[sage-release] Sage 5.13 released

Tue, 17 Dec 2013 01:42:52 -0800 

Sage 5.13 was released on 15 December 2013. It is available in
source and binary form from:

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

Sage (http://www.sagemath.org/) is developed by volunteers and combines
over 90 open source packages. For instructions about installing Sage, see

  * http://www.sagemath.org/doc/installation

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

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

If you have any questions and/or problems, please report them to any of
these Google groups:

  * sage-support: http://groups.google.com/group/sage-support
  * sage-devel: http://groups.google.com/group/sage-devel

You can also drop by in #sagemath on freenode or post your questions
at http://ask.sagemath.org/

The following 94 people contributed to this release. Of those, 16 made
their first contribution to Sage:

  - Adam Towsley
  - Adriana Salerno
  - Alexander Dreyer
  - Alexandre Casamayou
  - Alex Csar
  - Aly Deines
  - Amritanshu Prasad
  - Andrew Mathas
  - Anne Schilling
  - Benjamin Hutz
  - Benjamin Jones
  - Beth Malmskog
  - Birk Eisermann
  - Brant Jones
  - Burcin Erocal
  - Christelle Vincent
  - Chris Wuthrich
  - Clemens Heuberger [first contribution]
  - Daniel Krenn
  - Darij Grinberg
  - David Coudert
  - David Loeffler
  - David Roe
  - Davis Shurbert
  - Dmitrii Pasechnik
  - Emmanuel Charpentier
  - Eric Larson
  - Ethan Van Andel
  - Eviatar Bach
  - Felix Salfelder [first contribution]
  - Florian Bouyer
  - Frédéric Chapoton
  - Fredrik Stromberg
  - Frithjof Schulze
  - Han Frederic [first contribution]
  - Isabel Vogt [first contribution]
  - Ivan Andrus
  - Jean-Philippe Labbé
  - Jean-Pierre Flori
  - Jenny Cooley
  - Jeroen Demeyer
  - Joao Alberto de Faria [first contribution]
  - Johan Sebastian Rosenkilde Nielsen
  - John Cremona
  - John Palmieri
  - Jonathan Hayase [first contribution]
  - Joris Vankerschaver
  - Julian Rueth
  - Karl-Dieter Crisman
  - Kevin Dilks
  - Kimi Tsukazaki [first contribution]
  - Lassina Dembele [first contribution]
  - Leif Leonhardy
  - Luca De Feo
  - Luis Felipe Tabera Alonso
  - Marc Mezzarobba
  - Marco Streng
  - Martin Albrecht
  - Mathias  Meulien [first contribution]
  - Matthieu Deneufchâtel [first contribution]
  - Michael Orlitzky
  - Miguel Marco
  - Mike Zabrocki
  - Mikhail Malakhaltsev [first contribution]
  - Minh Van Nguyen
  - Nathann Cohen
  - Nicolas Borie
  - Nicolas M. Thiéry
  - Nico Van Cleemput
  - Nils Bruin
  - Paul Fili [first contribution]
  - Paul Zimmermann
  - Peter Bruin
  - Punarbasu Purkayastha
  - R. Andrew Ohana
  - Robert Bradshaw
  - Robert Pollak [first contribution]
  - Samuele Anni [first contribution]
  - Sara Kropf [first contribution]
  - Sébastien Labbé
  - Simon King
  - Stefan van Zwam
  - Syed Ahmad Lavasani [first contribution]
  - Thierry Dumont
  - Thierry Monteil
  - Thomas Feulner
  - Tobias Weich
  - Tomer Bauer
  - Travis Scrimshaw
  - Ursula Whitcher
  - Vincent Delecroix
  - Volker Braun
  - Xavier Caruso
  - Zafeirakis Zafeirakopoulos

* Release manager: Jeroen Demeyer.

