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== Bug Days Challenges ==

The sponsor of the bug-fixing days part of this workshop has the following high-priority challenges for us. It would be great if we could resolve them all.

  * Improve the startup time of Sage (ticket?)
  * [[http://trac.sagemath.org/sage_trac/ticket/10975|10975 -- creation of certain prime finite fields is double dog slow (compared to Magma)]] (patch up by stein; positive review -- David Roe)
  * [[http://trac.sagemath.org/sage_trac/ticket/10801|10801 -- create a new option: "sage -strip" which deletes things that aren't needed for a binary distribution of sage, or for people that will never develop or upgrade]]
  * [[http://trac.sagemath.org/sage_trac/ticket/10912|10912 -- add order setters and Tate and ate pairings]]
  * [[http://trac.sagemath.org/sage_trac/ticket/10976|10976 -- computing order of a certain subgroup of a permutation group is double dog slow (compared to Magma)]]
  * [[http://trac.sagemath.org/sage_trac/ticket/10933|10933 -- time of magma command fails inside function]] (patch up by derickx; positive review -- Martin Raum)
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PEOPLE: Maarten Derickx PEOPLE: Maarten Derickx, William Stein, Martin Raum
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 * [[http://trac.sagemath.org/sage_trac/ticket/8998|8998]] galois_action on cusps has a bug (positively reviewed -- JEC)
 * [[http://trac.sagemath.org/sage_trac/ticket/9526|9526]] Atkin-Lehner operators on modular abelian varieties
 * [[http://trac.sagemath.org/sage_trac/ticket/8614|8614 -- Optimize creation of modular symbols spaces by speeding up quotienting out by 2-term relations]] (needs review)
 * [[http://trac.sagemath.org/sage_trac/ticket/4578|4578 -- Optimize modular symbols decomposition algorithm]] (needs review)
 * [[http://trac.sagemath.org/sage_trac/ticket/10987|10987 -- Add optional arguement to decomposition_of_subspace making restrict not check the subspace]] (needs review)
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 *       Integer points for curves over number fields: Import Nook/Cremona/Kirov/Anderson code into Sage
 * [[http://trac.sagemath.org/sage_trac/ticket/10832|10832]] Bug in simon_two_descent()
 * [[http://trac.sagemath.org/sage_trac/ticket/10973|10973]] Integer points for curves over number fields: Import Nook/Cremona/Kirov/Anderson code into Sage
 * [[http://trac.sagemath.org/sage_trac/ticket/10832|10832]] Bug in simon_two_descent() (positively reviewed -- Weigandt)
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 * [[http://trac.sagemath.org/sage_trac/ticket/10581|10581]] Change Large Cremona to mongodb format and extend it.  * [[http://trac.sagemath.org/sage_trac/ticket/10581|10581]] Change Large Cremona Database to mongodb format and extend it.
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 * [[http://trac.sagemath.org/sage_trac/ticket/10973|10973]] integral_ points over Number fields  * [[http://trac.sagemath.org/sage_trac/ticket/9371|9371]] 2-torsion rank over arbitrary fields
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== Convert GP scripts in data/extcode/pari to pari library interface ==

  * Simon's scripts qfsolve.gp, ellQ.gp, ell.gp (2-descent on elliptic curves over Q and over number fields)
     * [[attachment:ellQ2.gp|revised script]]
     * [[attachment:ellQ2.gp.c|C version of the produced by gp2c]]
     * [[attachment:letter1.txt|Letter from Cohen to Simon explaining what he did]]
     * See [[http://trac.sagemath.org/sage_trac/ticket/11005|11005]] for an spkg and two patches (extcode and library) needing review.

  * Dokchitser's scrip computel.gp (L-functions)
     * [[attachment:TOSEND.tar|tar file contain rsults of all Cohen's work so far and usage instructions]]

PEOPLE: John Cremona, William Stein, Jamie Weigandt
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PEOPLE: Rob Beezer PEOPLE: Rob Beezer, John Palmieri
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  * [[http://trac.sagemath.org/sage_trac/ticket/10752|10752]] make pivots of matrices immutable
  * [[http://trac.sagemath.org/sage_trac/ticket/4983|4983]] subdivision attibute is public
  * [[http://trac.sagemath.org/sage_trac/ticket/10595|10595]] vector constructor and complex numbers
  * [[http://trac.sagemath.org/sage_trac/ticket/10752|10752]] make pivots of matrices immutable (positive review)
  * [[http://trac.sagemath.org/sage_trac/ticket/4983|4983]] subdivision attibute is public (positive review)
  * [[http://trac.sagemath.org/sage_trac/ticket/10595|10595]] vector constructor and complex numbers (positive review)
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  * Duplicate [[http://trac.sagemath.org/sage_trac/ticket/10424|10424]] for matrix stack() method   * [[http://trac.sagemath.org/sage_trac/ticket/10974|10974]] matrix stack(), augment() methods
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== Python 3 ==
 
