Sage 4.4 was released on 2010/04/25. It is available (or will be soon) at
http://www.sagemath.org/download.html
* About Sage (http://www.sagemath.org)
Sage is developed by volunteers and combines over 90 open source packages.
It is available for download from www.sagemath.org and its mirrors in
source or binary form. If you have any questions and/or problems,
please report them to the Google groups sage-devel or sage-support.
You can also drop by in #sage-devel on freenode.
The following 63 people contributed to this release. Of those, 3 made
their first contribution to Sage:
* Alec Mihailovs [first contribution]
* Alex Ghitza
* Alexandre Blondin Massé
* Andrey Novoseltsev
* Anne Schilling
* Brant Jones
* Burcin Erocal
* Carl Witty
* Charlie Turner
* Chris Wuthrich
* Craig Citro
* Dan Bump
* Dan Drake
* Daniel Bump
* David Ackerman [first contribution]
* David Joyner
* David Kirkby
* David Loeffler
* David Roe
* Dmitrii Pasechnik
* Flavia Stan [first contribution]
* Florent Hivert
* Golam Mortuza Hossain
* Gonzalo Tornaria
* Harald Schilly
* Håkan Granath
* Jason Bandlow
* Jason Grout
* John Cremona
* John Palmieri
* Karl-Dieter Crisman
* Kwankyu Lee
* Lloyd Kilford
* Marc Mezzarobba
* Marshall Hampton
* Martin Albrecht
* Martin Raum
* Mike Hansen
* Minh Van Nguyen
* Mitesh Patel
* Nathann Cohen
* Nicolas Borie
* Nicolas M. Thiéry
* Nils Bruin
* Paul Zimmermann
* Rob Beezer
* Robert Bradshaw
* Robert Mařík
* Robert Miller
* Ross Kyprianou
* Ryan Hinton
* Samuele Giraudo
* Simon King
* Sébastien Labbé
* Tim Dumol
* Tom Boothby
* Valentin Feray
* Vincent Delecroix
* Volker Braun
* William Stein
* Yann Laigle-Chapuy
* Release manager
* John Palmieri
* Major features, new spkg's, and bug fixes
* created a units module (#3852)
* closed 14 combinatorics tickets
* closed 10 graph theory tickets
* closed 11 modular forms tickets
* started creating a library of interacts (#8488)
* progress toward binary interface with Maxima (#6781)
* various Solaris fixes (#7990, #8509, #8514, #8520, #8523, #8730, #8750)
* re-implemented Hidden Markov Models from scratch (#8547)
* Bug statistics
We closed 132 tickets. For details see
http://trac.sagemath.org/sage_trac/milestone/sage-4.4
or check out the closed ticket section at the end of the announcement.
* Upcoming release
Sage 5.0?
* Doctesting coverage
For Sage 4.3.5, we had an overall weighted doctest coverage score of
81.5%, with 25122 functions. In Sage 4.4, we increased the doctest
coverage by 0.2% and added 276 new functions. Thus for Sage 4.4 we
now have
* Overall weighted coverage score: 81.7%
* Total number of functions: 25406
* Known issues
#8749: BSD: doctest failures on solaris (t2): doctest failures,
Solaris only, probably due to a combination of a timeout and some
buggy code related to the Birch and Swinnerton-Dyer conjecture.
#8756: random segfault in planarity.pyx test: occasional doctest
failures due to segfaults on some 32-bit linux boxes.
Closed tickets:
#5134: Polyhedron: conversion from V-form to H-form fails if no extreme point is given
#6020: bug in delta_qexp over finite fields
#6917: Minkowsky sum should work with polyhedra and not only with polytopes
#7990: A new build failure on Solaris 10 SPARC.