* We closed 186 tickets in this release. For details, see

  http://boxen.math.washington.edu/home/release/sage-5.13/tickets.html

Closed tickets:
#7767: PARI thinks C compiler is broken on Open Solaris. [Reviewed by Jeroen Demeyer] 
#9300: update french version of tutorial [Reviewed by Nathann Cohen]
#9348: Building pari with -O1 rather than -O3 [Reviewed by Peter Bruin]
#9899: PARI/GP (2.4.3-svn) self-test fails after self-tuning on Pentium 4 Prescott [Reviewed by Jeroen Demeyer] #11123: Plot connects parts of function over non-domain area [Reviewed by Karl-Dieter Crisman, Robert Pollak] #11135: Crashes when constructing algebraic numbers using Matrix.eigenvectors [Reviewed by Johan Sebastian Rosenkilde Nielsen] #11240: Update database_cremona_ellcurve spkg [Reviewed by Frédéric Chapoton] #11345: Period method for quadratic irrationals [Reviewed by Benjamin Jones, Vincent Delecroix] #11518: Make Latte Machiatto an experimental package [Reviewed by Zafeirakis Zafeirakopoulos] 
#13136: The Equivalence of Linear Codes [Reviewed by Frédéric Chapoton]
#13263: matrix() for elements in quotients of polynomial ring broken over inexact rings [Reviewed by Julian Rueth, Travis Scrimshaw] #14317: Add FFT stuff in sage/gsl to reference manual [Reviewed by Frédéric Chapoton] #14908: Two small issues with make micro_release [Reviewed by Marc Mezzarobba, Volker Braun] #15120: Fix doctest doctests in git layout. [Reviewed by Robert Bradshaw, Volker Braun] #15135: unicode box "open your browser" and cleanup of sage/server/misc.py [Reviewed by Frédéric Chapoton] #15173: Can not save graph plots to pdf file [Reviewed by Punarbasu Purkayastha] #15182: duplicate declaration of stackdummy() in sage/libs/pari/decl.pxi [Reviewed by Peter Bruin, Jeroen Demeyer] #13060: Jean-Pierre Flori: Update Valgrind spkg to version 3.8.1 [Reviewed by Volker Braun] #15261: Karl-Dieter Crisman: Fix brian optional spkg for new workflow [Reviewed by Volker Braun] #7206: doctest failure in groups/perm_gps/permgroup.py [Reviewed by Frédéric Chapoton] #11426: point3d needs to accept single vectors, not just lists of them [Reviewed by Punarbasu Purkayastha] #12863: Roots of polynomial dies with PariError: division by zero (27) [Reviewed by Peter Bruin] #13817: Add documentation about how to use Type-1 fonts in graphics [Reviewed by Punarbasu Purkayastha] #15096: corrupted documentation (global fix) [Reviewed by Paul Zimmermann, Minh Van Nguyen] #15197: Robert Bradshaw: Update patchbot to handle git repo [Reviewed by Volker Braun] #15258: The "Brian" optional spkg must be updated for the new git directory layout [Reviewed by Volker Braun] #15259: (v,4,1)-BIBD, Latin Squares and Orthogonal arrays [Reviewed by Nathann Cohen] #15314: density_plot does not handle aspect_ratio [Reviewed by Punarbasu Purkayastha] #15321: Function changes behaviour, related to polynomial rings [Reviewed by Nils Bruin] #3423: Make Pari error messages more informative [Reviewed by Jeroen Demeyer] #12403: calculating elliptic curve order gives pari error [Reviewed by Jeroen Demeyer] #12690: Signal handling doesn't properly handle OpenMP code [Reviewed by Jeroen Demeyer] #15080: Volker Braun: Build also wide version of ncurses [Reviewed by Jean-Pierre Flori] #15362: regression in simplify_full [Reviewed by Paul Zimmermann, Karl-Dieter Crisman] #7024: Flint ignores CC and CXX. [Reviewed by R. Andrew Ohana, Leif Leonhardy] #14812: p-adic root finding broken (mathematically incorrect answer) [Reviewed by Jeroen Demeyer] #15073: Nico Van Cleemput: Wrong program name in license section of SPKG.txt for the buckygen package [Reviewed by Nathann Cohen] #15370: Ivan Andrus: fix sage_mode optional spkg for git transition [Reviewed by Volker Braun] 
#15416: Robert Bradshaw: Upgrade patchbot [Reviewed by Volker Braun]
#15424: A coercion-related memory leak [Reviewed by Simon King]
#4950: Sage-3.2.3 won't build on mandriva 32-bit due to an issue with numpy [Reviewed by Jeroen Demeyer] #6793: fix doctest timeout in schemes/elliptic_curves/ell_point.py due to upgrade to Maxima 5.19.0 [Reviewed by Jeroen Demeyer] #6797: doctest failure in sage/sage/groups/perm_gps/cubegroup.py due to upgrade to Maxima 5.19.1 [Reviewed by Jeroen Demeyer] #6798: fix doctest timeout in modules/vector_double_dense.pyx [Reviewed by Jeroen Demeyer] 
#14744: Coercion problem for polyhedra [Reviewed by Volker Braun]
#15141: typo in discrete_log_rho [Reviewed by Nathann Cohen]
#15359: Segmentation fault when accessing documentation. [Reviewed by Frithjof Schulze] #15452: Fix latex representation bug in operation table [Reviewed by Luca De Feo] 
#6799: Speed up symbolic comparison [Reviewed by Jeroen Demeyer]
#14792: source deleted after package build [Reviewed by Felix Salfelder]

