3.2

Release Tour

Sage 3.2 was released on November 20th, 2008 (changelog); 183 tickets (PRs) merged, 39 contributors. For the official, comprehensive release notes, see the HISTORY.txt file that comes with the release.

Subspace generation

Robert Miller: generate all subspaces of a vector space/projective space

New Symbolics

William Stein, Burcin Erocal: high level integration of pynac into Sage

General group algebras class

David Loeffler: general group algebras class

Elliptic Curve Doctesting

Paul Zimmermann: much improved elliptic curve doctests and some bug fixes

Modular Forms

Craig Citro: huge number of small fixes to modular forms code. David Loeffler: eta product modular functions. Craig Citro: massively speed up Victor Miller basis code.

Magma Interface

William Stein: much improved Magma interface with 100% doctests

Generalized Bernoulli Numbers

William Stein: massively optimized generalized Bernoulli numbers

Modular Composition

Martin Albrecht, Paul Zimmermann: improve modular composition in GF(2)[x]

Polyhedral Improvements

Marshall Hampton: Schlegel diagrams, standard polytopes, multiplication, polars

Notebook

Timothy Clemans: notebook templatization work

Sage Build

William Stein: make it so "sage -br" does the cythonization in parallel using pyprocessing. Robert Bradshaw, Gonzalo Tonaria, Craig Citro: massively cleaned up and faster setup.py. Robert Bradshaw: update to Cython 0.10.

libSingular

Simon King, Martin Albrecht: fix memory leaks in libsingular's reduce()

Numerical Linear Algebra

Jason Grout: make numpy the backend for matrices over CDF and RDF

Graph Theory

Jason Grout: much more robust planarity testing code for graphs

Full Changelog: 3.1.2...3.2