#8171: Nathann Cohen: New Cbc spkg with Cplex support [Reviewed by Dmitrii Pasechnik]
#8298: Nathann Cohen: GLPK 4.42 + error message [Reviewed by Dmitrii Pasechnik]
#8514: Dmitrii Pasechnik: Optional database_gap-4.4.12 fails to install on Solaris 10 SPARC [Reviewed by David Joyner, David Kirkby]
#8520: Dima Pasechnik: Optional package gap_packages-4.4.12_2 fails to install on Solaris 10 SPARC [Reviewed by David Kirkby]
#8523: Simon King: Optional package p_group_cohomology-1.2 fails to install on Solaris 10 SPARC, as well as Debian Linux x86/x86_64 and MacOSX 10.5 (PPC) [Reviewed by Dima Pasechnik]
#8548: Samuele Giraudo: Permutation : a bad error message in hyperoctahedral_double_coset_type
Merged in sagenb:
(nothing)
Merged in sage-4.4.alpha0:
#261: Mike Hansen: a new matrix constructor: add lambda support [Reviewed by Alec Mihailovs]
#598: Mike Hansen: implement substitute for monoids [Reviewed by Paul Zimmermann]
#3852: David Ackerman, William Stein: create or adapt or include a units package [Reviewed by Dan Drake]
#3863: Golam Mortuza Hossain, Burcin Erocal: Have numerical evaluation of unevaluated integrals call numerical integral [Reviewed by Dan Drake]
#4509: Jason Grout: doctests for planarity code [Reviewed by Tom Boothby, Minh Van Nguyen]
#4756: Rob Beezer: eigenmatrix_right totally broken [Reviewed by Alex Ghitza]
#5165: Alex Ghitza: make padded_list use prec by default [Reviewed by David Loeffler]
#6214: Volker Braun: Polyhedra compute incorrect dimension when defined through inequalities [Reviewed by Marshall Hampton]
#6390: John Cremona: Implement elliptic logarithms (complex case) [Reviewed by Chris Wuthrich]
#6671: Martin Raum: Speed of Victor Miller basis [Reviewed by David Loeffler]
#6781: Nils Bruin: Library access to ecl [Reviewed by Burcin Erocal, Karl-Dieter Crisman, Nils Bruin]
#6836: Lloyd Kilford, Alex Ghitza: The Sturm bound for modular forms gives the wrong result sometimes [Reviewed by David Loeffler]
#6955: John Cremona: update simon denis pari-scripts [Reviewed by Chris Wuthrich]
#7288: Nathann Cohen: Gomory-Hu Trees [Reviewed by Alexandre Blondin Massé]
#7311: Nathann Cohen: Improve the add_constraint method from MixedIntegerLinearProgram [Reviewed by Alexandre Blondin Massé]
#7538: Florent Hivert, Nicolas Borie: equality of posets is broken ! [Reviewed by Andrey Novoseltsev]
#7549: Mitesh Patel: Reference manual: class hierarchy, inherited members, underscore variables [Reviewed by John Palmieri]
#7555: Rob Beezer, Nicolas M. Thiéry: Fix Cayley tables, add operation tables [Reviewed by Nicolas M. Thiéry, Jason Grout]
#7569: Nathann Cohen: random_vertex and random_edge functions [Reviewed by Alexandre Blondin Massé]
#7661: Burcin Erocal: maxima interface gives precedence to function dictionary instead of local variables [Reviewed by Robert Mařík]
#7748: Flavia Stan, Burcin Erocal: Make incomplete gamma function symbolic [Reviewed by Paul Zimmermann]
#7805: Nathann Cohen: MixedIntegerLinearProgram.show should use the constraints' names [Reviewed by David Joyner]
#7880: David Roe: Category of sets with partial maps. [Reviewed by Robert Bradshaw, David Loeffler]
#7914: Jason Bandlow: Implementation of triangular morphisms for modules with basis [Reviewed by Nicolas M. Thiéry]
#8018: Rob Beezer: Eigenvalues sorted, but not eigenvectors, in modular/modform/numerical.py [Reviewed by Alex Ghitza]
#8071: Rob Beezer: Trivial kernel of a matrix over non-fields are broken [Reviewed by Martin Albrecht]
