathann Cohen: Orthogonal Polar graphs in
strongly_regular_graph [Reviewed by Dima Pasechnik]
#18989: Clemens Heuberger: Incorrect input_alphabet in
FiniteStateMachine.disjoint_union [Reviewed by Daniel Krenn]
#18991: Nathann Cohen: Remove useful doctest [Reviewed by Dima Pasechnik]
#18993: Jan Keitel: sage-list-packages should ignore files in
build/pkgs/ [Reviewed by Volker Braun]

Merged in sage-6.9.beta2:

#10224: Thierry Monteil: (new-style) packages for saclib 2.2.6 and
qepcad-B.1.69 [Reviewed by Jeroen Demeyer, Matthias Koeppe, Dima
Pasechnik]
#10951: Paul Zimmermann: ecmfactor should take as optional argument
the sigma value [Reviewed by Mike Hansen, Frédéric Chapoton,
Jean-Pierre Flori]
#14846: Andrew Gainer-Dewar: CycleIndexSeries derivative, integral,
exponential methods are not combinatorial [Reviewed by Martin Rubey]
#17425: Anna Haensch: Rational isometry test for quadratic forms over
number fields [Reviewed by Vincent Delecroix]
#17542: Nathann Cohen: IncidenceStructure.coloring [Reviewed by
Vincent Delecroix]
#18360: Ralf Stephan: doctest fix for: symbolic matrices fail
operations minus and mul [Reviewed by Frédéric Chapoton]
#18568: Ralf Stephan: doctest fix for wrong expansion of
(x+sqrt(2)*x)^2 [Reviewed by Frédéric Chapoton]
#18613: Andrey Novoseltsev: Errors with is_isomorphic() for trivial
cones [Reviewed by Michael Orlitzky, Volker Braun]
#18695: Ralf Stephan: propagate the variable domain to the assumptions
database [Reviewed by Vincent Delecroix]
#18714: Thomas Gagne: Dual bases for finite fields [Reviewed by
Vincent Delecroix]
#18922: Travis Scrimshaw: Speedup creation of spin crystals [Reviewed
by Anne Schilling]
#18929: Michele Borassi: Include igraph library [Reviewed by Nathann
Cohen, David Coudert]
#18931: Michele Borassi: Boost shortest paths [Reviewed by David Coudert]
#18953: Jeroen Demeyer: Replace pipestatus by build/bin/sage-logger
[Reviewed by Volker Braun]
#18982: Nathann Cohen: New non-existence tests for strongly regular
graphs [Reviewed by Jori Mäntysalo]
#18986: Nathann Cohen: IncidenceStructure.is_uniform, is_regular, and
complement [Reviewed by Dima Pasechnik]
#18994: Volker Braun: Update to setuptools 18.1 [Reviewed by François Bissey]
#18995: Nathann Cohen: Approximate LP solving with GLPK: do not raise
exceptions [Reviewed by David Coudert]
#18996: Volker Braun: pyzmq depends on cython [Reviewed by François Bissey]
#18998: Nathann Cohen, Dima Pasechnik: Add a (175,72,20,36)-strongly
regular graph, and two more similarly constructed ones [Reviewed by
Nathann Cohen, Dima Pasechnik]
#19012: Vincent Delecroix: Bug in intersection of polyhedron (generic
backend) [Reviewed by Nathann Cohen]
#19013: Vincent Delecroix: Bug 2 in intersection of polyhedron
(generic backend) [Reviewed by Nathann Cohen]
#19015: Jori Mäntysalo: Doc formatting error: Undirected graphs,
is_triangle_free [Reviewed by Nathann Cohen]
#19017: Benjamin Hackl, Daniel Krenn: improving the big_oh interface +
passing keywords [Reviewed by Benjamin Hackl, Daniel Krenn]
#19020: Vincent Delecroix: random failure with
BalancedIncompleteBlockDesign.arc [Reviewed by Nathann Cohen]
#19022: Frédéric Chapoton: a few badly formatted REFERENCE block
[Reviewed by Nathann Cohen]

Merged in sage-6.9.beta3:

