sage-2.10.1.txt

Hello folks,

Sage 2.10.1 has been released on February 2nd, 2008. It is available at

           http://sagemath.org/download.html

* About Sage (http://www.sagemath.org)

Sage is developed by volunteers and combines over 75 open source
packages.  It is available for download from 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,
sage-support, sage-forum or sage-newbie. You can also drop by in
#sage-devel on irc.freenode.net.

---------------------------------------------------------------------

At least the following 27 developers contributed to this release:

 * Michael Abshoff
 * Martin Albrecht
 * Nick Alexander
 * Robert Bradshaw
 * Michael Brickenstein
 * Craig Citro
 * Timothy Clemans
 * John Cremona
 * Burcin Erocal
 * Alex Ghitza
 * Jason Grout
 * Mike Hansen
 * David Harvey
 * David Joyner
 * Josh Kantor
 * Simon King
 * David Kohel
 * Robert Miller
 * Joel Mohler
 * Willem Jan Palenstijn
 * Yi Qiang
 * Denis Simone
 * William Stein
 * Steve Vonn
 * Ralf-Philip Weinmann
 * Carl Witty
 * Paul Zimmermann 
 
Cheers,

Michael Abshoff (release chair), William Stein

* Major Features, New Spkgs and Bugfixes

 * Updated to eclib.spkg from cremona.spkg. 
 * Update to FLINT 1.0.6
 * Updated to MPFR 2.3.1 which contains an important fix that 
   avoids smashing the stack with large precisions
 * Improved ATLAS with pre-tuned settings for more CPUs. This 
   greatly reduced the compile time on Pentium M and Athlon CPUS. 
 * Massive improvements on the doctesting coverage.
 * Fix security issue with the notebook (found by T. Clemans). 
   It is *highly* recommended that you upgrade.
 * Fixed various memleaks in PolyBoRi. There are still some 
   issues in the PolyBoRi wrapper.
 * Progress on the Solaris port as well as the 64-bit OS X port. 
   Neither port is yet ready for prime time.

* Known Issues with 2.10.1:

 * GNUTLS might fail to build on OS X if guile is present. For a 
   workaround use the updated GNUTLS spkg linked from ticket #2003
 * You need to update the optional valgrind.spkg to the 3.3.0 
   release because the interface has been changed in 2.10.1 and it
   isn't backward compatible with earlier releases.

* Bug Statistics

We closed 186 tickets. For details see

    http://trac.sagemath.org/sage_trac/milestone/sage-2.10.1

* Upcoming Releases

The next release will be 2.10.2, chaired by Michael Abshoff. The release
is planned post Sage Days 7, but details are sketchy at the moment. 
Potential features include:

 * David Roe's unramified and Eisenstein extensions of Qp and Zp 
 * John Voight's code for enumerating totally real fields [with 
   generalizations for not-totally real fields]
 * OS X 10.5 support in 64-bit mode [this will depend on fixing
   a vexing segfault in libSingular and getting distutils to
   play nice with numpy]
 * GCC 4.3 support out of the box
 * FreeBSD support out of the box
 * Michael Abshoff's improved experimental Solaris support
 * William Stein's rewrite of the mwrank Cython interface

* Doctesting Coverage

For 2.10 we had:
Overall weighted coverage score:  35.4%
Total number of functions:  18296

We increased coverage by 2.9% in 2.10.1 while removing 6 functions:
Overall weighted coverage score:  38.3%
Total number of functions:  18290

* Closed Tickets:

Merged in rc5:

#1547: Michael Abshoff: Add pre-tuned settings for ATLAS for 
       certain CPUs
#1886: Michael Abshoff: add ATLAS pretuning for AMD Athlon MP 
       processors
#1977: Michael Abshoff: valgrind 3.3.0 no longer appends $PID per 
       default to the logs
#1986: William Stein: Numerical noise in fast evaluation code.
#1999: Michael Abshoff, William Stein: delete mpl3d code from sage
#2019: David Joyner: problem with gap_packages-4.4.10_3
#2021: Jason Grout: Only start one maxima instance
#2026: William Stein, Jason Grout: matrix.eigenspaces doctest 
       description is misleading
#2027: Ralf-Philip Weinmann, Michael Brickenstein: update PolyBoRi
       to current CVS: fix memleak and remove joke patent claim
#2029: Michael Abshoff: adjust TIMEOUT for long and valgrinded 
       doctests
#2035: William Stein: transform.pyx is now broken (probably caused 
       by other fixes)

Merged in rc4:

#1926: Burcin Erocal: fixes for the maple interface
       [this is another patch to fix some more doctest issues]
#1960: Martin Albrecht: bug when reducing Gröbner basis
#1967: William Stein: fix matplotlib locale-related bugs once and for
       all
#1968: Timothy Clemans and William Stein: notebook -- remove
       capability of using live tutorial for users not signed in to
       the notebook server; this was a potential security risk.
#1973: Jason Grout, Mike Hansen: native partition_associated function
#1983: William Stein: change 0^0, for 0 a Sage integer, to evaluate 
       to 1 for consistency with Python, PARI, Magma, Maple, MPFR, 
       GMP, etc.
#1985: Steve Vonn, Michael Abshoff: is_pseudoprime docstring 
       doesn't wrap
#1988: Craig Citro: doctest fallout -- osx ppc 10.4 overflow error
#1989: Craig Citro: doctest fallout -- osx ppc 10.4 matrix index out 
       of range
#1996: Craig Citro: doctest failure on 2.10.1.rc3: libecm.pyx
#2002: Jason Grout: creating a fresh new notebook in sage-2.10.1.rc3 
       is broken
#2005: William Stein: The .sage directory -- adjust permissions
#2006: Michael Abshoff: crap -- gap contains a binary
#2008: Michael Abshoff: crap -- cython contains a stupid OS X file
#2009: Michael Abshoff: crap -- networkx spkg in sage-2.10.1.rc3 
       contains a bunch of .svn directories
#2010: Michael Abshoff: crap -- libpng contains lots and lots of 
       weird (OS X?) temp or meta files
#2011: Michael Abshoff: crap -- mpfi ships with two precompiled 
       binaries
#2012: Michael Abshoff: crap -- jmol contains some os x files 
       that shouldn't be there
#2013: Michael Abshoff: crap -- f2c spkg contains precompiled binary
#2014: Michael Abshoff: crap -- matplotlib contains an annoying OS 
       X temp file
#2015: Michael Abshoff: crap -- twisted contains a bunch of ._ osx 
       crap
#2016: Michael Abshoff: crap -- there is a precompiled object 
       file in the SAGE_ROOT/examples directory
#2018: Michael Abshoff: crap -- scipy sandbox has a bunch of .svn 
       directories
#2022: William Stein: bug with load and loads when data is not 
       compressed during save

Merged in rc3:

#740: John Cremona: Implement standard transformations for elliptic 
      curves & points
#1328: Michael Abshoff: 2.8.14/Solaris: partitions_c.h compile fix
#1329: Michael Abshoff: 2.8.14/Solaris: real_rqdf.pyx compile fixes
#1554: Mike Hansen: issues with calling symbolic expressions
#1637: Michael Abshoff: Update to mpfr 2.3.1 - fix small issues in 
       the spkg
#1887: Robert Miller: graph isomorphism for multiple edges
#1923: Jason Grout: Make an obvious checkbox or menu to switch on 
       pretty printing in the notebook
#1938: Robert Bradshaw: Fast (double) function evaluation for 
       plotting, etc.
#1958: Craig Citro: fix problems with ANSI codes in sage0.py
#1966: Josh Kantor: inline_fortran broke on OS X
#1970: Willaim Stein, Martin Albrecht: gnutls should not be needed 
       if you're running the notebook insecurely, so don't require it
#1972: William Stein: programming guide -- fix a confusing typo
#1978: Yi Qiang, Michael Abshoff: update python-gnutls
#1979: John Cremona, Michael Abshoff: doctest fall out from #740 
       in tut.tex

Merged in rc2:

#571: John Cremona, Denis Simone, William Stein: weird doctest 
      failure in simon_two_descent [to quote William: "John and 
      Denis Simone in fact did greatly update this code and it 
      is now in Sage. And this particularly doctest runs almost 
      instantly now, so remove #long"]
#1058: John Cremona, William Stein: the mwrank interface barfs on 
       bad input
#1649: John Cremona, William Stein, Michael Abshoff: Updated
       eclib.spkg to eclib-20080127.spkg
#1650: John Cremona: eclib.spkg: fix tsat test failure
#1823: Robert Bradshaw, Carl Witty: RDF/CDF coverage, consistent 
       hashing
#1922: Jason Grout: change and update lprint
#1940: Martin Albrecht: Segmentation fault when comparing two empty 
       ideals
#1953: Carl Witty: fix problems in calculus.py found by Jason while 
       reviewing #1945
#1954: Mike Hansen: sage/modules/free_module_element.pyx computing 
       abs(vector(...))
#1957: Michael Abshoff: Solaris 9 fixes for libfplll.spkg
#1959: Michael Abshoff: Solaris 9 fixes for rubiks.spkg

Merged in rc1:

#384: Alex Ghitza, Mike Hansen: latex formatting issues with 
      symbolic expressions
#652: Nick Alexander: .sage files destroy existing .py files
#743: Robert Miller, Carl Witty: graphs: simplify interface for 
      accessing vertex objects
#980: Martin Albrecht, Didier Deshommes: random_element() 
      for multivariate polynomials
#1083: Craig Citro: Bug in degree 1 number fields; manifests itself 
       in element.matrix(), .trace(), .norm(), etc
#1155: Mike Hansen: PermutationGroup coercion bug
#1209: Mike Hansen: make it so maple.gcd?? shows source code
       [later reopened due to more review]
#1456: Mike Hansen: gaussian_binomial bug
#1575: Jason Grout: plotting -- fix vector plotting
#1845: Josh Kantor, Carl Witty: list_plot3d should be able to accept 
       lists of points in arbitrary positions
#1875: William Stein: increase idle timeout and save interval 
       on the notebook to 6 minutes (shorter times cause serious 
       performance problems, esp on large notebook servers)
#1929: Alex Ghitza: add more examples to qqbar.py
#1943: Michael Abshoff: rpy fails to build on OS X 10.4
#1945: Carl Witty: improve reference manual formatting

Merged in rc0:

#1600: Craig Citro: another weird coercion bug
#1911: William Stein, Craig Citro: elliptic curves -- make 
       heegner_index command return index instead of square 
       of index; clarify why sometimes result is not an 
       integer (it's not a bug, it's part of the algorithm)
#1930: Michael Abshoff: R is broken for parallel make, rpy is 
       broken for fresh installs, remove recommended tar.gz
#1931: Michael Abshoff: sage.spkg need to depend on ecm.spkg
#1933: Michael Abshoff: libgpg_error-1.6.spkg broken make install 
       for parallel make
#1934: Michael Abshoff: sage-check for ATLAS broken on OS X
#1935: Craig Citro: legendre_symbol currently quite slow
#1937: Martin Albrecht: fix LLL documentation
#1939: Michael Abshoff: Fix OS X rpy import issues, i.e. 
       DYLD_LIBRARY_PATH fix

Merged in alpha2:

#1028: Michael Abshoff: fix omega support for new valgrind 
       release (3.3.0 once it is out)
#1050: Michael Abshoff: update optional valgrind.spkg to 3.3.0 
       release
#1147: William Stein: change location of valgrind output files 
       to something less obnoxious
#1550: Robert Miller: use libecm instead of pexpect+ecm binary
#1593: Martin Albrecht: m4ri -- the documentation of the echelon 
       command only lists 1 algorithm but >= 2 algorithms are 
       supported
#1617: William Stein: speed problem when factoring polynoms
#1623: Michael Abshoff: update gsl to 1.10
#1724: Craig Citro: Creating ModularForms from q-expansions
#1817: Martin Albrecht: crypto.mq.sr doctest coverage at 100%
#1818: Martin Albrecht: include AES polynomial system generator 
       in reference manual
#1852: Michael Abshoff: Configure R to use Atlas, other build 
       improvements to R package
#1869: Robert Miller: Implement show(list(graphs(n)))
#1873: Mike Hansen: elementary function expansion returns result 
       in the wrong ring
#1889: Martin Albrecht: 2.10.1.alpha2 doctest failure in 
       crypto/mq/sr.py
#1890: Robert Miller: interfaces/libecm.pyx doctest failure
#1894: Martin Albrecht: toy_buchberger failures
#1895: Martin Albrecht: deal with passed through keyword arguments
       for Gröbner basis computation
#1898: Michael Abshoff, William Stein: numerical doctest failure 
       for polynomial_element.pyx on Linux/Itanium
#1899: Robert Miller:  Making graphs with a matrix and loops=True 
       blows up
#1900: Robert Miller, Jason Grout: Clean up adjacency matrix 
       functions for graphs
#1905: Alex Ghitza: both E.Lseries and E.L_series are defined. 
       Just define one of them, say E.Lseries.
#1906: Alex Ghitza: eisenstein_series_qexp does not pay attention 
       to the field parameter
#1913: Burcin Erocal: poles of gamma
#1917: William Stein: get rid of crazy OS X charpoly workaround, 
       since linbox isn't broken anymore 
#1924: Robert Bradshaw, William Stein, Clement Pernet: Optimize 
       matrix multiply cache friendliness

Merged in alpha1:

#1166: William Stein: 2D terminal output is inconsistent and 
       corrupted
#1217: Willem Jan Palenstijn: libfplll error codes
#1274: Martin Albrecht: modify singular interface to allow for 
       verbose output
#1294: Mike Hansen: v.n() function blows up when v is a vector
#1306: Robert Miller: Bundles of graphs
#1418: Joel Mohler: magma element __floordiv__
#1508: William Stein: axes_label in plot() broken
#1577: Martin Albrecht: .coefficients() and .monomials() differ 
       in order in multivariate polynomial rings
#1583: Craig Citro: simple modules of modular symbols over finite 
       fields
#1604: William Stein: more locale problems with python exposed 
       by matplotlib
#1606: William Stein: plotting -- add aspect_ratio option to show 
       command
#1652: Mike Hansen: length of DAGs with loops calculation runs 
       infinite
#1704: David Harvey: replace _DivPolyContext by _multiply_point
#1713: Martin Albrecht: fix SageElement._sage_
#1737: William Stein: ctl-c doesn't exit job in parametric_plot3d
#1718: William Stein: bug in parametric_plot
#1721: Josh Kantor, Michael Abshoff: Introduce SAGE_ATLAS_LIB to 
       skip building of ATLAS
#1787: Michael Abshoff: Apply row-major GEMM major ATLAS errata
#1794: Willem Jan Palenstijn: Gram-Schmidt typo
#1804: Nick Alexander: Factorization.__mul__ assumes that the 
       primes in the factorization commute, which may not be a 
       valid assumption
#1812: Martin Albrecht: doctest coverage for finite_field_givaro up 
       to 100%
#1814: Martin Albrecht: docstrings for stream_cipher.py
#1820: Mike Hansen: update documentation for skew_partition.py
#1829: Martin Albrecht: small improvements for term ordering module
#1831: David Joyner: 3d docs: add more examples of parametric plots
#1832: Mike Hansen: change how real(...) is defined in Sage
#1833: William Stein: plot3d and parametric_plot3d can be very slow 
       on some inputs
#1835: Martin Albrecht: some minor changes to the documentation 
       of basis_is_groebner
#1836: Martin Albrecht: return reduced Groebner bases by default
#1837: Martin Albrecht: pass through options from groebner_basis
       [hunk 2 seems to have snuck in]
#1840: David Kohel: Hill cipher addition to crypto package
#1843: William Stein: cputime for gp interface
#1844: Craig Citro: Get doctest coverage in sage/modular/modform 
       up to 100%
#1854: David Joyner: add more 3d plots to the reference manual
#1856: William Stein: 3d graphics -- bug in setting options via 
       the show command
#1858: William Stein: plot.py coverage is crap -- improve it
#1872: William Stein: serious bug in pickling elliptic curves
#1874: Robert Miller: implement bipartite graphs
#1878: Paul Zimmermann: add new function from mpfr-2.3.0
#1880: Michael Abshoff: qqbar numerical doctest failure
#1881: Michael Abshoff: tut.tex doctest failure with factorize()
#1883: Michael Abshoff: Sage distribution includes Windows 
       executables

Merged in alpha0:

#712: William Stein: SAGE/Maxima is sometimes unable to solve a 
      linear system [solved by #1827 merged in 2.10]
#827: Nick Alexander: nfrootsof1 from Pari
#1391: Martin Albrecht, William Stein : bug in unit part of 
       factorizations of multivariate polynomials
#1485: David Joyner, Simon King: wrapper for invariant_ring and 
       invariant_algebra_reynolds in Singular
#1525: Robert Miller: NetworkX upgraded spkg, Bipartite graphs
#1616: Mike Hansen, David Joyner: Change asin to arcsin, etc.
#1622: Michael Abshoff: update gnutls to 2.2.1
#1627: Michael Abshoff: update libgcrypt to 1.4
#1630: Michael Abshoff: update opencdk to 0.6.6
#1653: David Harvey: Bug raising an integer to a float
#1710: William Stein: switch default location of trac server 
       away from http://www.sagemath.org:9002/
#1715: Martin Albrecht: PolyBoRi pickling/hashing
#1746: Alex Ghitza: add p-norm as a method to vectors
#1772: Mike Hansen, Robert Miller: bug somewhere in the symbolics
#1789: William Stein: standalone Sage scripts don't work on Linux, 
       they work fine on OS X
#1800: Carl Witty: bug with RealIntervalField/MPFI
#1801: Robert Bradshaw: Update cython package to 0.9.6.11
#1813: Martin Albrecht: misc enhancements for ref.pdf
#1821: Michael Abshoff, Bill Hart: Update FLINT to 1.0.6
#1826: Robert Bradshaw, Robert Miller: cdefs.pxi and stdsage.pxi 
       were missing some function declarations
#1850: Robert Bradshaw: serious bug in parametric plotting of curves
#1851: Robert Miller: add documentation, doctests for 
       graphs/bruhat_sn.pyx
#1853: Michael Abshoff: update libgpg_error to 1.6
#1855: William Stein: trivial but visibly very painful bug in plotting
#1859: Robert Bradshaw: 3d and 2d graphics -- some unification