Opened 9 years ago
Last modified 4 years ago
#10086 new defect
Coercion works incorrectly for power series over power series
Reported by: | schilly | Owned by: | sage-combinat |
---|---|---|---|
Priority: | major | Milestone: | sage-6.4 |
Component: | combinatorics | Keywords: | LazyPowerSeries |
Cc: | axel.bacher@…, mhansen, mantepse | Merged in: | |
Authors: | Reviewers: | ||
Report Upstream: | N/A | Work issues: | |
Branch: | Commit: | ||
Dependencies: | Stopgaps: | todo |
Description (last modified by )
This was reported via the "Report a Problem" link:
When I try the following:
S1 = LazyPowerSeriesRing(ZZ) S2 = LazyPowerSeriesRing(S1) t = S1.term(1, 1) # same results with t = S1.gen() tt = S2(t) tt.coefficient(0)
this yields 0. Trying
tt.aorder
I get 1.
The series tt is the series with constant term equal to t, so its order should be zero and its 0th coefficient should be t.
Change History (9)
comment:1 Changed 9 years ago by
- Cc mhansen added
- Component changed from symbolics to combinatorics
- Owner changed from burcin to sage-combinat
comment:2 Changed 6 years ago by
- Milestone changed from sage-5.11 to sage-5.12
comment:3 Changed 5 years ago by
- Cc mantepse added
- Keywords LazyPowerSeries added
comment:4 Changed 5 years ago by
comment:5 Changed 5 years ago by
- Milestone changed from sage-6.1 to sage-6.2
comment:6 Changed 5 years ago by
- Milestone changed from sage-6.2 to sage-6.3
comment:7 Changed 5 years ago by
- Milestone changed from sage-6.3 to sage-6.4
comment:8 Changed 4 years ago by
- Stopgaps set to todo
comment:9 Changed 4 years ago by
- Description modified (diff)
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A fix is in #15673