#10922: Frédéric Chapoton: Fix some multiline platonic solids plot
documentation [Reviewed by Nathann Cohen]
#18454: Michael Orlitzky: New `random_cone()` function [Reviewed by
Andrey Novoseltsev]
#18687: Chao Xu: Implement the shifting algorithm for 3 and
4-connectivity [Reviewed by Stefan van Zwam]
#18696: Michael Orlitzky: Add lineality() method for convex cones
[Reviewed by Andrey Novoseltsev]
#18701: Michael Orlitzky: Add codim() method for convex cones
[Reviewed by Andrey Novoseltsev]
#18712: Vince Knight, James Campbell: Create test for Degeneracy in
Normal Form Games [Reviewed by Dima Pasechnik, Tobenna P. Igwe]
#18740: Peter Bruin: Reduce overhead for relative number field
elements [Reviewed by Vincent Delecroix]
#18807: Kwankyu Lee: Provide .monomial() method for multi-variate
polynomial rings [Reviewed by Vincent Delecroix]
#18824: Martin Albrecht, Frederic Han: Add
MultiPolynomialIdeal.groebner_basis("libgiac") [Reviewed by Martin
Albrecht, Frederic Han]
#18915: David Lucas: Finite field extension fails if modulus is of
type int [Reviewed by Vincent Delecroix]
#18919: Jeroen Demeyer: Interrupt in PARI's pari_malloc() hangs Sage
[Reviewed by Vincent Delecroix]
#18921: Ralf Stephan: propagate integer variable domain to Pynac
[Reviewed by Vincent Delecroix]
#18933: Jeroen Demeyer: Remove use of malloc() [Reviewed by Vincent Delecroix]
#18959: Jori Mäntysalo: Poset documentation polishing: integer-valued
properties [Reviewed by Nathann Cohen]
#19003: Michele Borassi: igraph_max_flow [Reviewed by Nathann Cohen]
#19004: Volker Braun, John Palmieri: Do not search old-style spkgs
[Reviewed by John Palmieri, Volker Braun]
#19007: Michele Borassi: Refactor Closeness Centrality [Reviewed by
David Coudert]
#19009: Vincent Delecroix: upgrade flint to 2.5.2 [Reviewed by François Bissey]
#19014: Michele Borassi: Tarjan Strongly Connected Components
Algorithm [Reviewed by David Coudert]
#19018: Nathann Cohen: More SRGs using Regular Symmetric Hadamard
matric with Constant Diagonal [Reviewed by Dima Pasechnik]
#19019: Nathann Cohen: Very careless typoes in strongly_regular_db
[Reviewed by Dima Pasechnik]
#19021: Kwankyu Lee: Now the default ipython profile location is
"profile_default" not "profile_sage" [Reviewed by Volker Braun]
#19026: Vincent Delecroix: better matrix generic dense [Reviewed by
Marc Mezzarobba]
#19037: David Coudert: Cplex backend: allow to set logfile [Reviewed
by Nathann Cohen]
#19047: Daniel Krenn: let QQ.some_elements return more than one
element [Reviewed by Benjamin Hackl]
#19052: Sebastien Gouezel: Change _N to _level in zero_sums.pyx
[Reviewed by Vincent Delecroix]
#19054: Jeroen Demeyer: Missing "static" in ntlwrap.cpp [Reviewed by
François Bissey]
#19057: Sebastien Gouezel: Fix farey_symbol compilation on cygwin
[Reviewed by François Bissey]

Merged in sage-6.9.beta4:

#252: Peter Bruin: Make number fields work when polynomial not
integral or not monic. [Reviewed by Kartik Venkatram]
#7298: Martin von Gagern: use html5 video tag for animations [Reviewed
by Volker Braun]
#17567: Martin von Gagern: Cross product matrix (hat operator)
[Reviewed by Travis Scrimshaw]
#17818: Martin Rubey: Interface to FindStat [Reviewed by Christian
Stump, Viviane Pons]
#18168: Marc Mezzarobba: Ref: add various missing modules to
r/quadratic_forms [Reviewed by Jeroen Demeyer]
#18567: Jori Mäntysalo, Travis Scrimshaw: LatticePoset: add
maximal_sublattices() [Reviewed by Travis Scrimshaw, Jori Mäntysalo]
#18720: George H. Seelinger: Change diagram algebra basis set
partitions from list to generator [Reviewed by Travis Scrimshaw]
#18840: Jeroen Demeyer: Remove unused function make_morphism()
[Reviewed by Travis Scrimshaw]
#18927: Jeroen Demeyer: Upgrade Cython to 0.23.1 [Reviewed by François Bissey]
#18972: Dima Pasechnik: twographs and Seidel switching [Reviewed by
Nathann Cohen]
#19024: Jori Mäntysalo: Posets: Faster order filter and ideal
[Reviewed by Frédéric Chapoton]
#19027: Chao Xu: matroid partitioning, matroid union [Reviewed by
Stefan van Zwam]
#19031: Michele Borassi: New Algorithm for Top-K Closeness
Centralities [Reviewed by David Coudert]
#19044: Michael Orlitzky: Span of trivial cones [Reviewed by Andrey Novoseltsev]
#19049: Michele Borassi: New Hyperbolicity Algorithm [Reviewed by David Coudert]
#19056: Peter Bruin: Implement gauss_sum[_numerical] for Dirichlet
characters over QQbar [Reviewed by Frédéric Chapoton]
#19062: Frédéric Chapoton: cleanup of doc formatting [Reviewed by
Jeroen Demeyer]
#19065: John Palmieri: A few fixes and enhancements for chain complex
morphisms [Reviewed by Travis Scrimshaw]
#19070: Andrey Novoseltsev: Remove deprecated stuff for lattice
polytopes. [Reviewed by Volker Braun]
#19071: Andrey Novoseltsev: Construct lattice polytope faces as
polytopes [Reviewed by Volker Braun]
#19077: Andrey Novoseltsev: Greatly speed up equality check of equal
graphs [Reviewed by Jori Mäntysalo, Nathann Cohen]
#19081: Kartik Venkatram: More reimplementing matrix_integer_dense
using FLINT [Reviewed by R. Andrew Ohana]
#19085: François Bissey: Remove test for scons from
sage/tests/cmdline.py [Reviewed by Jeroen Demeyer]
#19091: John Cremona: eclib upgrade to version 20150827 (bugfix)
[Reviewed by Jeroen Demeyer]

Merged in sage-6.9.beta5:

#8906: Jean Michel, Marco Robado, Franco Saliola, Nicolas M. Thiéry:
Optional package for gap3 [Reviewed by Burcin Erocal, Christian Stump]
#16699: Luis Felipe Tabera Alonso: degree of multivariate polynomial
rings with weighted degree is inconsistent [Reviewed by Bruno Grenet]
#16924: Travis Scholl: Read DIMACS files [Reviewed by Martin Albrecht]
#17226: Jori Mäntysalo: LatticePoset: add Frattini sublattice
[Reviewed by Travis Scrimshaw]
#18078: Isuru Fernando: CMake experimental package [Reviewed by François Bissey]
#18292: Volker Braun: Fix HTML output [Reviewed by Andrey Novoseltsev]
#18437: R. Andrew Ohana: Switch from PolyBoRi to BRiAl [Reviewed by
François Bissey]
#18673: Jeroen Demeyer: Replace GP by PARI in basis_of_short_vectors()
[Reviewed by Vincent Delecroix]
#18997: Dima Pasechnik: Unitary and symplectic (dual) polar graphs
[Reviewed by Nathann Cohen]
#19005: Vincent Delecroix: inverse_series method for polynomials
[Reviewed by Marc Mezzarobba]
#19006: Vincent Delecroix: transcendental functions of polynomial
[Reviewed by Marc Mezzarobba]
#19045: Vincent Delecroix: better subs method for matrices [Reviewed
by Nathann Cohen, Thierry Monteil]
#19058: Marc Mezzarobba: Better tables of contents in the reference
manual [Reviewed by Nathann Cohen]
#19086: Emmanuel Charpentier: Upgrade R to 3.2.2 [Reviewed by Jeroen Demeyer]
#19089: François Bissey: freetype 2.6 fails to build on scientific
linux 7.1 [Reviewed by Jeroen Demeyer]
#19090: David Coudert: MIP backend: return MIP relative gap [Reviewed
by Nathann Cohen]
#19096: Nathann Cohen: Remove three class constructors from
designs.<tab> [Reviewed by Frédéric Chapoton]
#19099: Nathann Cohen: Always check output in strongly_regular_graph
[Reviewed by Dima Pasechnik]
#19103: Jeroen Demeyer: Add sage --location option to run
sage-location [Reviewed by Volker Braun]
#19106: Jeroen Demeyer, Dima Pasechnik, Eric Gourgoulhon, Paulo César
Pereira de Andrade, Simon King: Simplify instructions to install GAP
packages [Reviewed by Thierry Dumont, François Bissey]
#19109: Nathann Cohen: Fix name of graph.complement() [Reviewed by
David Coudert]
#19111: Jeroen Demeyer: Reimplement Souvigner_ISOM code by PARI
function [Reviewed by Peter Bruin]
#19117: Nathann Cohen: Check CPLEXBackend.solver_parameter [Reviewed
by David Coudert]
#19126: Frédéric Chapoton: found a doc mis-formatting in singleton
category [Reviewed by Nathann Cohen]

