-*- coding: utf-8 -*- Hi folks, Sage 4.3.4 was released on March 19, 2010. It is available 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 55 people contributed to this release. Of those, 4 made their first contribution to Sage: * Adam Webb * Alex Ghitza * Alexandre Blondin Massé * Andrey Novoseltsev * Anne Schilling * Bill Cauchois * Burcin Erocal * Chris Wuthrich * Craig Citro * Dan Drake * Daniel Bump * David Joyner * David Kirkby * David Roe * Florent Hivert * Francis Clarke * Franco Saliola * François Maltey [first contribution] * Fredrik Johansson * Gonzalo Tornaria * Harald Schilly * Ivan Andrus * Jaap Spies * Jason Bandlow * Jason Grout * Jennifer Balakrishnan * John Cremona * John Palmieri * Julien Leroy [first contribution] * Karl-Dieter Crisman * Kiran Kedlaya * Marc Mezzarobba * Marshall Hampton * Martin Raum * Mike Hansen * Minh Van Nguyen * Mitesh Patel * Nathann Cohen * Nicolas Borie * Nicolas M. Thiéry * Oscar Gerardo Lazo Arjona [first contribution] * Paul Zimmermann * Rob Beezer * Robert Bradshaw * Robert Mařík * Robert Miller * Ross Kyprianou * Ryan Hinton * Samuele Giraudo [first contribution] * Sebastian Pancratz * Sébastien Labbé * Tim Dumol * Willem Jan Palenstijn * William Stein * Yann Laigle-Chapuy * Release managers * Mike Hansen * Minh Van Nguyen * Major features, new spkg's, and bug fixes * Merged 16 tickets enhancing the combinatorics module. A big thank you to the Sage-Combinat team for their hard work before and during Sage Days 20 to get those tickets merged. * Sage now builds on SPARC Solaris 10, in particular on the machine t2.math.washington.edu. A big thank you to David Kirkby for his consistent hard work to get Sage to build on that machine. Please also thank Jaap Spies and John Palmieri for their work on getting Sage to build on t2.math. * New spkg: iconv-1.13.1 * Removed spkg: pyprocessing-0.52.p0 * Upgraded spkg's: ecl-10.2.1, mpfr-2.4.2, mpmath-0.14, sagenb-0.7.5.3, sqlalchemy-0.5.8, sqlite-3.6.22, twisted-9.0.p2 * Updated spkg's: atlas-3.8.3.p12, cddlib-094f.p5, eclib-20080310.p10, flint-1.5.0.p4, python-2.6.4.p7, r-2.10.1.p0, sagetex-2.2.3.p0, scipy-0.7.p4, zn_poly-0.9.p3 * Bug statistics We closed 120 tickets. For details see http://trac.sagemath.org/sage_trac/milestone/sage-4.3.4 or check out the closed ticket section at the end of the announcement. * Upcoming release The upcoming major release is Sage 5.0, scheduled to be released in early June 2010. The goals for Sage 5.0 include: * Resolve the high-impact tickets at http://trac.sagemath.org/sage_trac/wiki/stab1 * Raise the doctest coverage score to 90% by removing the notebook from the score and writing about 1500 docstrings * Official 32-bit Solaris 10 support on SPARC (automatic build, all tests pass) * Official Cygwin support (automatic build, all tests pass) * Doctesting coverage To my dismay, this release of Sage actually has a decrease in doctest coverage. For Sage 4.3.3, we had an overall weighted doctest coverage score of 81.6%, with 24,808 functions. In Sage 4.3.4, we decreased the doctest coverage by 0.1% and added 314 new functions. Thus for Sage 4.3.4 we now have * Overall weighted coverage score: 81.5% * Total number of functions: 25,122 * Known issues * Kiran Kedlaya reported that Sage can fail to compile on 