Merged in sage-5.13.beta0:
#6341: Florian Bouyer, Marco Streng: implement Mestre's algorithm for constructing genus 2 hyperelliptic curves [Reviewed by Lassina Dembele, Fredrik Stromberg, Aly Deines] #8388: Vincent Delecroix: pickle the paths of Rauzy diagrams [Reviewed by Frédéric Chapoton, Nathann Cohen] #11273: Ethan Van Andel: Riemann Enhancements: Docs, Exterior, Multiple Spiderweb, Error Testing [Reviewed by Burcin Erocal, Karl-Dieter Crisman] #11688: Frédéric Chapoton: graded modules : an example and new element methods [Reviewed by Travis Scrimshaw] #13615: Kimi Tsukazaki, John Cremona, Luca De Feo: Extend elliptic curve isogenies to arbitrary prime degrees [Reviewed by John Cremona, Jenny Cooley, Samuele Anni, Luca De Feo] #13838: Travis Scrimshaw: Implementation of virtual Klebers algorithm [Reviewed by Anne Schilling] #14117: Darij Grinberg: Jordan normal form not computed for nilpotent matrix over rational function field / polynomials cannot be factored over rational function field [Reviewed by Luis Felipe Tabera Alonso, Travis Scrimshaw] #14269: David Loeffler: Ray class numbers for ideals [Reviewed by Frédéric Chapoton] #14476: Chris Wuthrich: non-integral models can cause a bug in local_data for elliptic curves over number fields [Reviewed by Frédéric Chapoton, John Cremona] #14791: Davis Shurbert: Named finitely presented groups [Reviewed by Volker Braun, Travis Scrimshaw] #14875: Travis Scrimshaw: Remove CombinatorialClass from DyckWords [Reviewed by Darij Grinberg] #14880: Beth Malmskog, Adriana Salerno, Christelle Vincent, Ursula Whitcher: Compute the p-adic Gamma function [Reviewed by Volker Braun] #14888: Peter Bruin, Jeroen Demeyer: Make FiniteField_pari_ffelt the default for generic finite fields [Reviewed by Jean-Pierre Flori, Jeroen Demeyer, Peter Bruin] #14898: Matthieu Deneufchâtel: Poincaré-Birkhoff-Witt and dual bases [Reviewed by Travis Scrimshaw] #14957: David Roe, Jean-Pierre Flori, Peter Bruin: Square-free decomposition and any_root for polynomials [Reviewed by Jean-Pierre Flori, Peter Bruin] #14958: David Roe, Jean-Pierre Flori, Peter Bruin: Implement pseudo-Conway polynomials [Reviewed by Jean-Pierre Flori, Peter Bruin] #14963: John Cremona: Add functionality for S-units to UnitGroup [Reviewed by Peter Bruin] #15029: Amritanshu Prasad: Implement similarity classes over principal ideal local rings of length two [Reviewed by Travis Scrimshaw] #15071: Eviatar Bach: Make it easy to have automatic numerical evaluation of symbolic functions on inexact input [Reviewed by Benjamin Jones] #15094: Darij Grinberg: QSym: internal coproduct, Frobenius, lambda-of-monomials, documentation fixes [Reviewed by Mike Zabrocki, Travis Scrimshaw] #15122: Darij Grinberg: Compositions: ribbon decomposition and minor improvements [Reviewed by Travis Scrimshaw] #15127: Frédéric Chapoton: cleanup of matchpoly.pyx [Reviewed by Nathann Cohen] #15142: Travis Scrimshaw: Changes to RSK [Reviewed by Anne Schilling, Darij Grinberg] #15143: Travis Scrimshaw: Improvements to SetPartitions [Reviewed by Darij Grinberg, Mike Zabrocki] #15151: Travis Scrimshaw: Implement residue functions for partitions [Reviewed by Darij Grinberg] #15170: Travis Scrimshaw: Implement to_symmetric_group_algebra for all bases of DescentAlgebra [Reviewed by Darij Grinberg] #15199: David Coudert: Change behavior of blocks_and_cuts_tree on biconnected graphs [Reviewed by Nathann Cohen] #15243: Jeroen Demeyer: Change algorithm for K.uniformizer(P) [Reviewed by John Cremona] 
#15250: Jeroen Demeyer: Upgrade PARI to 2.5.5 [Reviewed by Peter Bruin]

