#12417: extend partial_fraction_decomposition() to work on ratios of
multivariate
polynomials
---------------------------+------------------------------------------------
Reporter: araichev | Owner: nthiery
Type: enhancement | Status: new
Priority: major | Milestone: sage-5.0
Component: categories | Keywords: partial fraction decomposition
multivariate polynomial ring
Work_issues: | Upstream: N/A
Reviewer: | Author: Alex Raichev
Merged: | Dependencies:
---------------------------+------------------------------------------------
Comment(by malb):
{{{
diff --git a/sage/categories/quotient_fields.py
b/sage/categories/quotient_fields.py
--- a/sage/categories/quotient_fields.py
+++ b/sage/categories/quotient_fields.py
@@ -1052,8 +1052,8 @@
- Alex Raichev (2011-01-10)
"""
- from sage.structure.sequence import *
- from sage.rings.polynomial.polynomial_ring_constructor import *
+ from sage.structure.sequence import Sequence
+ from sage.rings.polynomial.polynomial_ring_constructor import
PolynomialRing
parts = REFDSum([])
R = self.base_ring()
@@ -1195,4 +1195,4 @@
if done_decomposing:
return parts
else:
- return parts.decompose_via_nullstellensatz()
\ No newline at end of file
+ return parts.decompose_via_nullstellensatz()
diff --git a/sage/rings/polynomial/multi_polynomial_sequence.py
b/sage/rings/polynomial/multi_polynomial_sequence.py
--- a/sage/rings/polynomial/multi_polynomial_sequence.py
+++ b/sage/rings/polynomial/multi_polynomial_sequence.py
@@ -159,6 +159,7 @@
from sage.rings.polynomial.multi_polynomial_ideal import MPolynomialIdeal
from sage.rings.polynomial.multi_polynomial import is_MPolynomial
from sage.structure.sequence import Sequence_generic
+from sage.rings.polynomial.polynomial_ring_constructor import
PolynomialRing
from sage.interfaces.singular import singular
}}}
gets you further. There was indeed an import missing, I wonder why we
didn't catch this before?
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12417#comment:2>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/sage-trac?hl=en.