Merged in sage-6.9.beta6:

#17151: Ralf Stephan: symbolic Laguerre / associated Laguerre
polynomials [Reviewed by Marc Mezzarobba]
#17211: Martin Albrecht: m4rie testsuite fails with segfault on OSX
10.10 [Reviewed by John Palmieri, Volker Braun]
#18070: Clemens Heuberger: FiniteStateMachine: Moments of waiting time
[Reviewed by Daniel Krenn]
#18186: Vincent Delecroix: Add cardinality() to MatrixSpace [Reviewed
by Nathann Cohen]
#18246: Vincent Delecroix: remove naive __hash__ from SageObject
[Reviewed by Volker Braun, Nils Bruin]
#18547: Bruno Grenet: Improve polynomial powering in positive
characteristic [Reviewed by Jeroen Demeyer]
#18656: Jeroen Demeyer: Cache rational_diagonal_form() [Reviewed by
Vincent Delecroix]
#18814: Nathann Cohen: Polyhedron.delete -> _delete [Reviewed by Dima Pasechnik]
#18857: Jeroen Demeyer: Install fplll includes in the default location
[Reviewed by Marc Mezzarobba]
#18859: Jeroen Demeyer: Change sage -i to install with dependencies --
documentation [Reviewed by Ralf Stephan, John Palmieri, Nathann Cohen]
#18886: Jeroen Demeyer: Remove comparison boilerplate - part 3
[Reviewed by Marc Mezzarobba]
#18964: Clemens Heuberger: New Method: FiniteStateMachine.kleene_star
[Reviewed by Daniel Krenn]
#18965: Clemens Heuberger: New Method:
FiniteStateMachine.concatenation [Reviewed by Daniel Krenn]
#18973: Clemens Heuberger: New automaton recognizing a word [Reviewed
by Daniel Krenn]
#18979: Nils Bruin: avoid Maxima on creation of symbolic matrices
[Reviewed by Vincent Delecroix]
#18981: Clemens Heuberger: New Method: FiniteStateMachine.completion
[Reviewed by Daniel Krenn]
#18987: Sébastien Labbé: Parallel computation of number of solutions
in dancing links [Reviewed by Vincent Delecroix]
#18992: Clemens Heuberger: Automaton.determinisation: do not ignore
leading epsilon transitions [Reviewed by Daniel Krenn]
#19008: Jori Mäntysalo: Graphs, is_subgraph() documentation polishing
[Reviewed by Vincent Delecroix, Mélodie Lapointe]
#19011: Søren Fuglede Jørgensen: Add Jones representation of braid
groups and Jones polynomials of braid closures [Reviewed by Travis
Scrimshaw]
#19067: Nathann Cohen: Incomplete sentences in the automatically
generated documentation [Reviewed by Marc Mezzarobba]
#19079: Daniel Krenn: ConstructionFunctor: remove __str__ [Reviewed by
Marc Mezzarobba]
#19098: Dima Pasechnik: implement Taylor 2-graphs for U_3(q) and
related srg's [Reviewed by Nathann Cohen]
#19101: Jeroen Demeyer: Change sage -i to install with dependencies
[Reviewed by Volker Braun]
#19104: Jeroen Demeyer: Parse sage-spkg options in sage-spkg [Reviewed
by Volker Braun]
#19110: Benjamin Hackl: QQ(0)^-1 raises SIGFPE (which is caught)
[Reviewed by Jeroen Demeyer]
#19115: Jeroen Demeyer: Rename lib-clean target as sagelib-clean
[Reviewed by Marc Mezzarobba]
#19129: John Palmieri: Turn off test suite for Python 2 [Reviewed by
Andrey Novoseltsev]
#19133: Nathann Cohen: Three Witt-based strongly regular graphs
[Reviewed by Dima Pasechnik]
#19144: François Bissey: brial should depend on pkgconf [Reviewed by
Volker Braun]
#19146: François Bissey: brial also depends on python [Reviewed by
Jeroen Demeyer]
#19156: Jeroen Demeyer: Docbuilder intersphinx references have
undeterministic <a> titles [Reviewed by John Palmieri]
#19157: Vincent Delecroix: Remove trailing whitespace from doc sources
[Reviewed by Jeroen Demeyer]
#19159: Mélodie Lapointe: Check if a word is a Christoffel word.
[Reviewed by Nadia Lafrenière]
#19161: Nathann Cohen, Jori Mäntysalo: LatticePoset: faster
is_complemented() [Reviewed by Nadia Lafrenière]
#19164: Dima Pasechnik: Remove GAP3 package [Reviewed by Travis
Scrimshaw, Jeroen Demeyer]
#19166: Jeroen Demeyer: Replace conf.py copies by symlinks [Reviewed
by John Palmieri]
#19173: Jeroen Demeyer: Get rid of random.pxi [Reviewed by Travis Scrimshaw]
#19174: Dima Pasechnik: new style database_jones_numfield package
[Reviewed by Nathann Cohen]
#19175: John Palmieri: Convert ore_algebra into a new-style package
[Reviewed by Travis Scrimshaw]

