Hello folks,
Sage 2.10.2 has been released on February 23nd, 2008. It is available at
http://sagemath.org/download.html
* About Sage (http://www.sagemath.org)
Sage is developed by volunteers and combines 71 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,
You can also drop by in #sage-devel or #sage-support infreenode.
We have closed the Google Groups sage-newbie and sage-forum so
that we can deal with support questions in sage-support only. We
decided to close those two groups since we had various inquiries
left unanswered due to people posting to the wrong group.
-- Michael Abshoff and William Stein
---------------------------------------------------------------------
The following 35 people contributed to this release:
* Tim Abbott
* Michael Abshoff
* Martin Albrecht
* Nick Alexander
* Jen Balakrishnan
* Karim Belabas
* Jonathan Bober
* Tom Boothby
* Robert Bradshaw
* Nils Bruin
* Craig Citro
* John Cremona
* Burcin Erocal
* Gary Furnish
* Alex Ghitza
* Rob Gross
* Jason Grout
* John Hanke
* Mike Hansen
* David Harvey
* Peter Jipsen
* David Joyner
* Kiran Kedlaya
* Robert Miller
* Kate Minola
* Joel Mohler
* Bobby Moretti
* Willem Jan Palenstijn
* Clement Pernet
* David Roe
* Jaap Spies
* William Stein
* John Voight
* Justin Walker
* Carl Witty
Cheers,
Michael Abshoff (release chair), William Stein
* Major Features, New Spkgs and Bugfixes
* John Voight's fast new code for enumeration of totally
real fields is now included.
* David Roe's code for unramified and Eisenstein extensions
of Qp and Zp is now included.
* Clement Pernet, Burcin Erocal and William Stein have implemented
an optimized p-adic/modular algorithm for computing Hermite
normal forms of matrices over the integers. For random square
nonsingular matrices with small entries it is similar to Magma
in speed, and vastly faster than the implementations in Gap,
NTL, and PARI. For matrices with large entries (e.g., 16 bits
or more), it is faster than anything else in the world.
For nonsquare matrices it is also reasonably good, though more
optimization is needed since Magma is much better in some cases.
We also implemented related code for computing determinants
over QQ and ZZ, which is again the fastest in the world
especially when the matrix entries are large. The main
reasons for the speed of our implementation are (1) IML is fast,
and (2) we found some tricks that are not in the literature.
* Tim Abbott and Michael Abshoff worked on the Debianization of
the build process. Due to a lot of work done by Project Athena
at MIT Tim Abbott contributed many build scripts for chroot
environments. He also contributed build scripts for nearly
all of the SPKGs not yet in Debian. Michael Abshoff did set
up a test build server and while it has been shut down for
now the Sage project will set up another 64 bit build server
in the near future top provide Debian packages for a wide
variety of Debian based distributions.
* Graph Theory: Robert Miller has implemented edge-labeled graph
isomorphism, and eliminated many bugs in the main backtrack algorithm.
He also made a few minor optimizations, and added an option which
visualizes the structure that is searched during the running of the
algorithm. This should make it easier to see what the algorithm is
actually doing. Jason Grout refereed, and found another bug in the
process, which has also been fixed. Also every permutation
of every graph on seven or fewer vertices has been verified to
give correct output.
* Assorted bug and build fixes all over the map.
* Known Issues with 2.10.2:
* None
* Bug Statistics
We closed 156 tickets. For details see
http://trac.sagemath.org/sage_trac/milestone/sage-2.10.2
or check out the closed ticket section at the end of the
announcement.
* Upcoming Releases
The next release will be 2.10.3, chaired by Michael Abshoff and
Robert Miller. The release is planned post Sage Days 8, but
details are sketchy at the moment. Potential features include:
* OSX 10.5 support in 64 bit mode [this will depend on fixing
a vexing segfault in libSingular and getting disutils to
play nice with numpy]
* gcc 4.3 support out of the box
* FreeBSD support out of the box
* Improved experimental Solaris support
* Doctesting Coverage
For 2.10.1 we had:
Overall weighted coverage score: 38.3%
Total number of functions: 18290
We increased coverage by 1.8% in 2.10.2 while adding 238 functions:
Overall weighted coverage score: 40.1%
Total number of functions: 18528
* Closed Tickets:
Merged in final:
#2257: Craig Citro: re-fix doctest failures for 2.10.2.rc0 in
sage/rings/number_field/
#2259: David Roe: Fix doctest in pow_computer
#2261: Michael Abshoff: setup.py: Don't add empty Debian
directory to scripts section
#2263: Michael Abshoff: numerical noise doctest failure in
calculus/calculus.py