Merged in sage-5.13.beta1:
#8335: David Roe, Jean-Pierre Flori, Peter Bruin: Finite field lattices via Conway polynomials [Reviewed by Jean-Pierre Flori, Luca De Feo] #10589: Andrew Mathas: sage -fixdoctests doesn't work correctly [Reviewed by Travis Scrimshaw] #12170: Syed Ahmad Lavasani: Genus computation (using singular) and _singular_ object for function field [Reviewed by Dmitrii Pasechnik] #13106: Frédéric Chapoton: Use of bin_op in rings_pari_ring.py [Reviewed by Peter Bruin] #13283: Birk Eisermann: Tolerance Graphs (graph generators, etc.) [Reviewed by David Coudert] 
#13726: Thomas Feulner: The semimonomial group [Reviewed by Volker Braun]
#14223: Punarbasu Purkayastha: Fix 3d plots to not ignore user prespecified aspect_ratio. [Reviewed by Tobias Weich] #14261: Brant Jones, Travis Scrimshaw, Andrew Mathas: Iwahori-Hecke algebra with several bases [Reviewed by Andrew Mathas, Brant Jones, Travis Scrimshaw] #14813: Davis Shurbert: Finitely generated abelian group presentations [Reviewed by Travis Scrimshaw] #14994: Davis Shurbert: Direct product for finitely presented groups [Reviewed by Travis Scrimshaw] #15076: Frédéric Chapoton: remove import of is_* in rings.all [Reviewed by Nathann Cohen] #15130: Stefan van Zwam: Docbuilder issue with BasisExchangeMatroid [Reviewed by Volker Braun] #15131: Darij Grinberg: QSym: the Hazewinkel Lambda basis [Reviewed by Travis Scrimshaw] #15164: Darij Grinberg: NSym (NCSF): Verschiebung, doc improvements, meet and join of compositions [Reviewed by Travis Scrimshaw] #15172: Dmitrii Pasechnik: update 4ti2 to version 1.6 [Reviewed by Volker Braun] #15212: Matthieu Deneufchâtel: Dual PBW basis for the shuffle algebra [Reviewed by Travis Scrimshaw] #15233: Tomer Bauer: Implement q-multinomial and combinat/q_analogues.py cleanup [Reviewed by Travis Scrimshaw] #15245: Darij Grinberg: Pfaffian of a skew-symmetric matrix [Reviewed by Travis Scrimshaw] #15257: Anne Schilling, Mike Zabrocki: Update of doctests for book on k-Schur functions [Reviewed by Anne Schilling, Mike Zabrocki] #15269: Darij Grinberg: Speeding up tableau's cells_containing and weight methods [Reviewed by Travis Scrimshaw] #15270: Volker Braun: ATLAS build failure on Solaris [Reviewed by Jean-Pierre Flori] #15277: Travis Scrimshaw: CartanMatrix to DynkinDiagram adds edges with zeros [Reviewed by Nicolas M. Thiéry, Frédéric Chapoton] #15279: Darij Grinberg: RootSystem __init__ builds the dual twice, breaking initialization of non-crystallographic root systems [Reviewed by Travis Scrimshaw] #15281: Punarbasu Purkayastha: allow LinearCode.weight_enumerator to take the variable names separately [Reviewed by Stefan van Zwam] 