Merged in sage-6.9.beta7:

#12005: Alex Ghitza, Jeroen Demeyer: Relativize should take one 'name'
if a morphism is given [Reviewed by Jeroen Demeyer, Luis Felipe Tabera
Alonso]
#12588: Ralf Stephan: doctest fix for abs(pi*I) should return pi
[Reviewed by Karl-Dieter Crisman, Vincent Delecroix]
#13597: Jeroen Demeyer: tutorial: fix hash-bang in section on
programming [Reviewed by John Palmieri]
#14003: Jori Mäntysalo: Implementation of a rank symmetric test for
posets [Reviewed by Frédéric Chapoton]
#14058: Robert Bradshaw, Nils Bruin: Weakly reference binary operation
codomains [Reviewed by Simon King, Frédéric Chapoton, Jean-Pierre
Flori, Sébastien Labbé]
#16759: Jeroen Demeyer: install_package() is obsolete [Reviewed by
John Palmieri]
#17299: Hao Chen, David Loeffler: Bug in LaTeX of modular symbols
[Reviewed by David Loeffler, Frédéric Chapoton]
#17600: Benjamin Hackl, Daniel Krenn: AsymptoticGrowthElement
[Reviewed by Daniel Krenn, Clemens Heuberger]
#18003: James Campbell, Vince Knight, Jessica Striker, Kevin Dilks,
Emily Gunawan: Implement Fully Packed Loop class [Reviewed by Jessica
Striker, Travis Scrimshaw]
#18118: Daniel Krenn: transducer: convenience option for process words
iteratively (and showing output) [Reviewed by Clemens Heuberger]
#18277: Vincent Delecroix: wrong category for cartesian square of
GF(5) [Reviewed by Nathann Cohen]
#18600: Bruno Grenet: Fix several methods for sparse polynomials
[Reviewed by Vincent Delecroix]
#18763: Yuan Zhou: COIN backend should support basis status and
tableau data functions [Reviewed by Vincent Delecroix]
#18930: Benjamin Hackl, Daniel Krenn: GrowthGroup: short notation
factory [Reviewed by Daniel Krenn, Clemens Heuberger]
#18946: Chao Xu: unweighted matroid intersection using blocking flow
approach [Reviewed by Stefan van Zwam]
#18954: Ralf Stephan: doctest special values of trig. functions with
arguments (m/n)*pi [Reviewed by Vincent Delecroix]
#18966: Clemens Heuberger: New Method: Automaton.complement [Reviewed
by Daniel Krenn]
#18980: Ralf Stephan: upgrade to Pynac-0.3.9.5 [Reviewed by Vincent Delecroix]
#19002: Travis Scrimshaw: Change behavior for vacancy numbers
[Reviewed by Anne Schilling]
#19023: Nathann Cohen, Frédéric Chapoton, Jori Mäntysalo: Minor typos
in 6.8 [Reviewed by Jori Mäntysalo, Nathann Cohen]
#19030: John Cremona: fix small bug in elliptic curve isogeny matrix
of maps [Reviewed by Volker Braun]
#19060: Peter Bruin: Fix gauss_sum() for Dirichlet characters over
cyclotomic fields [Reviewed by Frédéric Chapoton]
#19116: Jeroen Demeyer: Change sage -p to always behave like sage -p
-f [Reviewed by Travis Scrimshaw]
