Opened 3 years ago
Closed 2 years ago
#23135 closed defect (fixed)
Doctest: Conjugate does not distribute over a sum
Reported by:  mforets  Owned by:  

Priority:  major  Milestone:  sage8.0 
Component:  symbolics  Keywords:  assumptions, complex numbers 
Cc:  rws  Merged in:  
Authors:  Ralf Stephan  Reviewers:  Marcelo Forets 
Report Upstream:  N/A  Work issues:  
Branch:  8cef176 (Commits)  Commit:  8cef17614aefcdbd928915e2b39c5111acfa9a3d 
Dependencies:  #23325  Stopgaps: 
Description
sage: x = var('x', domain='real') sage: conjugate(x+I) x + I sage: conjugate(x)+conjugate(I) x  I
(tested on top of #23134)
Reported recently in ask.sagemath, a problem with variables in real domains
Change History (8)
comment:1 Changed 3 years ago by
 Dependencies set to pynac0.7.9
 Report Upstream changed from N/A to Fixed upstream, in a later stable release.
comment:2 followup: ↓ 3 Changed 3 years ago by
So will this problem be solved once SageMath is using pynac master? If so should we close this ticket?
comment:3 in reply to: ↑ 2 Changed 3 years ago by
Replying to hwsmith:
So will this problem be solved once SageMath is using pynac master? If so should we close this ticket?
The dependency on "pynac0.7.9" will be replaced with the Pynac upgrade ticket number after that version was released. This ticket should add doctests for the issue. Usually its title is then prepended with "Doctest:" to give a hint to potential reviewers.
comment:4 Changed 2 years ago by
 Dependencies changed from pynac0.7.9 to #23325
 Report Upstream changed from Fixed upstream, in a later stable release. to N/A
comment:5 Changed 2 years ago by
 Branch set to u/rws/conjugate_does_not_distribute_over_a_sum
comment:6 Changed 2 years ago by
 Commit set to 8cef17614aefcdbd928915e2b39c5111acfa9a3d
 Status changed from new to needs_review
 Summary changed from Conjugate does not distribute over a sum to Doctest: Conjugate does not distribute over a sum
New commits:
8cef176  23135: Doctest: Conjugate does not distribute over a sum

comment:7 Changed 2 years ago by
 Reviewers set to Marcelo Forets
 Status changed from needs_review to positive_review
reviewed. thank you for fixing this!
comment:8 Changed 2 years ago by
 Branch changed from u/rws/conjugate_does_not_distribute_over_a_sum to 8cef17614aefcdbd928915e2b39c5111acfa9a3d
 Resolution set to fixed
 Status changed from positive_review to closed
A rarely visited part of the Pynac code tried to be too smart. Fixed in pynac master.