 * Evaluating which python packages in Sage are ready for Python 3. ([[https://spreadsheets.google.com/ccc?key=0AqIElKUDQl8tdC1lR29XZFlxZUxOU1VlZ1JRQ3ZRanc&hl=en_GB#gid=0|Google Spreadsheet]], [[http://sagemath.org/packages/standard/|Packages in Sage]])
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 * Torpedøing unicode related bugs ([[https://github.com/ipython/ipython/pull/252|Pull request]])
 * Allow %time magic command to work within functions ([[http://trac.sagemath.org/sage_trac/ticket/10933|10933]])
 * General bug sorting and squashing ([[https://github.com/ipython/ipython/issues|bug list]], [[http://githubissues.heroku.com/#ipython/ipython|better bug list]])

Issues Identified
 * [[https://github.com/ipython/ipython/issues/291|291]] Rename special display methods and put them lower in priority then display functions
 * [[https://github.com/ipython/ipython/issues/296|296]] Automatic PDB via %pdb doesn't work
 * [[https://github.com/ipython/ipython/issues/297|297]] Shouldn't use pexpect for subprocesses in in-process terminal frontend
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PEOPLE: Michael Droettboom PEOPLE: Michael Droettboom, Paul Ivanov
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 * Win pub quiz competition [completed]
[[http://pirsquared.org/seattle/03212011523.jpg|{{http://pirsquared.org/seattle/03212011523.jpg|alt Team Scrappies in all their glory!|width=400}}]]
[[http://pirsquared.org/seattle/03212011522.jpg|{{http://pirsquared.org/seattle/03212011522.jpg|alt The winning sheet|width=400}}]]

== Algebraic Curves / Function Fields ==

PEOPLE: Moritz Minzlaff, Maarten Derickx, William Stein, Rado Kirov

Picking up things where [[http://wiki.sagemath.org/daysff/curves|Sage Days 21]] left them.

 * positive review: [[http://trac.sagemath.org/sage_trac/ticket/9053|9053]] fixes row echelon form over general PIDs
 * positive review: [[http://trac.sagemath.org/sage_trac/ticket/9094|9094]] is_square and sqrt for polynomials and fraction fields
 * [[http://trac.sagemath.org/sage_trac/ticket/9054|9054]] create a class for basic function_field arithmetic for Sage

== Sage Notebook (Server) ==

PEOPLE: William Stein, Rado Kirov, Alex Leone, Rob Beezer, Jason Grout

 * [[http://code.google.com/r/rkirov-flask/|Flask notebook]] (Rado Kirov)
 * [[http://code.google.com/p/sage-aleph|Sage Aleph]] (William Stein and Rado Kirov)
 * [[http://aleph.sagemath.org/|http://aleph.sagemath.org]] Aleph - simple single cell testing server, being served by apache + mod_wsgi.
 * `MathJax` 1.1: [[http://trac.sagemath.org/sage_trac/ticket/9774|#9774]] (Rob Beezer)
 * Simple Compute Server (William Stein, Rado Kirov)
 * [[http://code.google.com/p/simple-python-db-compute/| Simple Python Compute Server]] (enhanced from January):

== libGAP ==

PEOPLE: Volker Braun, (Dmitrii Pasechnik), Ivan Andrus

 * Trac ticket [[http://trac.sagemath.org/sage_trac/ticket/6391|#6391]]
 * Documentation: [[http://www.stp.dias.ie/~vbraun/Sage/html/en/reference/sage/libs/gap/gap.html]]
 * Code cleanup
 * Use libtool to build shared library (Volker)
 * remove hardcoded input/output buffer sizes
 * trap GAP errors (Dima, Volker)
 * Test on various platforms, OSX needs work (Ivan Andrus)
 * Implement GAP List and rec

