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= Sage Days 29 Coding Spring Projects = = Sage Days 29 Coding Sprint Projects =
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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)]]
  * [[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]]
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PEOPLE: Maarten Derickx PEOPLE: Maarten Derickx, William Stein
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 * #10548 ModularSymbols_clear_cache() not clearing everything
 * #10510 ModularSymbols(Gamma1(29), 2).cuspidal_subspace().hecke_algebra().basis() doesn't terminate
 * #10262 memory leak in scalar*vector multiplication		  * [[http://trac.sagemath.org/sage_trac/ticket/10548|10548]] !ModularSymbols_clear_cache() not clearing everything
 * [[http://trac.sagemath.org/sage_trac/ticket/10510|10510]] !ModularSymbols(Gamma1(29), 2).cuspidal_subspace().hecke_algebra().basis() doesn't terminate
 * [[http://trac.sagemath.org/sage_trac/ticket/10262|10262]] memory leak in scalar*vector multiplication
 * [[http://trac.sagemath.org/sage_trac/ticket/8998|8998]] galois_action on cusps has a bug
 * [[http://trac.sagemath.org/sage_trac/ticket/9526|9526]] Atkin-Lehner operators on modular abelian varieties

== Binary quadratic forms ==
PEOPLE: Justin Walker
 * [[http://trac.sagemath.org/sage_trac/ticket/4120|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
 * [[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() -- patch exists, needs very little work
 * [[http://trac.sagemath.org/sage_trac/ticket/10745|10745]] Bug in Elliptic curves gens()
 * [[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/10152|10152]] Bug in integral_points (for elliptic curves over Q)
 * [[http://trac.sagemath.org/sage_trac/ticket/10973|10973]] integral_ points over Number fields

== Descent ==

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

  * 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

== Exact and Double Dense (RDF/CDF) Linear Algebra ==

PEOPLE: Rob Beezer

  * [[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/7392|7392]] rank of CDF/RDF matrices
  * Duplicate [[http://trac.sagemath.org/sage_trac/ticket/10424|10424]] for matrix stack() method
  * Wrap `NumPy/SciPy` Schur factorization, linear system solving routines

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

== IPython activity ==

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

 * SQLite based history ([[https://github.com/ipython/ipython/pull/282|Pull request]])

== matplotlib activity ==

PEOPLE: Michael Droettboom

 * Fix memory leaks in Nose so that matplotlib's unit tests can be run on modest hardware with Python 3.x
 * See status of matplotlib on Python 3.x here [[https://github.com/matplotlib/matplotlib-py3/wiki]]

Sage Days 29 Coding Sprint Projects

Contents

  1. Sage Days 29 Coding Sprint Projects
    1. Bug Days Challenges
    2. Fixing modular form/symbols related bugs and the linear algebra it uses
    3. Binary quadratic forms
    4. Number Theory/Elliptic Curves
    5. Descent
    6. Convert GP scripts in data/extcode/pari to pari library interface
    7. Exact and Double Dense (RDF/CDF) Linear Algebra
    8. IPython activity
    9. matplotlib activity

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

  • 10548 ModularSymbols_clear_cache() not clearing everything

  • 10510 ModularSymbols(Gamma1(29), 2).cuspidal_subspace().hecke_algebra().basis() doesn't terminate

  • 10262 memory leak in scalar*vector multiplication

  • 8998 galois_action on cusps has a bug

  • 9526 Atkin-Lehner operators on modular abelian varieties

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() -- patch exists, needs very little work

  • 10745 Bug in Elliptic curves gens()

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

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

  • 10973 integral_ points over Number 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

  • 10752 make pivots of matrices immutable

  • 4983 subdivision attibute is public

  • 10595 vector constructor and complex numbers

  • 7392 rank of CDF/RDF matrices

  • Duplicate 10424 for matrix stack() method

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

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

IPython activity

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

matplotlib activity

PEOPLE: Michael Droettboom

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