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| = Sage 3.3 Release Tour = Sage 3.3 was released on FIXME. For the official, comprehensive release notes, see [[http://www.sagemath.org/src/announce/sage-3.3.txt|sage-3.3.txt]]. In general terms, the following points are some of the foci of this release: * Clean up various doctest failures from 3.2.3 * Fix some build issues from 3.2.3 on the new set of supported images * Merge small to medium sized patches ready to go in * Switch to [[http://www.mpir.org|eMPIRe]] for multi-precision integers and rationals * Switch to [[http://ecls.sourceforge.net|ecl]] for a Common Lisp implementation * Update [[http://www.python.org|Python]] to 2.5.4 * Update [[http://pari.math.u-bordeaux.fr|Pari]] to 2.3.4svn * Switch to [[http://www.flintlib.org|FLINT]] for univariate polynomial arithmetic over {{{Z/nZ}}} Here's a summary of features in this release, categorized under various headings. == Algebra == * Transitivity for permutation groups (William Stein) -- In the permutation group module {{{permgroup.py}}}, the query function {{{is_transitive()}}} returns whether or not the group is transitive on {{{[1..G.degree()]}}}. A few surrounding docstrings are fixed and doctest coverage for the file {{{sage/groups/perm_gps/permgroup.py}}} is now 100%. == Algebraic Geometry == * Improved precision and performance when calculating analytic rank (William Stein) -- When calculating the analytic rank of an elliptic curve, the default is to use Cremona's {{{gp}}} script, where the precision is automatically doubled until it doesn't fail. The precision is started at 16 rather than the previous default precision. The computation is now about 3 times faster usually by starting off using this smaller precision. == Basic Arithmetic == * {{{ivalue}}} field in {{{integer_mod.pyx}}} is no longer public (Craig Citro) -- The {{{ivalue}}} field for {{{IntegerMod_int}}} is no longer public. This gives about a 1.5 to 2X speedup when multiplying {{{IntegerMod_ints}}}. * Some fixes for {{{is_perfect_power}}} and {{{bessel_J(0,0)}}} (Craig Citro, Robert Bradshaw, Robert Miller) -- A temporary work around for an upstream bug in GMP when using {{{is_perfect_power()}}}. Resolved a Pari interface bug when using {{{bessel_J(0,0)}}}. * Improved performance for generic polynomial rings, and for univariate polynomial arithmetic over {{{Z/nZ[x]}}} (Yann Laigle-Chapuy, Martin Albrecht) -- Improved performance when performing modulo arithmetic between elements of a generic polynomial ring. Univariate polynomial arithmetic over {{{Z/nZ[x]}}} now has considerable speed-up at approximately 20x. == Build == * 64-bit OSX (Michael Abshoff) -- Fixed 64-bit OSX build support for f2c, added 64-bit OSX build support for tachyon, added 64-bit OSX build support for flintqs, and added persistent Sage 64-bit building switch on OSX and Solaris. == Calculus == * LaTeX output (Mike Hansen) -- Added LaTeX output for ceiling, floor, and derivative functions, and LaTaX'ing of powers of negative numbers. * Make {{{bernoulli_polynomial}}} independent of Maxima (Craig Citro) -- A rewrite of {{{bernoulli_polynomial}}} to avoid using Maxima completely in computing Bernoulli polynomials. This gives roughly a factor of 10 speedup. == Coding Theory == * Weight distribution for binary codes (Robert Miller) -- A weight distribution algorithm for binary codes using Robert Bradshaw's bitsets. This implementation in [[http://www.cython.org|Cython]] gives a 19 to 20 times performance speed-up over the previous GAP/Guava implementation. == Coercion == * Ring coercion for polynomials over finite fields (William Stein). * Move univariate polynomial rings to new coercion model (Robert Bradshaw). == Combinatorics == == Commutative Algebra == == Distribution == == Doctest == == Documentation == == Geometry == == Graph Theory == == Graphics == == Group Theory == == Interact == == Interfaces == == Linear Algebra == == Memory Leak == == Miscellaneous == == Modular Forms == == Notebook == == Number Theory == == Numerical == == Optional Packages == == Packages == == Porting == == Solaris == == User Interface == == Website/Wiki == |