#8133: Chris Wuthrich: changing the string representation of Dirichlet characters [Reviewed by John Cremona]
#8218: David Roe: Finite Field move [Reviewed by David Loeffler]
#8242: Marc Mezzarobba: Fix duplicate citation warnings when building the French-language tutorial [Reviewed by Paul Zimmermann, Minh Van Nguyen]
#8281: Alex Ghitza: bug in hecke_operator_on_basis over finite fields [Reviewed by David Loeffler]
#8297: Burcin Erocal: extra parenthesis when typesetting QQ arguments to symbolic functions [Reviewed by Håkan Granath]
#8300: Robert Bradshaw: native algdep with proof option [Reviewed by John Cremona]
#8313: Florent Hivert: Misplaced "`" in linear code construction documentation [Reviewed by Minh Van Nguyen]
#8329: Ryan Hinton: Missing copy() method in BipartiteGraph [Reviewed by Robert Miller]
#8330: Ryan Hinton: BipartiteGraph needs to override methods to add and delete vertices and edges [Reviewed by Nathann Cohen]
#8332: David Roe: Changes FiniteField_givaro to Python [Reviewed by David Loeffler, John Cremona]
#8344: Dmitrii Pasechnik: Factor constant polynomials over QQbar [Reviewed by Paul Zimmermann, John Cremona]
#8366: Jason Grout: make contour plot labels and linestyles work when fill=True [Reviewed by Robert Mařík]
#8390: Robert Mařík: Find all roots of a trigonometric equation [Reviewed by William Stein]
#8404: Nathann Cohen: Computing a H-minor [Reviewed by Dmitrii Pasechnik]
#8417: Yann Laigle-Chapuy: improve CubeGraph and HyperStarGraph generation [Reviewed by Robert Miller]
#8420: Valentin Feray: new feature : class of perfect matching [Reviewed by Florent Hivert]
#8421: Ryan Hinton: Change BipartiteGraph .left and .right to sets [Reviewed by Robert Miller]
#8424: Jason Grout: bounding box calculation doesn't handle NaN or infinity [Reviewed by Robert Mařík]
#8428: Charlie Turner: Problem with rational_points over plane curves AND addition of rational_points_iterator function [Reviewed by David Roe]
#8429: Sébastien Labbé: Split word.py file into 4 files [Reviewed by Alexandre Blondin Massé]
#8438: Florent Hivert: Construction of a skew partition from its row and column lengths [Reviewed by Nicolas Borie]
#8444: Gonzalo Tornaria: Memleak in conversion for univariate polynomial rings [Reviewed by Paul Zimmermann]
#8476: Martin Albrecht: return the correct class instance in MPolynomialSystem.__copy__ [Reviewed by Yann Laigle-Chapuy]
#8481: John Palmieri: lift doesn't work for vector space homomorphisms [Reviewed by William Stein]
#8484: Robert Miller: incremental improvements to prove_BSD [Reviewed by John Cremona]
#8486: Kwankyu Lee: Xelatex and Sage notebook [Reviewed by Dan Drake, John Palmieri]
#8487: Robert Mařík: Use use_grobner in to_poly_solve [Reviewed by Alex Ghitza]
#8502: John Cremona: evaluating multivariate polynomials yields non-constant [Reviewed by Alex Ghitza]
#8504: Robert Bradshaw: AbelianGroup.exponent() uses GAP (slow) [Reviewed by Mike Hansen]
#8506: Robert Bradshaw: Inefficient hash for homsets [Reviewed by John Cremona]
#8509: David Kirkby, John Palmieri: Ilegal 'grep -o' causes problems installing optional packages on Solaris [Reviewed by Dmitrii Pasechnik]
#8513: Alexandre Blondin Massé, Nathann Cohen: Including documentation in the reference manual for some files related to graph theory [Reviewed by Minh Van Nguyen, John Palmieri]
#8519: Nicolas Borie: Add a factory of finite/infinite enumerated set (with categories) defines by Range(begin, end, step) [Reviewed by Florent Hivert]