Merged in sage-5.13.beta2:
#864: Peter Bruin: Asymptotically slow PARI --> Python long conversions [Reviewed by Jeroen Demeyer] #9290: Travis Scrimshaw: Implement Coxeter groups in their geometric representation [Reviewed by Frédéric Chapoton] 
#10358: Thierry Monteil: New interface with OEIS [Reviewed by Nathann Cohen]
#11409: Jeroen Demeyer: Remove old notebook files [Reviewed by Frédéric Chapoton, Punarbasu Purkayastha] #13214: Xavier Caruso, Peter Bruin: Finite field homomorphisms and Frobenius endomorphisms [Reviewed by Paul Zimmermann, Peter Bruin, Volker Braun] #13240: Alex Csar, Kevin Dilks, Frédéric Chapoton: Give posets polynomials (order, characteristic, zeta, etc.) [Reviewed by Darij Grinberg, Nathann Cohen] #13413: Jeroen Demeyer: Correct bug in symmetric functions caused by Symmetrica using integers longer than 32 bits [Reviewed by Mike Zabrocki] #14029: Jeroen Demeyer: Exit Sage ungracefully upon SIGQUIT [Reviewed by Peter Bruin] #14218: Benjamin Hutz: height and canonical height for projective points and morphisms [Reviewed by Joao Alberto de Faria, Adam Towsley] #14339: Mathias Meulien, Paul Zimmermann: More doctests from the book "Calcul mathématique avec Sage"--Chap. "nonlinear" [Reviewed by Frédéric Chapoton] #14340: Marc Mezzarobba, Nicolas M. Thiéry, Paul Zimmermann: More doctests from the book "Calcul mathématique avec Sage"--Chap. "domaines" [Reviewed by Frédéric Chapoton] #14710: Jean-Pierre Flori: Update boehm_gc to 7.2d [Reviewed by Dmitrii Pasechnik, Jeroen Demeyer] #14915: Punarbasu Purkayastha: Add _sympy_ method to real_mpfr.pyx [Reviewed by Jeroen Demeyer] #15028: Davis Shurbert: More named finitely presented groups [Reviewed by Travis Scrimshaw] #15121: Frédéric Chapoton: a quick way to create trees [Reviewed by Travis Scrimshaw] #15195: Travis Scrimshaw: Family cardinality does not catch enough errors [Reviewed by Nathann Cohen] #15237: Travis Scrimshaw: Crystals using tableaux are not created if dot2tex installed but graphviz is not [Reviewed by Frédéric Chapoton] #15244: Jeroen Demeyer: sage -t outputs duplicate lines [Reviewed by David Roe] #15255: David Coudert: Assign correct name to GridGraph [Reviewed by Frédéric Chapoton] #15283: Darij Grinberg: Rowmotion and Panyushev orbits: iterators for orbits and better doc [Reviewed by Nathann Cohen] #15309: Travis Scrimshaw: Symmetric group algebra creating algebra generators using _element_constructor_ [Reviewed by Darij Grinberg] #15312: Mike Zabrocki: Fix use of freed memory in Symmetrica [Reviewed by Jeroen Demeyer] #15324: Stefan van Zwam: Docbuilder issue with LinearMatroid [Reviewed by Jeroen Demeyer] 

