Opened 9 years ago

Last modified 8 years ago

#13438 closed task

univariate polynomial _xgcd only over fields — at Version 6

Reported by: saraedum Owned by: AlexGhitza
Priority: trivial Milestone: sage-5.12
Component: basic arithmetic Keywords: gcd, xgcd, beginner sd51
Cc: Merged in:
Authors: Julian Rueth Reviewers:
Report Upstream: N/A Work issues:
Branch: Commit:
Dependencies: Stopgaps:

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Description (last modified by saraedum)

sage.rings.polynomial.polynomial_element.Polynomial provides an implementation for _xgcd. This implementation is not correct for polynomials over arbitrary rings. Therefore it should be moved to sage.rings.polynomial.polynomial_element_generic.Polynomial_generic_field.

The way it currently is, doesn't cause any bugs (except for one which already has a stopgap warning) because only elements of a PID call the _xgcd method.

Change History (7)

comment:1 Changed 9 years ago by saraedum

  • Keywords removed

comment:2 Changed 9 years ago by saraedum

  • Description modified (diff)
  • Keywords gcd beginner added

comment:3 Changed 9 years ago by saraedum

  • Authors set to Julian Rueth

comment:4 Changed 9 years ago by saraedum

  • Dependencies set to #13439

comment:5 Changed 9 years ago by saraedum

  • Dependencies #13439 deleted

Changed 9 years ago by saraedum

comment:6 Changed 9 years ago by saraedum

  • Description modified (diff)
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