#8536: John Cremona: Change SAGE" to "Sage" in output [Reviewed by Dan Drake]
#8541: David Loeffler: Cyclotomic matrix multiplication bug [Reviewed by William Stein]
#8543: Florent Hivert: EmptySet is Back ! TestSuite should allows for empty sets. [Reviewed by Nicolas Borie, Nicolas M. Thiéry]
#8547: William Stein: implement hidden markov models in Cython from scratch (so can remove the GHMM standard package from Sage) [Reviewed by Marshall Hampton, Tom Boothby, Jason Grout]
#8560: Kwankyu Lee: magma interface should be changed to use sage-native-execute [Reviewed by William Stein]
#8572: Florent Hivert: Doc of poset appear as void if called from the console. [Reviewed by John Palmieri]
#8576: Nicolas M. Thiéry: Categories for QQ, CC, RR and friends [Reviewed by John Cremona]
#8579: Nicolas M. Thiéry: Add the categories of magmas and additive magmas [Reviewed by Robert Beezer, Florent Hivert]
#8580: Martin Albrecht: bug in matrix_mod2_dense (m4ri wrapper?): exhibited by bug in coercing into a 0-dimensional quotient vector space [Reviewed by William Stein]
#8584: David Loeffler: implement latex'ing of Dirichlet characters [Reviewed by Chris Wuthrich]
#8595: Sébastien Labbé: Fixed point of word morphism is broken on some tuple input [Reviewed by Vincent Delecroix]
#8599: Sébastien Labbé: Allow size as an argument for point2d [Reviewed by Jason Grout]
#8600: Harald Schilly, Yann Laigle-Chapuy: fibonacci tree [Reviewed by Robert Miller]
#8602: Gonzalo Tornaria: Implement theta series of degree 2 [Reviewed by Alex Ghitza]
#8609: Andrey Novoseltsev: Switch AmbientSpace and Scheme to Parent [Reviewed by John Cremona]
#8610: William Stein: fix caching bug in modular/modsym/element.pyx (very easy to review!) [Reviewed by Alex Ghitza]
#8618: Sébastien Labbé: Fix is_identity of WordMorphism to handle non standard alphabet [Reviewed by Vincent Delecroix]
#8620: David Loeffler: Rogue minus sign in sage.modular.modsym.ambient.diamond_bracket_operator [Reviewed by William Stein]
#8630: David Loeffler: Cusp forms constructor ignores the character and returns enormous space [Reviewed by William Stein]
#8633: John Palmieri: remove more instances of 'texttt' from jsmath output [Reviewed by Andrey Novoseltsev]
#8635: Paul Zimmermann: Typos in DisjointUnionEnumeratedSets. [Reviewed by Florent Hivert]
#8636: William Stein: iconv -- put the "do not build check" in the right place [Reviewed by John Palmieri]
#8638: John Palmieri: iconv -- make with SAGE_CHECK="yes" fails on iconv with x86_64 ubuntu [Reviewed by Dan Drake, William Stein]
#8639: Nathann Cohen: Bug when defining a MIPVariable's type [Reviewed by David Joyner]
#8647: William Stein: bump maxima artificially so upgrades aren't *all* broken [Reviewed by Robert Mařík]
#8650: Marshall Hampton: Extreme faces of Polyhedra are inconsistent [Reviewed by Andrey Novoseltsev]
#8666: Craig Citro, Robert Bradshaw: Bug in cyclotomic linear algebra [Reviewed by Robert Bradshaw]
#8676: Minh Van Nguyen: document breadth-first and depth-first search methods of C graph [Reviewed by Nathann Cohen]
#8679: John Palmieri: conventions for spkg names, rewriting sage-spkg [Reviewed by William Stein, Dan Drake]
#8683: John Palmieri, Minh Van Nguyen: add randstate to the reference manual [Reviewed by Minh Van Nguyen, John Palmieri]
Merged in sage-4.4.alpha1:
#6927: boothby: Extend CachedFunction to handle disk-cache [Reviewed by Tim Dumol, Mitesh Patel]
