Opened 9 years ago
Last modified 5 years ago
#7577 needs_info enhancement
move multivariate polynomials over RR to libsingular
Reported by: | malb | Owned by: | malb |
---|---|---|---|
Priority: | major | Milestone: | sage-6.4 |
Component: | commutative algebra | Keywords: | |
Cc: | burcin, nchoen | Merged in: | |
Authors: | Martin Albrecht | Reviewers: | |
Report Upstream: | N/A | Work issues: | |
Branch: | Commit: | ||
Dependencies: | Stopgaps: |
Description
Singular supports real numbers as 'base field', we only need to implement the conversion routines.
Attachments (2)
Change History (12)
Changed 9 years ago by
comment:1 Changed 9 years ago by
comment:2 Changed 9 years ago by
- Status changed from new to needs_work
I get the following failures with this patch:
sage -t devel/sage-main/sage/matrix/matrix_sparse.pyx # 1 doctests failed sage -t devel/sage-main/sage/calculus/desolvers.py # Segfault sage -t devel/sage-main/sage/rings/polynomial/multi_polynomial.pyx # 2 doctests failed sage -t devel/sage-main/sage/matrix/matrix_mpolynomial_dense.pyx # 2 doctests failed
comment:3 Changed 9 years ago by
On what kind of machine?
comment:4 Changed 9 years ago by
On sage.math. This is with the new Singular spkg from 7194.
comment:5 Changed 9 years ago by
I can reproduce
sage -t devel/sage-main/sage/matrix/matrix_sparse.pyx # 1 doctests failed sage -t devel/sage-main/sage/calculus/desolvers.py # Segfault sage -t devel/sage-main/sage/matrix/matrix_mpolynomial_dense.pyx # 2 doctests failed
but not
sage -t devel/sage-main/sage/rings/polynomial/multi_polynomial.pyx # 2 doctests failed
I am attaching a fix for the failures I can reproduce.
comment:6 Changed 9 years ago by
- Status changed from needs_work to needs_info
There is another issue: Singular uses MPF instead of MPFR to implement floating point numbers. Thus, we get less assurance about the precision with this new patch.
Changed 9 years ago by
comment:7 Changed 6 years ago by
- Milestone changed from sage-5.11 to sage-5.12
comment:8 Changed 5 years ago by
- Milestone changed from sage-6.1 to sage-6.2
comment:9 Changed 5 years ago by
- Milestone changed from sage-6.2 to sage-6.3
comment:10 Changed 5 years ago by
- Milestone changed from sage-6.3 to sage-6.4
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I am CCing burcin because he knows libSingular and I am CCing ncohen because I wrote this patch in order to speed up the linear programming interface.