#19119: Jeroen Demeyer: Use PKG-clean target to implement sage -f PKG
[Reviewed by John Palmieri]
#19121: Jori Mäntysalo: Posets: connected_components() on connected
poset should return one-element list [Reviewed by Travis Scrimshaw]
#19128: Jeroen Demeyer: Upgrade to IPython 4.0.0 + Jupyter [Reviewed
by François Bissey, Volker Braun]
#19132: Jeroen Demeyer: Start a single process when running Sage
[Reviewed by Travis Scrimshaw]
#19135: Jeroen Demeyer: Restore Sage interrupt handler in Jupyter
[Reviewed by Volker Braun]
#19136: Dima Pasechnik: NO and NU graphs [Reviewed by Nathann Cohen]
#19148: Jeroen Demeyer: Get rid of signals.pxi [Reviewed by Vincent Delecroix]
#19158: Jeroen Demeyer: Undo the breaking of old-style packages
[Reviewed by Travis Scrimshaw]
#19165: Vincent Delecroix: Error in augmentation for mod 2 matrices
[Reviewed by John Palmieri]
#19167: Jeroen Demeyer: Deprecate ring_element.py and similar modules
[Reviewed by Travis Scrimshaw]
#19176: Travis Scrimshaw: Make LiE a new-style spkg [Reviewed by Jeroen Demeyer]
#19180: Nathann Cohen: A (220,84,38,28)-strongly regular graph
[Reviewed by Dima Pasechnik]
#19181: Frédéric Chapoton: sage_gymnasium: typo in
"Partialbruchzerlegung" [Reviewed by Travis Scrimshaw]
#19182: Jeroen Demeyer: Allow sage -n jupyter [Reviewed by Volker Braun]
#19183: Jeroen Demeyer: Some more #optional fixes [Reviewed by Travis Scrimshaw]
#19184: Nathann Cohen: HigmanSims design and graph related to it and
to Witt designs [Reviewed by Dima Pasechnik]
#19185: Nathann Cohen: Avoid a %crun crash [Reviewed by Frédéric Chapoton]
#19189: Volker Braun: update prerequisites [Reviewed by Karl-Dieter
Crisman, Jeroen Demeyer]
#19199: Clemens Heuberger: FiniteStateMachine: do not mess with color
'None' [Reviewed by Daniel Krenn]
#19201: Clemens Heuberger: FiniteStateMachine.disjoint_union: fix
doctests [Reviewed by Daniel Krenn]
#19202: Frédéric Chapoton: found a few broken links to trac tickets
and some typos [Reviewed by Jeroen Demeyer]
#19204: Clemens Heuberger: Implement Automaton.is_equivalent [Reviewed
by Daniel Krenn]
#19205: Clemens Heuberger: New automata: EmptyWord, AnyLetter, AnyWord
[Reviewed by Daniel Krenn]
#19206: Clemens Heuberger: New automaton: ContainsWord [Reviewed by
Daniel Krenn]
#19212: Andrey Novoseltsev: Relax RE to get the base package name
[Reviewed by Jeroen Demeyer]
#19216: Nathann Cohen: Suzuki-related strongly regular graphs
[Reviewed by Dima Pasechnik]
#19218: Travis Scrimshaw: Restrict skew partition input to Schur basis
and implement a skew Schur method [Reviewed by Anne Schilling, Darij
Grinberg]