#8414: Daniel Bump: lattice -> domain in weyl_groups.py [Reviewed by Nicolas M. Thiéry]
#8488: William Stein, Jason Grout: Add support for @interact to the Sage library and module for a library of interacts [Reviewed by Jason Grout, William Stein, John Palmieri]
#8493: David Loeffler: Complex conjugation in Galois groups [Reviewed by John Cremona]
#8496: Robert Bradshaw, Chris Wuthrich: Implement canonical heights for elliptic curves over number fields [Reviewed by Chris Wuthrich, John Cremona]
#8505: Robert Bradshaw, John Cremona: random points on elliptic curve misses half the group [Reviewed by John Cremona, Robert Bradshaw]
#8524: Florent Hivert: DisjointUnionEnumeratedSets should have a private __classcall__ method [Reviewed by Nicolas M. Thiéry]
#8557: Charlie Turner: is_singular method for projective plane curves [Reviewed by Alex Ghitza]
#8574: Sébastien Labbé: Length of a finite word defined by an iterator is broken [Reviewed by Alexandre Blondin Massé]
#8585: Florent Hivert: PermutationGroup and SymmetricGroup on the empty set [Reviewed by Nicolas Borie]
#8649: Anne Schilling: to_tableau method broken for crystals of type B [Reviewed by Dan Bump]
#8653: Rob Beezer: Command-line "advanced" help has wrong option name for randomized tests [Reviewed by Tim Dumol]
#8669: John Palmieri: interrupting download in sage-spkg should delete the spkg file [Reviewed by Tim Dumol]
#8695: Florent Hivert: UniqueRepresentations implements __eq__ but not __ne__ [Reviewed by Nicolas Borie]
#8705: Florent Hivert: Add sage_unittest to the reference manual [Reviewed by Nicolas M. Thiéry]
#8706: William Stein: sage-4.4.alpha0: numerical noise in chmm.pyx [Reviewed by John Cremona]
#8707: Nicolas M. Thiéry: view(x) calls x._latex_() 5 times! [Reviewed by Andrey Novoseltsev]
#8709: Marshall Hampton: polyhedra level set doctest failure [Reviewed by Andrey Novoseltsev]
#8711: John Palmieri: fix warnings when building the ref manual (4.4.alpha0) [Reviewed by Minh Van Nguyen]
Merged in sage-4.4.rc0:
#6245: Jason Grout, Carl Witty, Florent Hivert: make a custom infix operator decorator [Reviewed by Ross Kyprianou]
#8043: John Palmieri: #7544 breaks #7355: "sage -i foo" does not automatically find the version number [Reviewed by Dan Drake]
#8368: Jason Grout: add colorbar option to contour_plots [Reviewed by Robert Mařík]
#8411: Daniel Bump: Branching rule fix and doc revision [Reviewed by Nicolas M. Thiéry, Brant Jones]
#8446: Robert Miller: avoid 0^0 in number fields [Reviewed by David Loeffler]
#8477: Mitesh Patel: Force GNU make to build PALP serially [Reviewed by David Kirkby]
#8605: Dan Drake: upgrade SageTeX spkg to 2.2.5 [Reviewed by Jason Grout]
#8607: Jason Grout: add deprecation option to the plot option rename decorator [Reviewed by Sébastien Labbé]
#8713: Nicolas M. Thiéry: Prepare the ground for moving Parent._an_element_ to Sets().ParentMethods [Reviewed by Florent Hivert]
#8722: David Loeffler: S-units sometimes broken and sometimes just plain wrong for relative fields [Reviewed by John Cremona]
#8730: vbraun: cddlib makefile looks for gmp in /usr/local, should be $SAGE_LOCAL [Reviewed by Dmitrii Pasechnik, David Kirkby, John Palmieri]
#8732: William Stein: bug in new HMM code [Reviewed by Marshall Hampton]
#8737: John Palmieri: compile plot3d/base.pyx and index_face_set with "-std=c99" [Reviewed by William Stein]
#8750: John Palmieri: numerical noise on solaris [Reviewed by David Kirkby]