Opened 7 years ago
Last modified 4 years ago
#13999 new defect
Ideal membership for univariate polynomial
Reported by: | hivert | Owned by: | AlexGhitza |
---|---|---|---|
Priority: | major | Milestone: | sage-6.4 |
Component: | algebra | Keywords: | Ideal, univariate polynomial |
Cc: | jakobkroeker | Merged in: | |
Authors: | Reviewers: | ||
Report Upstream: | N/A | Work issues: | |
Branch: | Commit: | ||
Dependencies: | Stopgaps: | wrongAnswerMarker |
Description (last modified by )
sage: R.<x> = PolynomialRing(ZZ) sage: p, q = 4 + 3*x + x^2, 1 + x^2 sage: I = R.ideal([p, q]) sage: S = R.quotient_ring(I) sage: S(p) == S(0) False
This is plain wrong !
sage: p in I --------------------------------------------------------------------------- NotImplementedError Traceback (most recent call last) /tmp/<ipython console> in <module>() /home/data/Sage-Install/sage-5.6.rc1/local/lib/python2.7/site-packages/sage/rings/ideal.pyc in __contains__(self, x) 316 def __contains__(self, x): 317 try: --> 318 return self._contains_(self.__ring(x)) 319 except TypeError: 320 return False /home/data/Sage-Install/sage-5.6.rc1/local/lib/python2.7/site-packages/sage/rings/ideal.pyc in _contains_(self, x) 322 def _contains_(self, x): 323 # check if x, which is assumed to be in the ambient ring, is actually in this ideal. --> 324 raise NotImplementedError 325 326 def __nonzero__(self): NotImplementedError:
Florent
Change History (8)
comment:1 Changed 7 years ago by
- Description modified (diff)
comment:2 Changed 7 years ago by
comment:3 Changed 7 years ago by
- Milestone changed from sage-5.11 to sage-5.12
comment:4 Changed 6 years ago by
- Milestone changed from sage-6.1 to sage-6.2
comment:5 Changed 6 years ago by
- Milestone changed from sage-6.2 to sage-6.3
comment:6 Changed 6 years ago by
- Milestone changed from sage-6.3 to sage-6.4
comment:7 Changed 4 years ago by
- Cc jakobkroeker added
comment:8 Changed 4 years ago by
- Stopgaps set to wrongAnswerMarker
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I left a todo in #12510 deactivating some generic tests (
TestSuite
) inThose generic test should be reinstated when this ticket is fixed.
Florent