Merged in sage-6.9.rc0:

#6337: Peter Bruin: Implement jordan_form over symbolic ring [Reviewed
by Clément Pernet]
#12162: Shashank Shalgar, Michael Orlitzky: simplify_full for matrix
[Reviewed by Karl-Dieter Crisman, Vincent Delecroix]
#14107: Frédéric Chapoton, Travis Scrimshaw: Expose quantum
Littlewood-Richardson coefficients from lrcalc [Reviewed by Frédéric
Chapoton]
#14164: Peter Bruin: Error in NumberField.composite_fields() [Reviewed
by Vincent Delecroix]
#15267: Daniel Krenn: automaton: iterator over words of language
[Reviewed by Clemens Heuberger]
#17435: Simon King: Cythonise path algebra elements [Reviewed by
Frédéric Chapoton]
#17715: Benjamin Hackl: AsymptoticTerm [Reviewed by Daniel Krenn,
Clemens Heuberger]
#18123: Daniel Krenn: let Transducer(word) output a word [Reviewed by
Clemens Heuberger]
#18227: Daniel Krenn: Finite state machines: some cleanup and code
rewriting [Reviewed by Clemens Heuberger]
#18305: Vincent Delecroix: Element comparison for Python classes
[Reviewed by Jeroen Demeyer]
#18594: Aram Dermenjian, Gregg Musiker: Add additional mutation
options for clusters [Reviewed by Viviane Pons, Christian Stump]
#18675: Jean-Baptiste Priez: Add 'connected' as a class for graded
Hopf algebras with basis. [Reviewed by Mike Zabrocki]
#18838: Matthias Koeppe, Yuan Zhou: GLPK backend does not detect
unboundedness in simplex-only mode [Reviewed by Dima Pasechnik, David
Coudert]
#18885: Jeroen Demeyer: ecm fail to build with "no such instruction:
vfmadd312sd" [Reviewed by Volker Braun]
#19043: Jeroen Demeyer: Move configuration part of build/make/install
to configure [Reviewed by Travis Scrimshaw]
#19118: Kimball Martin, Frédéric Chapoton: Suggested improvement to
computing Ihara zeta functions [Reviewed by Nathann Cohen, Frédéric
Chapoton]
#19178: Travis Scrimshaw: Make Coxeter3 a new-style spkg [Reviewed by
Franco Saliola, Anne Schilling]
#19187: Jeroen Demeyer: Add rules for installing packages with pip
[Reviewed by Vincent Delecroix, Volker Braun]
#19191: Nathann Cohen, Jori Mäntysalo: LatticePoset: add is_planar()
[Reviewed by Jori Mäntysalo, Nathann Cohen]
#19193: Jori Mäntysalo: is_planar() fails with an immutable graph
[Reviewed by Nathann Cohen]
#19197: Jori Mäntysalo: LatticePoset: add breadth() [Reviewed by Nathann Cohen]
#19200: Frédéric Chapoton: various typoes in doc [Reviewed by Travis Scrimshaw]
#19207: Clemens Heuberger: Automata: Add documentation illustrating
the use of automata operations [Reviewed by Daniel Krenn]
#19208: Peter Bruin, Jeroen Demeyer: Replace remaining instances of
has_coerce_map_from_[c_]impl by _coerce_map_from_ [Reviewed by Jeroen
Demeyer, Peter Bruin]
#19210: Daniel Krenn: rename automata.word to automata.Word [Reviewed
by Clemens Heuberger]
#19221: Nathann Cohen: Some new (n,2^k,1)-BIBD [Reviewed by Vincent
Delecroix, Dima Pasechnik]
#19222: Marc Mezzarobba: RIF: fix min/max when one of the arguments is