#2264: Michael Abshoff: 2.rc0: numerical noise doctest failure
in rings/real_rqdf.pyx
#2267: Michael Abshoff: Sage 2.10.2: fix latex errors when
generating the documentation
Merged in rc0:
#1946: John Cremona, William Stein: Tate's algorithm has
NO DOCTESTS! /schemes/elliptic_curves/ell_number_field.py
#2049: William Stein: symbolic matrix exp
#2075: William Stein, Martin Albrecht: very serious bug in
modules over QQ[x] -- they shouldn't "work"
#2223: David Joyner: bessel_J -- precision errors
#2224: William Stein: strange show doctest bug in group.pyx
#2225: William Stein: sage-2.10.2.alpha1 -- genus2reduction is
now completely broken
#2226: William Stein: sage-2.10.2.alpha1 -- integral is now wrong
(imho) for polynomials
#2230: William Stein: sage-2.10.2.alpha1 -- linear algebra hash
not implemented
#2246: William Stein: sage-2.10.2.alpha2: special.py -- fix it
and several bugs etc
#2247: Craig Citro: comment out long doctest in totallyreal_rel.py
#2248: Michael Abshoff: sage-2.10.2.alpha2: multi_polynomial.pyx
doctest failure
#2249: William Stein: comments to indicate in docstrings that
log is not finished in some cases for p-adics
#2250: Robert Bradshaw: elliptic_curves/monsky_washnitzer.py
doctest failure with -long
#2251: Craig Citro: rings/number_field/number_field.py doctest
failure
#2252: Craig Citro: rings/number_field/number_field_ideal.py
failure
#2253: William Stein: timeit doctests not robust enough
Merged in alpha2:
#1961: Robert Miller: Fix graph_isom bug
#2186: Robert Miller: verbosity for graph_isom - visualize the
tree that is traversed during search
#2211: Robert Miller: another segfault issue in graph_isom
#2213: Robert Miller: misc graph theory fixes
#2218: Mike Hansen: assuming an expression is not equal to
another expression doesn't work
#2221: Gary Furnish: Silent failure of sage-env
#2227: William Stein, Michael Abshoff: doctest broken in
sageinspect.py because I added a new option
#2228: William Stein, Michael Abshoff: fractional ideal doctest
failure -- output is equivalent
#2229: Craig Citro: breakage in new totally_rel.py
#2231: Mike Hansen, William Stein: doctest failure in
partition_algebra.py
#2233: Willem Jan Palenstijn: "valuation too large" in padics
on 64bit
#2234: Martin Albrecht: typo fix in doctest
#2236: Jason Grout: plot randomizes the endpoints of the interval
and causes wiggling in the graph
#2238: William Stein, Alex Ghitza: doctest failure in const.tex
Merged in alpha1:
#174: William Stein: Implement a modular Hermite Normal Form
algorithm
#506: William Stein: add %timeit support to the notebook
#521: David Harvey, Alex Ghitza: increase the doctest coverage for
schemes/elliptic_curves/monsky_washnitzer.py
#1116: Michael Abshoff: sage -sdist recreates certain empty files
in $SAGE_LOCAL/bin
#1130: John Cremona, Nick Alexander: point counting for elliptic
curves over non-prime finite fields
#1171: Robert Bradshaw: _new() method for quadratic field elements
#1304: Robert Miller: edge-labeled graph isomorphism
#1601: Rob Gross, Michael Abshoff: issue with noclobber and
building sage
#1651: David Joyner: bug in decode
#1857: David Joyner: examples of parametric surfaces in 3d
#1971: Jason Grout: notebook/jsmath -- make an optional spkg with
the image fonts
#1987: Nils Bruin: "forall" and "exists" need pointers in docstring
to "all" and "any
#2004: David Harvey: padic_height_via_multiply
#2041: Alex Ghitza: tutorial: long lines in verbatim environments
get cut off in pdf file
#2063: William Stein: sage -q is broken
#2079: Robert Bradshaw: /= does not work for univariate polynomials
#2085: Robert Miller: bug in graph_isom and binary_code
#2089: Martin Albrecht: major finite field printing bug
#2107: Clement Pernet, Michael Abshoff: serious malloc problem
triggered by Hecke operator computation
#2126: Alex Ghitza: small fixes to eisenstein_series_qexp()
#2127: Clement Pernet: Mod n determinant and LinBox/FFPACK
#2128: Kate Minola, Alex Ghitza: bug in random_prime
#2133: Alex Ghitza: running dimension_modular_forms on weight 0
should return 1 (trivial to fix)
#2146: Burcin Erocal: PolyBoRi random_element is broken
#2172: Michael Abshoff: sage -sdist loses debian build infrastructure
#2176: Tim Abbott: debianize tachyon.spkg
#2177: Tim Abbott: debianized jmol.spkg
#2178: Carl Witty: latex2html does not like $+$
#2182: Jason Grout: undefined symbol: gzopen64 when starting the
notebook()
#2183: David Joyner: scipy and special functions, better doctesting
#2184: Robert Miller: readjust xmin...ymax for plotting digraphs
with arrows
#2185: Robert Miller: improvement to plotting digraphs with fixed
heights
#2187: Carl Witty: improve refman autogeneration; add and rewrite
much reference manual text
#2190: William Stein: implement a ZZ-module saturation algorithm:
this is the key thing needed to compute kernels over ZZ, etc.