== Riemann Theta Functions and Algebraic Curves ==

PEOPLE: Chris Swierczewski, Simon Spicer

 * Trac ticket [[http://trac.sagemath.org/sage_trac/ticket/6371|#6371]] (almost done by Chris Swierczewski)
 * Use non-GSL_BLAS for computing finite sum for Riemann theta. (Chris)
 * For better performance, determine eccentricity of bounding ellipsoid and apply Siegel transformation.
 * Riemann Matrices: (prerequisites)
   * Resultants over polynomial rings [[http://trac.sagemath.org/sage_trac/ticket/10799|#10799]] (positive review)
   * Singularities of algebraic curves (elements of polynomial rings over two vars?)
   * Puiseux series. Dependent on Dirichlet series. (Simon)

Sage Days 29 Coding Sprint Projects

For the main SD 29 wiki page go here

Below a list of proposed projects.

Bug Days Challenges

The sponsor of the bug-fixing days part of this workshop has the following high-priority challenges for us. It would be great if we could resolve them all.

PEOPLE: Maarten Derickx, William Stein, Martin Raum

Binary quadratic forms

PEOPLE: Justin Walker

  • 4120 Make progress on getting this patch to pass muster

Number Theory/Elliptic Curves

PEOPLE: Justin Walker, Gagan Sekhon, William Stein, Rado Kirov, John Cremona, Aly Deines, Jen Balakrishnan, Jamie Weigandt

  • 10973 Integer points for curves over number fields: Import Nook/Cremona/Kirov/Anderson code into Sage

  • 10832 Bug in simon_two_descent() (positively reviewed -- Weigandt)

  • 10745 Bug in Elliptic curves gens()

  • 10581 Change Large Cremona Database to mongodb format and extend it.

  • 10152 Bug in integral_points (for elliptic curves over Q)

  • 9371 2-torsion rank over arbitrary fields

Descent

PEOPLE: Jamie Weigandt, Robert Miller, John Cremona, William Stein, Justin Walker

Convert GP scripts in data/extcode/pari to pari library interface

PEOPLE: John Cremona, William Stein, Jamie Weigandt

Exact and Double Dense (RDF/CDF) Linear Algebra

PEOPLE: Rob Beezer, John Palmieri

  • 10752 make pivots of matrices immutable (positive review)

  • 4983 subdivision attibute is public (positive review)

  • 10595 vector constructor and complex numbers (positive review)

  • 7392 rank of CDF/RDF matrices

  • 10974 matrix stack(), augment() methods

  • Wrap NumPy/SciPy Schur factorization, linear system solving routines

Many patches needing review at http://wiki.sagemath.org/devel/LatexToWorksheet

Python 3

IPython activity

PEOPLE: Fernando Perez, Min Ragan-Kelley, Thomas Kluyver

Issues Identified

  • 291 Rename special display methods and put them lower in priority then display functions

  • 296 Automatic PDB via %pdb doesn't work

  • 297 Shouldn't use pexpect for subprocesses in in-process terminal frontend

matplotlib activity

PEOPLE: Michael Droettboom, Paul Ivanov

alt Team Scrappies in all their glory! alt The winning sheet

Algebraic Curves / Function Fields

PEOPLE: Moritz Minzlaff, Maarten Derickx, William Stein, Rado Kirov

Picking up things where Sage Days 21 left them.

  • positive review: 9053 fixes row echelon form over general PIDs

  • positive review: 9094 is_square and sqrt for polynomials and fraction fields

  • 9054 create a class for basic function_field arithmetic for Sage

Sage Notebook (Server)

PEOPLE: William Stein, Rado Kirov, Alex Leone, Rob Beezer, Jason Grout

libGAP

PEOPLE: Volker Braun, (Dmitrii Pasechnik), Ivan Andrus

Riemann Theta Functions and Algebraic Curves

PEOPLE: Chris Swierczewski, Simon Spicer

  • Trac ticket #6371 (almost done by Chris Swierczewski)

  • Use non-GSL_BLAS for computing finite sum for Riemann theta. (Chris)
  • For better performance, determine eccentricity of bounding ellipsoid and apply Siegel transformation.
  • Riemann Matrices: (prerequisites)
    • Resultants over polynomial rings #10799 (positive review)

    • Singularities of algebraic curves (elements of polynomial rings over two vars?)
    • Puiseux series. Dependent on Dirichlet series. (Simon)

days29/projects (last edited 2011-03-26 09:19:39 by robertwb)