Merged in sage-5.13.beta3:
#9640: Peter Bruin, Jeroen Demeyer: Change PARI error catching mechanism [Reviewed by Jeroen Demeyer, Peter Bruin] #10983: Alexandre Casamayou, Marc Mezzarobba, Paul Zimmermann: new doctest for french book about Sage [Reviewed by Dmitrii Pasechnik] #12083: Jean-Philippe Labbé: Add a TikZ-tex output method for 2d and 3d polytopes [Reviewed by Sébastien Labbé, Volker Braun] #13311: Jeroen Demeyer: alarm() doesn't work for Cython code [Reviewed by Peter Bruin] #13394: Simon King, Nils Bruin: Write a WeakValueDictionary with safer key removal [Reviewed by Nils Bruin, Simon King] 
#13429: Han Frederic: eval_line in giac interface [Reviewed by Volker Braun]
#14296: Jeroen Demeyer: Force consistency of $LD and $AS with $CC [Reviewed by Leif Leonhardy, Jean-Pierre Flori] #14320: Thierry Dumont, Paul Zimmermann: More doctests from the book "Calcul mathématique avec Sage" [Reviewed by Frédéric Chapoton] #14998: Davis Shurbert: Semidirect product for finitely presented groups [Reviewed by Travis Scrimshaw] #15027: John Cremona, Jeroen Demeyer: Inconsistent primitive_root_of_unity for number fields [Reviewed by Peter Bruin] #15083: Paul Zimmermann: More doctests from the book "Calcul mathématique avec Sage"--Chap. "linalg" [Reviewed by Frédéric Chapoton] #15098: Frédéric Chapoton: remove import of is_* in matrix.all [Reviewed by Darij Grinberg] 
#15144: Isabel Vogt: Binary recurrence sequences [Reviewed by Eric Larson]
#15210: Nicolas M. Thiéry: Fix latex for operation tables [Reviewed by Jeroen Demeyer] #15268: Jean-Pierre Flori: ncurses fails to build on Solaris/SPARC [Reviewed by Volker Braun] #15305: Travis Scrimshaw, Nicolas Borie: Allow natural morphism between tensor products [Reviewed by Nicolas Borie, Travis Scrimshaw] #15322: Darij Grinberg: Testing for antichains and chains in arbitrary posets [Reviewed by Nathann Cohen] #15327: Darij Grinberg: More minor tableau and skew_tableau optimizations, and moving out attacking_pairs [Reviewed by Travis Scrimshaw] #15337: Jeroen Demeyer: Speed up ulp() method of real_mpfr.pyx [Reviewed by Paul Zimmermann] 
#15347: Jeroen Demeyer: Delete yamanouchi.py [Reviewed by Travis Scrimshaw]
#15363: Jeroen Demeyer: MPIR large numbers give a segmentation fault [Reviewed by Paul Zimmermann] #15373: Paul Fili: Implement global_height for Integers [Reviewed by Adam Towsley] #15377: Benjamin Hutz: improve documentation for projective normalize_coordinates [Reviewed by Travis Scrimshaw] #15388: Paul Fili, Adam Towsley: log of NaN in RealField and ComplexField results in infinite loop [Reviewed by Benjamin Hutz] #15397: Mike Zabrocki: Bug in product of Schur symmetric functions [Reviewed by Anne Schilling] 

Merged in sage-5.13.beta4:
#10018: Jeroen Demeyer: Improve PARI's stack allocation [Reviewed by Peter Bruin] #13951: Peter Bruin, John Cremona: (non)archimedian_local_height broken for rational points on elliptic curves over Q [Reviewed by John Cremona, Peter Bruin] #14219: Benjamin Hutz: rational preperiodic points for projective morphisms [Reviewed by Vincent Delecroix, Adam Towsley] #14706: Emmanuel Charpentier, Jean-Pierre Flori: Upgrade R to version 3.0.2 [Reviewed by Leif Leonhardy, Karl-Dieter Crisman, Jeroen Demeyer, John Palmieri] #15169: Travis Scrimshaw: Bug in FreeAlgebra coercion with fields [Reviewed by Darij Grinberg] #15299: Jeroen Demeyer: Incorrect results for analytic Sha due to low precision [Reviewed by Peter Bruin] #15311: Travis Scrimshaw: Implement the classical Hall algebra and polynomials [Reviewed by Darij Grinberg] #15350: Darij Grinberg: Partitions, skew partitions and Sym: odds and ends [Reviewed by Travis Scrimshaw] #15376: Paul Fili: Projective Point global_height remove special case for ZZ [Reviewed by Adam Towsley] #15402: Jeroen Demeyer: PARI: add patch for exponential_integral_1() precision [Reviewed by Peter Bruin] #15434: John Cremona: elliptic curve isogenies: follow-up to #13615 [Reviewed by Volker Braun] 

