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== Exponent overflow ==

'''People:''' Simon

 * Working on the Plural interface, we found that Sage does not raise an overflow error when it should. Example: With `P.<x,y>=QQ[]`, `y^2^30` returns a correct result; in `P.<x,y,z>=QQ[]`, an overflow occurs, but instead of raising an error, `y^2^30` returns zero.

Sage/Singular Days Projects

Update Singular spkg

People: Simon, Burcin, Martin

working on prerelease of Sage-4.7.2.alph3 dated Sept 19, 2012 md5sum: ad021855ae07ecdd1cdcc7b973c9cdba

  • #10903 update Singular

  • #10810 Singular doesn't build on ARM

  • #11769 Singular doesn't build on Ubuntu Oneiric

  • #10902 factorization of multivariate polynomials

Update the Singular interface to work with libpolys

People: Burcin, Oleksandr

  • There were many changes to libSingular as part of the refactoring effort. The Sage interface needs to be adapted to these. This should be a matter of renaming the functions that are called in Sage and adding the current ring as an argument (modulo bugs in libpolys).
  • create spkg for refactored Singular
  • search/replace calls to libSingular in the Sage library to get the interface to compile & link

Refactored Singular should pass it's test suite

People: Burcin, Oleksandr, Hans, Volker

Bug hunt through Singular kernel code. An adventure no hacker can resist.

Compiler warnings

People:

There are lots of compiler warnings...

Plural/SCA

People: Oleksandr

  • Bug hunt at PLURAL/SCA kernel code: (left) std etc...

Try out some dynamic modules

People: Oleksandr

  • Try building & using dynamic modules

Blackbox objects

People: Oleksandr

  • Try building & using blackbox objects, e.g. coefficient domain as a wrapper for coeffs

Interface to Singular's modules

People: Hiep, Burcin, Simon

  • This shouldn't be so hard since libSingular uses the same type for polynomials and module elements

Review Simon's letterplace patches

People: Simon, Burcin, Alexander (offsite)

  • #7797

  • #11115 make cached methods faster - dependency of #7797 (Volker)

Plural interface

People: Burcin, Simon, Alexander (offsite)

Exponent overflow

People: Simon

  • Working on the Plural interface, we found that Sage does not raise an overflow error when it should. Example: With P.<x,y>=QQ[], y^2^30 returns a correct result; in P.<x,y,z>=QQ[], an overflow occurs, but instead of raising an error, y^2^30 returns zero.

Use libpolys for function field arithmetic

People: Burcin

FLINT integration in Singular

People: Fredrik, MartinL, Christian

  • Add missing utility and conversion functions to FLINT
  • Use FLINT in Singular
  • Benchmark against NTL version

Beginner tickets

to practice preparing and submitting patches, for people new to the Sage development process:

  • #8857 lcm over Q[x] broken (not any more)

  • .intersect() method of ideals should allow multiple arguments.

  • add an alias primary_decomposition_complete() -> complete_primary_decomposition() in the ideal class

Fast containers for objects and morphisms of a category

People: Simon

  • See #10667 Morphisms and Objects of Categories

Improve/Review citation library

People: Niels, Burcin, (and somebody else?)

#3317 bitbucket

  • #11851 #11852 split off pybtex package to a separate ticket (submit as an optional package first)

  • Add more examples of citations
  • add sage's citation

  • Open a ticket for matplotlib not to include an extra version of pyparsing.

Fix reference counting of Singular rings

People: Volker, Burcin, Martin

days34/projects (last edited 2011-09-30 08:22:53 by SimonKing)