#2191: Tim Abbott: Debianize gfan spkg
#2193: Burcin Erocal: doctest framework should check for keywords
only in comments
#2194: Carl Witty, William Stein: Elliptic curves over QQbar: point
creation fails
#2196: John Cremona: Elliptic Curve quadratic/quartic/sextic twists:
unhelpful error message when D=0
#2201: Craig Citro: doctest failure: number_field.py
#2202: Tim Abbott: Debianize rubiks spkg
#2204: William Stein, Michael Abshoff, Karim Belabas: Integrate
Karim Belabas's HNF bug fix for pari, add 64 bit OSX support
for pari.spkg
Merged in alpha0:
#1014: Alex Ghitza: there should be an Integer.number_of_digits()
function
#1085: John Voight, Craig Citro: code for enumerating totally real
fields
#1366: Bobby Moretti: speed up "sage -br" - cache the dependency
diagram instead of computing it every time
#1371: John Hanke: hg_sage.pull/push() to non-default server with
multiple branches
#1413: Joel Mohler: added _sig_on/_sig_off to mpolynomial_libsingular
#1714: Martin Albrecht: allow keyword arguments for remote sage
methods (sage0)
#1793: Martin Albrecht: Hilbert series, Hilbert polynomial, Laurent
series expansion
#1824: Martin Albrecht: *huge* memory leak in PolyBoRi iteratiors
#1908: Jason Grout: Make it so that show plots a list as a grid
#1927: Mike Hansen: dots in symbolic variable names should not be
allowed, etc.
#1963: David Roe: unramified and eisenstein extensions [Credit also
goes to Craig Citro, Kiran Kedlaya, Robert Bradshaw, Jen
Balakrishnan, Nick Alexander for extensive review and bug
fixes, especially during Bug Day 7]
#2003: Justin Walker, Michael Abshoff: gnutls configure script finds
local copy of guile when it shouldn't
#2032: William Stein: bug in bundle script for sage hg repo
#2036: Jason Grout: maxima is off by -1 with its charpoly
#2046: Carl Witty: save(srange(3), './foo') fails
#2047: Carl Witty: new fast float evaluation framework does not
work with multivariate polynomials
#2051: Martin Albrecht: added documentation for parameters of
groebner_basis method of boolean ideals
#2053: William Stein: creating symbolic matrices is insanely slow
#2055: Martin Albrecht: MPolynomialRing(BooleanPolynomial)
#2056: Peter Jipsen: 3d graphics examples: include two very nice
examples in the sage docstrings
#2057: William Stein: followup to #1983 -- 0^0 for 0 a rational
#2068: Michael Abshoff: zlib -- not picking up the right zlib when
building libpng
#2073: Willam Stein, Mike Hansen: calculus -- get doctest coverage
above 50%
#2074: Tom Boothby: PermutationGroupElement constructor bug.
#2077: Jason Grout: matrix.column(i) should throw error when i is
larger than the number of columns in the matrix (minus 1).
#2080: William Stein: notebook -- create eval_asap cells; fix bug
in checkbox functionality
#2081: Mike Hansen: Add .coefficients() and .exponents() to
univariate polynomials and power series
#2082: Robert Miller: plot loops
#2083: Nick Alexander: Make number_field .galois_closure require
a name and .galois_conjugates take an explicit field.
#2097: Bobby Moretti, Carl Witty: aspect_ratio option to show() for
function plots does not work correctly
#2098: Tim Abbott: rudimentary debian package build support
#2101: Tim Abbott: debianize various spkgs
#2104: Tim Abbott: missing dependency: lcalc on mpfr
#2111: Martin Albrecht: Gröbner bases over any field
#2112: Mike Hansen: __contains__ sometimes fails with SR elements
due to == returning an equation
#2115: Mike Hansen: add native python implementation of multiset
combinations
#2116: Jason Grout: is package installed function
#2123: Craig Citro: bug in modular symbols setting sign on subspace
#2124: Craig Citro: minor bug in f.root_field()
#2125: Jonathan Bober: bober's name is spelled wrong
#2132: Carl Witty, Michael Abshoff: disable "padlock" support in
libgcrypt
#2134: Robert Miller: arrows for digraphs
#2139: Mike Hansen: set partitions iterator not working
#2140: Nick Alexander: enhance search_src and add search_def for
easier source navigating.
#2144: Robert Bradshaw: hex constants do not work as expected
#2147: Nick Alexander: Make default cyclotomic polynomial be
defined over ZZ.
#2156: Robert Bradshaw: update cython to 0.9.6.12 release
#2158: Jaap Spies: Fix some typos in matrix/matrix2.pyx
#2160: Jaap Spies: leftovers from python to cython translation
#2161: Joel Mohler: some speed improvements for mpolynomials over ZZ
#2162: William Stein: pari stack -- ability to resize at runtime
#2164: Mike Hansen: add fast iterator for partitions
#2166: Michael Abshoff: matrix/matrix_symbolic_dense.pyx doctest
failure
#2168: Mike Hansen: add native implementation for PartitionTuples
#2169: William Stein: magma <--> sage conversions: first step to
more systematic conversions back and forth
--
William Stein
Associate Professor of Mathematics
University of Washington
http://wstein.org
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