Diff for "DevelopersRoom"

A page to summarise and coordinate SAGE development activity.

Core arithmetic team

[:DavidHarvey:David Harvey], ["Martin Albrecht"], Joel Mohler, Robert Bradshaw, [:WilliamStein:William Stein]

• Develop new __mul__ semantics for rings/algebras using something like ToyQuarternionAlgebraElement as a test case.

• Write up more entries in WritingFastPyrexCode. (everyone)

• Write a benchmarking module or improve on the existing one.
• Optimise pyrex in coercion module.

• Make Algebra _base_ring into a cdef attribute. This will make it possible to give a fast pathway for scalar multiplications.

  • Rewrite polynomials over Z and Z/nZ using direct NTL calls. (David)

• build [:MallocReplacements:omalloc] as a shared library (or link it statically to memory.so the Pyrex wrapper) and make sure as much stuff as possible uses it (SAGE_malloc macros, GMP, etc.)

• Wrap NTL finite extension fields (order \geq 2^{16}) and polynomials over finite fields.

Lower priority issues

• Make generic dense polynomial class in pyrex using C arrays to store coefficients?

Notebook/web team

• Tom Boothby, Alex Clemesha, [:dmr:Dorian Raymer], William Stein
• Change the Notebook over to use Twisted
• Add SSL support for the Notebook (with Twisted/pyOpenSSL)
• Make public Notebook more secure

  • no cross-side scripting by passing cell output thru MoinMoin

  • send passwords (at minimum) over SSL
  • Sage spawns sage0 in a changeroot jail which is firewalled to only listen on the port assigned to it. This sage0 serves the notebook, which spawns an additional sage0 for each worksheet -- these, in turn, are in smaller changeroot jails which have no internet access, and can only read/write from within their worksheet directory.
• Add notebook help browser
• Wikify some parts of the Notebook
• Add ability to edit plain text Notebook cells and then re-upload
• Live bootable notebook (Alfredo Portes)

3D Graphics

Robert Bradshaw, Alex Clemesha, Robert Miller, Tom Boothby ...

• Add 3D Graphics built on top of matplotlib

• Fix & re-optimize tachyon plotting

• Generalize interface with plot3d(f, ..., style='tachyon') to place camera & light sources apppropriately, etc.

Graph Theory Implementation

Emily Kirkman, Robert Miller, Bobby Moretti, Tom Boothby (eventually)

• [:graph: Main Project Wiki]
• [:graph_survey: Existing Software] list; also includes links to several algorithm pages; list is now (/will never be) complete.
• [:graph_benchmark: Benchmarking] Magma, of course, in the lead.
• Robert Miller has interfaced NetworkX's XGraph and XDiGraph, and has implemented 2d plotting.
• [:graph_generators: Graph Generators]: Emily Kirkman is currently creating a class of constructors for common and named graphs.
• [:graph_db_survey: Survey of Existing Graph Database Software] Plans are in the works to build (or wrap) a large database of graphs. Here is the current list of what I've found. Feedback is especially appreciated here.
• [:graph_database: Graph Database]: Jason Grout's SQL lite graph database of graphs on up to 9 vertices is on its way!

GSL

Josh Kantor, William Stein, Tom Boothby

• RDF, CDF are done. Are matrices / vectors?
• Wrap more special functions, add to sage.misc.functions...

Teaching

David Joyner, Bobby Moretti

• Wrapping Maxima functions and creating Python classes to support Calculus and ODEs.
• Creating functions to teach Fourier series and discrete Fourier transforms on various groups.

• See [:BasicCalculus:Basic calculus architecture] for SAGE.

Coding theory

David Joyner

• Wrapping GAP and GUAVA code to support work in error-correcting codes.

Group theory

David Joyner

• Wrapping GAP code and creating Python classes to support work in finite group theory and representation theory.

Documentation

William Stein, David Joyner, [:IftikharBurhanuddin: Iftikhar Burhanuddin]

Other groups add yourselves here