64-bit Fedora 10. This build problem occurs after we added the new iconv spkg. Closed tickets: #3211: make echelon_form work over fraction fields (and hermite_form =old echelon_form) #4574: add notebook_object.py docs to the reference manual, and possibly a short survey about that to notebook help (top letter) #6932: jordan_form with transformation=true fails on a 1x1 matrix #7932: _Complex_I undeclared - a new bug totally stops a Solaris 10 build. #8352: Jaap Spies: twisted-8.2.0.p1 fails to build in Open Solaris x64 as 64 bit even if SAGE64=yes [Reviewed by David Kirkby] #8463: Test failure of sage/homology/delta_complex.py Merged in sagenb: #8141: Mitesh Patel: Update font stacks, sans-serif and monospace, for SageNB pages [Reviewed by Marshall Hampton; merged in sagenb-0.7.5.2] #8221: Mitesh Patel: blank space at bottom of worksheet missing [Reviewed by Adam Webb; merged in sagenb-0.7.5.3] #8225: Mitesh Patel: %time now hugely broken in sagenb-0.7.4 (sage-4.3.2) [Reviewed by William Stein; merged in sagenb-0.7.5.3] #8265: Mitesh Patel: LaTeX-friendly Unicode characters in underscored methods' docstrings [Reviewed by John Palmieri; merged in sagenb-0.7.5.2] #8324: Mitesh Patel, John Palmieri: Reconcile sage.misc.sageinspect and sagenb.misc.sageinspect [Reviewed by John Palmieri, Mitesh Patel; merged in sagenb-0.7.5.2] #8387: Mitesh Patel: help (notebook) examples use deprecated usage. [Reviewed by David Kirkby; merged in sagenb-0.7.5.2] #8443: Mitesh Patel, Dan Drake: Active cell jumps to end of worksheet when evaluating a cell [Reviewed by Dan Drake, Mitesh Patel; merged in sagenb-0.7.5.3] Merged in sage-4.3.4.alpha0: #5601: Jason Grout, Mitesh Patel: Colors: CSS3/SVG presets, construct from HSL/HSV, blend/lighter/darker methods [Reviewed by Jason Grout, Karl-Dieter Crisman] #6503: John Palmieri, Mike Hansen: remove the pyprocessing spkg from sage, then sort out any fallout that results [Reviewed by Minh Van Nguyen] #7520: Sébastien Labbé: Improving word construction [Reviewed by Franco Saliola] #7552: Tim Dumol, Jaap Spies: Update the Twisted package to 9.0 [Reviewed by William Stein, Mitesh Patel, David Kirkby] #7619: Sébastien Labbé: Pickling support for finite word defined by callable and iterable [Reviewed by Franco Saliola] #7671: Nathann Cohen: strongly_connected_components in c_graphs [Reviewed by Robert Miller] #7761: Jaap Spies: Python 2.6.2.p4 faills to build on OpenSolaris [Reviewed by David Kirkby] #7854: Nathann Cohen: speed up edge_connectivity in easy cases [Reviewed by Paul Zimmermann] #7872: Bill Cauchois, Oscar Gerardo Lazo Arjona, Jason Grout: Adding coordinate transformations to plot3d [Reviewed by Karl-Dieter Crisman, Jason Grout] #7877: Jason Grout: matrix indexing should be explained in the manual [Reviewed by Robert Bradshaw, Minh Van Nguyen] #7927: Jennifer Balakrishnan, Robert Bradshaw: Extend coleman integration to handle Weierstrass points [Reviewed by Kiran Kedlaya] #7966: Nathann Cohen: Giving some punch to distance computations [Reviewed by Paul Zimmermann] #7984: Robert Bradshaw: QQbar doesn't use canonical coercion for comparison [Reviewed by John Cremona] #8008: Jason Grout: Implement an rref() function which works over the fraction field of the base ring of a matrix [Reviewed by Sebastian