Opened 16 months ago
Closed 16 months ago
#31679 closed defect (fixed)
Actually fix: "Do not use pynac's poly_mul_expand function until it has been debugged"
Reported by: | mkoeppe | Owned by: | |
---|---|---|---|
Priority: | blocker | Milestone: | sage-9.3 |
Component: | symbolics | Keywords: | |
Cc: | gh-DaveWitteMorris | Merged in: | |
Authors: | Dave Morris | Reviewers: | Matthias Koeppe |
Report Upstream: | N/A | Work issues: | |
Branch: | 2b88eb5 (Commits, GitHub, GitLab) | Commit: | 2b88eb58753e1daeacd38de84ab5e03c2a9d9ca0 |
Dependencies: | Stopgaps: |
Description
#31479 with this title was merged in 9.3.rc3 but its branch contained something else.
Change History (9)
comment:1 Changed 16 months ago by
- Reviewers set to Matthias Koeppe
comment:2 Changed 16 months ago by
- Status changed from new to needs_review
comment:3 Changed 16 months ago by
- Status changed from needs_review to positive_review
comment:4 Changed 16 months ago by
- Status changed from positive_review to needs_work
comment:5 Changed 16 months ago by
I don't have time to push a branch until tomorrow, but I think that (for 9.3) we can solve the problem by weakening the doctest so that it works for both 64-bit and 32-bit. Maybe:
sage: a,b,c,d = var("a b c d") sage: f = ((a + b + c)^30 * (3*b + d - 5/d)^3).expand().subs(a=0,b=2,c=-1) sage: sum(sign(s) * (abs(ZZ(s)) % ZZ(2^20)) * d^i for s,i in f.coefficients()) d^3 + 18*d^2 + 93*d - 465/d + 450/d^2 - 125/d^3 + 36
comment:6 Changed 16 months ago by
- Commit changed from 296d4c76c67df66e7d8d1deb45a9dcda1ef5c327 to 2b88eb58753e1daeacd38de84ab5e03c2a9d9ca0
comment:7 Changed 16 months ago by
- Status changed from needs_work to needs_review
comment:8 Changed 16 months ago by
- Status changed from needs_review to positive_review
This doctest looks a bit strange, but overall this is good enough as a hotfix for 9.3 for this severe bug.
comment:9 Changed 16 months ago by
- Branch changed from public/31554 to 2b88eb58753e1daeacd38de84ab5e03c2a9d9ca0
- Resolution set to fixed
- Status changed from positive_review to closed
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