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= Sage 4.3.1 Release Tour =

== Major features ==

 * Substantial work towards a complete SPARC Solaris 10 port. This is due to the hard work of David Kirkby. The relevant tickets include [[http://trac.sagemath.org/sage_trac/ticket/6595 | #6595]], [[http://trac.sagemath.org/sage_trac/ticket/7138 | #7138]], [[http://trac.sagemath.org/sage_trac/ticket/7162 | #7162]], [[http://trac.sagemath.org/sage_trac/ticket/7505 | #7505]], [[http://trac.sagemath.org/sage_trac/ticket/7817 | #7817]].
 
 * We're moving closer towards a FreeBSD port, thanks to the work of Peter Jeremy at ticket [[http://trac.sagemath.org/sage_trac/ticket/7825 | #7825]].


== Basic arithmetics ==

 * Implement `conjugate()` for `RealDoubleElement` [[http://trac.sagemath.org/sage_trac/ticket/7834 | #7834]] (Dag Sverre Seljebotn) --- New method `conjugate()` in the class `RealDoubleElement` of the module `sage/rings/real_double.pyx` for returning the complex conjugate of a real number. This is consistent with `conjugate()` methods in `ZZ` and `RR`. For example,
 {{{
sage: ZZ(5).conjugate()
5
sage: RR(5).conjugate()
5.00000000000000
sage: RDF(5).conjugate()
5.0
 }}}


== Combinatorics ==

 * [[http://trac.sagemath.org/sage_trac/ticket/7754 | #7754]] (Nicolas M. Thiéry)


== Elliptic curves ==

 * [[http://trac.sagemath.org/sage_trac/ticket/6583 | #6583]] (Robert Miller)

 * [[http://trac.sagemath.org/sage_trac/ticket/6887 | #6887]] (John Cremona, Jenny Cooley)


== Graph theory ==

 * [[http://trac.sagemath.org/sage_trac/ticket/1321 | #1321]] (Radoslav Kirov, Mitesh Patel)

 * [[http://trac.sagemath.org/sage_trac/ticket/7724 | #7724]] (Nathann Cohen, Yann Laigle-Chapuy)

 * [[http://trac.sagemath.org/sage_trac/ticket/7770 | #7770]] (Rob Beezer)


== Linear algebra ==

 * [[http://trac.sagemath.org/sage_trac/ticket/5174 | #5174]] (John Palmieri)

 * [[http://trac.sagemath.org/sage_trac/ticket/7728 | #7728]] (Dag Sverre Seljebotn)


== Miscellaneous ==

 * [[http://trac.sagemath.org/sage_trac/ticket/6820 | #6820]] (John Palmieri, Mitesh Patel)

 * [[http://trac.sagemath.org/sage_trac/ticket/7482 | #7482]] (William Stein)

 * [[http://trac.sagemath.org/sage_trac/ticket/7514 | #7514]] (William Stein)


== Packages ==

 * [[http://trac.sagemath.org/sage_trac/ticket/7271 | #7271]] (Martin Albrecht)

 * [[http://trac.sagemath.org/sage_trac/ticket/7388 | #7388]] (Robert Miller)
 
 * [[http://trac.sagemath.org/sage_trac/ticket/7483 | #7483]] (William Stein)

 * [[http://trac.sagemath.org/sage_trac/ticket/7692 | #7692]], [[http://trac.sagemath.org/sage_trac/ticket/7749 | #7749]] (Steven Sivek)

 * [[http://trac.sagemath.org/sage_trac/ticket/7745 | #7745]] (Karl-Dieter Crisman)

 * [[http://trac.sagemath.org/sage_trac/ticket/7825 | #7825]] (Peter Jeremy)

 * [[http://trac.sagemath.org/sage_trac/ticket/7840 | #7840]] (William Stein)