Pancratz, Minh Van Nguyen, Karl-Dieter Crisman, Rob Beezer] #8037: Marc Mezzarobba: add sagetex to the french tutorial [Reviewed by Dan Drake] #8039: Jaap Spies: ATLAS libs fail to build on Open Solaris 64 bit due to wrong LDFLAG -melf_x86_64 [Reviewed by David Kirkby] #8131: Francis Clarke: Catalan numbers are integers [Reviewed by Nicolas Borie] #8157: François Maltey, Paul Zimmermann: why the bit limit of 2^24 in RealField? [Reviewed by Alex Ghitza] #8159: Fredrik Johansson: Updated Cython backend for mpmath [Reviewed by Harald Schilly] #8178: Jaap Spies: zn_poly fails to build in Open Solaris x64 as 64 bit even if SAGE64=yes [Reviewed by David Kirkby] #8187: Sébastien Labbé: improve equality tests for words [Reviewed by Alexandre Blondin Massé] #8191: David Kirkby: Add iconv needed for Solaris, and possibly Cygwin too [Reviewed by Minh Van Nguyen] #8227: Alexandre Blondin Massé: Improving iterated palindromic closure computation [Reviewed by Sébastien Labbé] #8244: John Palmieri, Mitesh Patel: Annoying warnings when building the HTML reference manual [Reviewed by Mitesh Patel, John Palmieri] #8255: Dan Drake: update SageTeX spkg to 2.2.3.p0 to fix spkg-check script [Reviewed by John Palmieri] #8259: Anne Schilling: Conversion from symmetric polynomials to basis of monomial symmetric functions [Reviewed by Jason Bandlow] #8260: Robert Bradshaw: valuation of zero is wrong for Qq [Reviewed by David Roe] #8268: Sébastien Labbé: Improve speed of Christoffel word construction [Reviewed by Alexandre Blondin Massé] #8273: Alexandre Blondin Massé: Enumeration of cycles in directed graphs [Reviewed by Nathann Cohen] #8275: William Stein: upgrade to ecl 10.2.1 [Reviewed by David Kirkby] #8276: Florent Hivert: Make the one(), identity_matrix() and zero_matrix() cached and immutable [Reviewed by Martin Raum, Ross Kyprianou] #8285: David Kirkby: Update R's spkg-install to work on Solaris [Reviewed by Minh Van Nguyen] #8289: Sébastien Labbé: Clean up WordMorphism.__call__ [Reviewed by Alexandre Blondin Massé] #8294: Florent Hivert: Copy is broken on 2x2 integer matrix (mutability is not set) [Reviewed by Martin Raum] #8295: Daniel Bump: Documentation for Kazhdan-Lusztig polynomials and Iwahori Hecke algebras [Reviewed by Minh Van Nguyen] #8299: Robert Bradshaw: coercion and the bool type [Reviewed by Ross Kyprianou] #8302: John Palmieri: cubical complexes, delta complexes, and more [Reviewed by Marshall Hampton, Minh Van Nguyen] #8304: Jennifer Balakrishnan: Remove stray factors of 2 in Coleman integration [Reviewed by Kiran Kedlaya] #8307: Mitesh Patel: gfan-0.4plu keeps getting upgraded [Reviewed by Minh Van Nguyen] #8309: Robert Bradshaw: speedup prime range [Reviewed by Paul Zimmermann] #8310: Minh Van Nguyen: bad ReST formatting in kazhdan_lusztig.py [Reviewed by Mitesh Patel] #8318: Sébastien Labbé: overlap_partion of a word should return an instance disjoint set data structure [Reviewed by Alexandre Blondin Massé] #8319: John Cremona: elliptic curve canonical height bug for non-minimal models [Reviewed by Chris Wuthrich] #8320: Mitesh Patel: Make HTML doc headers and footers more compact [Reviewed by Minh Van Nguyen] #8323: Craig Citro: The variable "name" is predefined in Sage [Reviewed by Paul Zimmermann] #8326: Mitesh