Merged in sage-5.13.beta5:
#8793: Frédéric Chapoton: clean up documentation of logic/boolformula.py [Reviewed by Volker Braun, Nathann Cohen] #9411: Aly Deines, John Cremona: Given points on an elliptic curve, this finds a LLL reduced ZZ-independent set [Reviewed by John Cremona, Paul Zimmermann, Frédéric Chapoton] #10132: Mikhail Malakhaltsev, Joris Vankerschaver: Parametrization of (metric) surfaces in 3D euclidean space [Reviewed by Vincent Delecroix] #11628: Peter Bruin: GF() arithmetic slower than IntegerModRing() [Reviewed by Jeroen Demeyer] #11868: Peter Bruin: PARI library interface broken by design [Reviewed by Jeroen Demeyer] #13848: Martin Albrecht: mq.SR: use deglex and polybori (if GF(2)) by default [Reviewed by Alexander Dreyer] #13849: Martin Albrecht: deprecate degrevlex when using PolyBoRi [Reviewed by Alexander Dreyer] #14410: Jean-Pierre Flori: Let ATLAS build shared libraries on Cygwin [Reviewed by Volker Braun, Jeroen Demeyer] #15078: Clemens Heuberger, Daniel Krenn, Sara Kropf: new module: finite state machines, automata, transducers [Reviewed by Volker Braun, Frédéric Chapoton, Vincent Delecroix, Darij Grinberg, Sébastien Labbé] 
#15079: Daniel Krenn: unique_round for RIF [Reviewed by Jeroen Demeyer]
#15174: Darij Grinberg: Permutations and symmetric group algebra: Stopgap for #14885 and noninversions [Reviewed by Travis Scrimshaw] #15385: Frédéric Chapoton: cleanup of sage/combinat/matrices/hadamard [Reviewed by Nathann Cohen] #15453: Jeroen Demeyer: Wrap IML calls in sig_on() [Reviewed by Martin Albrecht] 

Merged in sage-5.13.rc0:
#10093: Minh Van Nguyen, Jeroen Demeyer: clean up documentation of sage/misc/bitset.pyx [Reviewed by Nathann Cohen, David Coudert] #11934: Michael Orlitzky: Symbolic simplification error [Reviewed by Jeroen Demeyer] #13352: David Coudert, Jeroen Demeyer: Running time improvement of the bitset_len method [Reviewed by David Coudert] #15007: Jonathan Hayase: adding diff() and differentiate() aliases to polynomial rings for consistency [Reviewed by Jeroen Demeyer] #15150: Travis Scrimshaw: Implement NCSym [Reviewed by Mike Zabrocki, Darij Grinberg] #15301: Minh Van Nguyen: fix a link to PDF version of PREP tutorials [Reviewed by Jeroen Demeyer] #15392: Benjamin Hutz: Implement minimal model algorithm [Reviewed by Nils Bruin] #15422: Jeroen Demeyer: factorization of non-squarefree polynomials over the p-adics [Reviewed by Robert Bradshaw, David Roe] 
#15433: R. Andrew Ohana: Port to OSX 10.9 [Reviewed by Volker Braun]
#15488: Jeroen Demeyer: Fix misplaced sig_on() inside try [Reviewed by Volker Braun] #15505: Miguel Marco: Braid Group construction misses some relations [Reviewed by Travis Scrimshaw] 

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