a NaN [Reviewed by Clemens Heuberger]
#19227: Jori Mäntysalo: Graphs: DFS and broken distance-parameter
[Reviewed by David Coudert]
#19233: John Palmieri, Volker Braun: ecm doesn't build with Xcode 7.0
[Reviewed by John Palmieri, Volker Braun]
#19234: Volker Braun: gsl doesn't build with Xcode 7.0 [Reviewed by
John Palmieri]
#19236: Jeroen Demeyer: Lock mirror_list file in MirrorList.__init__
[Reviewed by Volker Braun]
#19237: Clemens Heuberger: Fix ReSt errors in reference/rings
[Reviewed by Benjamin Hackl]
#19238: Thierry Monteil: Remove the "SPKG Maintainers" section in
packages and doc [Reviewed by François Bissey]
#19239: Jeroen Demeyer: Race conditions building LiE [Reviewed by
Travis Scrimshaw]
#19240: Jeroen Demeyer: Rename matrix_mod2e_dense to matrix_gf2e_dense
[Reviewed by Simon King]
#19241: Frédéric Chapoton: fixing hidden doc errors in sage/combinat
[Reviewed by Travis Scrimshaw]
#19242: Jeroen Demeyer: Improve register_unpickle_override() doc
[Reviewed by Jori Mäntysalo]
#19243: Jeroen Demeyer: Do not test SageKernelSpec.update() [Reviewed
by Travis Scrimshaw]
#19244: Simon King: Broken doctest in src/sage/categories/fields.py
[Reviewed by Jeroen Demeyer]
#19247: Nathann Cohen: Two SRG on 243 and 276 vertices [Reviewed by
Dima Pasechnik]
#19248: Jeroen Demeyer: Add declarations for gmp/mpir C++ classes
[Reviewed by Vincent Delecroix]
#19252: David Coudert: Faster GridGraph generator [Reviewed by Nathann Cohen]
#19253: David Coudert: Complete and Random Semi-Complete digraph
generators [Reviewed by Nathann Cohen]
#19255: Mike Zabrocki, Jean-Baptiste Priez: remove adams_operation
[Reviewed by Darij Grinberg, Travis Scrimshaw]
#19260: Thierry Monteil: documentation fix in tilings.py [Reviewed by
Nathann Cohen]
#19263: Jean-Baptiste Priez: Coproduct by coercion [Reviewed by Mike Zabrocki]
#19266: Jeroen Demeyer: configure: create directories using
AC_CONFIG_COMMANDS [Reviewed by Travis Scrimshaw]
#19267: Jeroen Demeyer: Update documentation about Sage packages
[Reviewed by Travis Scrimshaw]
#19277: Nathann Cohen: Cremona-Richmond configuration [Reviewed by
Frédéric Chapoton]

Merged in sage-6.9.rc1:

#19125: Nils Bruin: DeprecatedMethod wrapping is broken [Reviewed by
Vincent Delecroix]
#19294: Travis Scrimshaw: Doctest failure with coxeter3 [Reviewed by
Anne Schilling]

Merged in sage-6.9.rc2:

#19324: Jeroen Demeyer: Force reconfiguration after GCC installation
[Reviewed by John Palmieri]

Merged in sage-6.9.rc3:

#19338: Jeroen Demeyer: Doc for deprecated_function_alias() is wrong
[Reviewed by Vincent Delecroix]
#19347: Jeroen Demeyer: Source tarball should contain gcc [Reviewed by
Volker Braun]

Merged in sage-6.9:

#19374: Volker Braun, Jeroen Demeyer: LaTeX display broken in Jupyter
output cells [Reviewed by Eric Gourgoulhon, Jeroen Demeyer]
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