Patel: Sphinx warnings about posets and poset_example [Reviewed by John Palmieri] #8328: Minh Van Nguyen: clisp rather than ecl mentioned on web page [Reviewed by David Kirkby] #8331: Ryan Hinton: BipartiteGraph constructor does not create partitions for dict inputs [Reviewed by Robert Miller] #8347: Nicolas Borie: Test the positivity of a number field element [Reviewed by Paul Zimmermann] #8349: Craig Citro, Chris Wuthrich: bug in isogenies [Reviewed by John Cremona] #8362: Sebastien Labbe: Fix typo in documentation of Disjoint Union of Enumerated Sets [Reviewed by Andrey Novoseltsev] #8363: David Kirkby: cddlib-094f.p4 has a useless check for mpir which breaks on Solaris [Reviewed by Jaap Spies, Minh Van Nguyen] #8365: Marc Mezzarobba: Reorganize slightly the outline of the documentation of Polynomial Rings [Reviewed by Minh Van Nguyen] #8396: Samuele Giraudo: element_class of Subsets is broken [Reviewed by Nicolas Borie] #8412: Ivan Andrus: Trivial Center of Matrix Group [Reviewed by David Joyner] Merged in sage-4.3.4.alpha1: #7091: Mitesh Patel: sqlachemy test suite fails when building with SAGE_CHECK [Reviewed by William Stein] #7448: Florent Hivert: Sphinx nested class rendering. [Reviewed by Mitesh Patel] #7733: Nathann Cohen: Graph(g) and DiGraph(g) do not keep the embedding ! [Reviewed by Robert Miller] #7867: Dave Kirkby: GCC reports incorrect flags compiling descent_two_isogeny.c on Solaris 10 [Reviewed by Jaap Spies] #7902: Gonzalo Tornaria: scipy-0.7.p3: misbuilt silently, due to missing perl modules [Reviewed by Minh Van Nguyen] #7943: Mitesh Patel: move docbuild commands to their own targets in SAGE_ROOT/makefile [Reviewed by Minh Van Nguyen, John Palmieri] #7993: Willem Jan Palenstijn: whitespace error in doctest causes A Mysterious Error. [Reviewed by Paul Zimmermann] #8112: Jaap Spies: flint fails to build in Open Solaris x64 as 64 bit since FLINT_TUNE is not set [Reviewed by David Kirkby] #8233: Sébastien Labbé: concatenation of words should preserve the data type representation when possible [Reviewed by Alexandre Blondin Massé] #8261: Mike Hansen: cygwin: mpfr fails 1 test in its test suite on windows [Reviewed by Minh Van Nguyen] #8266: Sébastien Labbé: Improve documentation for word objects [Reviewed by Alexandre Blondin Massé] #8283: Yann Laigle-Chapuy: A better Carmichael lambda function [Reviewed by David Joyner, Minh Van Nguyen] #8296: Nicolas M. Thiéry: getattr hack not failing graciously on descriptors / tab completion broken in emacs [Reviewed by Mike Hansen] #8325: Mitesh Patel: Sphinx warning: 'Could not parse cython argspec' [Reviewed by John Palmieri] #8353: Alexandre Blondin Massé: Adding height() and width() functions to square grid paths [Reviewed by Sébastien Labbé] #8354: John Palmieri: ReST fixes based on Sage 4.3.3 [Reviewed by Mitesh Patel] #8356: python 2.6.4 is configured with an unrecognised option [Fixed by #8440] #8357: John Cremona, Mitesh Patel: eclib: suppress / delete files left by doctests and check, fix building in parallel [Reviewed by Minh Van Nguyen] #8358: Paul Zimmermann: improved documentation of number_field.py [Reviewed by Christian Wulthrich] #8374: David Kirkby: Numerical noise in devel/sage/sage/symbolic/constants_c.pyx [Reviewed by Mitesh Patel, Jaap Spies] #8375: David Kirkby: Numerical noise in devel/sage/sage/symbolic/pynac.pyx [Reviewed by Mitesh Patel, Jaap Spies] #8376: Paul Zimmermann: improve documentation for RealField [Reviewed by Robert Mařík] #8391: David Kirkby: Change 'top' to 'prstat' on Solaris for get_memory_usage() and top() [Reviewed by Jaap Spies] #8397: doctest devel/sage/sage/graphs/graph_list.py fails on Solaris 10 (SPARC) [Fixed by #8408] #8398: doctest devel/sage/sage/graphs/generic_graph.py fails on Solaris 10 (SPARC) [Fixed by #8408] #8399: doctest devel/sage/sage/graphs/graph.py fails on Solaris 10 (SPARC) [Fixed by #8408] #8400: doctest devel/sage/sage/databases/database.py fails on Solaris 10 (SPARC) [Fixed by #8408] #8401: doctest devel/sage/sage/graphs/graph_database.py fails on Solaris 10 (SPARC) [Fixed by #8408] #8408: David Kirkby: Update sqlite to 3.6.22 (the latest version) [Reviewed by Mitesh Patel] #8418: Julien Leroy: Reduced Rauzy graph [Reviewed by Sébastien Labbé, Alexandre Blondin Massé] #8422: Florent Hivert: ChainPoset in broken for small input [Reviewed by Nicolas Borie] #8430: Florent Hivert: doctest failures with Sage 4.3.4.alpha0 [Reviewed by Marshall Hampton] #8432: Minh Van Nguyen: make iconv a prerequisite for building gd [Reviewed by David Kirkby] #8435: Mitesh Patel: SageNB 0.7.5.3 [Reviewed by Minh Van Nguyen] #8440: David Kirkby: Removal of pyprocessing causing problems as _multiprocessing not building on Solaris [Reviewed by Minh Van Nguyen] #8445: John Palmieri: sh: kpsewhich: not found - Sage 4.3.4.alpha0 on Solaris [Reviewed by Mike Hansen, David Kirkby] #8452: Florent Hivert, Mitesh Patel: Code check: Pickling of nested classes [Reviewed by Mitesh Patel, Florent Hivert] #8462: Dave Kirkby: Numerical noise in /sage/sage/plot/colors.py on Solairs SPARC [Reviewed by Mike Hansen] #8474: John Palmieri: Detect whether a program is in the path [Reviewed by David Kirkby] Merged in sage-4.3.4.rc0: #8311: John Cremona: elliptic curve random point hangs when group is trivial [Reviewed by Chris Wuthrich] #8406: Yann Laigle-Chapuy: problem with duck typing in c_graph [Reviewed by Robert Miller] #8457: Mitesh Patel: Yet more annoying warnings when building the reference manual [Reviewed by John Palmieri] #8475: Florent Hivert: Pickling of _python_object_alphabet is broken [Reviewed by Sébastien Labbé] #8480: Minh Van Nguyen: stylistic clean-ups on web page of standard documentation [Reviewed by John Palmieri] #8491: Burcin Erocal: incorrect latex produced for some symbolic expressions [Reviewed by Robert Mařík] #8492: John Palmieri: Sage 4.3.4.alpha1: docbuild warnings in HTML version of reference manual [Reviewed by Minh Van Nugyen] #8494: Dan Drake: docstring for digits() should mention its inverse [Reviewed by Minh Van Nguyen] #8498: John Cremona: bug in has_good_reduction for a point on an elliptic curve over a number field [Reviewed by Chris Wuthrich] #8507: Robert Bradshaw: all flag ignored for GF(107)(0).sqrt [Reviewed by Mike Hansen] #8511: John Palmieri: docstring fix for "unexpected indentation" [Reviewed by Minh Van Nguyen] #8528: Minh Van Nguyen, John Palmieri: typo in an exception [Reviewed by John Palmieri, Minh Van Nguyen] #8540: Burcin Erocal: very simple basic sqrt simplification totally broken [Reviewed by Mike Hansen]