Opened 8 years ago

Last modified 4 years ago

#13059 new defect

Creating multivariate polynomial rings change singular's global state

Reported by: roed Owned by: malb
Priority: minor Milestone: sage-6.4
Component: commutative algebra Keywords:
Cc: jpflori, jakobkroeker Merged in:
Authors: Reviewers:
Report Upstream: N/A Work issues:
Branch: Commit:
Dependencies: Stopgaps:

Description

The following seems bad. It was revealed by the change in doctest framework at #12415. That ticket introduces a workaround (just resetting opt['red_tail'] to True). 

sage: from sage.libs.singular.option import opt
sage: opt['red_tail']
True
sage: Rlocal.<x,y,z> = PolynomialRing(QQ, order='ds')
sage: opt['red_tail']
False

Change History (7)

comment:1 Changed 8 years ago by roed

J.groebner_basis(mult_bound=100) also resets opt['red_tail'], but J.groebner_basis() doesn't.

comment:2 Changed 7 years ago by jdemeyer

  • Milestone changed from sage-5.11 to sage-5.12

comment:3 Changed 6 years ago by vbraun_spam

  • Milestone changed from sage-6.1 to sage-6.2

comment:4 Changed 6 years ago by vbraun_spam

  • Milestone changed from sage-6.2 to sage-6.3

comment:5 Changed 6 years ago by vbraun_spam

  • Milestone changed from sage-6.3 to sage-6.4

comment:6 Changed 5 years ago by jpflori

  • Cc jpflori added

comment:7 Changed 4 years ago by jakobkroeker

  • Cc jakobkroeker added
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