#10519: analytic combinatorics: new code for computing asymptotics for
multivariate
generating functions
-------------------------------------+-------------------------------------
Reporter: araichev | Owner: sage-combinat
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-7.1
Component: combinatorics | Resolution:
Keywords: analytic | Merged in:
combinatorics, multivariate | Reviewers: Daniel Krenn, David
generating functions, asymptotics | Loeffler, Travis Scrimshaw
Authors: Daniel Krenn, | Work issues:
Alex Raichev | Commit:
Report Upstream: N/A | a30a18a230a1f77fac00e636b779df8f571eda62
Branch: | Stopgaps:
public/combinat/10519 |
Dependencies: |
-------------------------------------+-------------------------------------
Changes (by vbraun):
* status: positive_review => needs_work
Comment:
There are some tests that depend on ordering of symbolic variables:
{{{
sage -t --long
src/sage/rings/asymptotic/asymptotics_multivariate_generating_functions.py
**********************************************************************
File
"src/sage/rings/asymptotic/asymptotics_multivariate_generating_functions.py",
line 98, in
sage.rings.asymptotic.asymptotics_multivariate_generating_functions
Failed example:
s
Expected:
[{y: 1, x: 1}]
Got:
[{x: 1, y: 1}]
**********************************************************************
File
"src/sage/rings/asymptotic/asymptotics_multivariate_generating_functions.py",
line 2828, in
sage.rings.asymptotic.asymptotics_multivariate_generating_functions.FractionWithFactoredDenominator.smooth_critical_ideal
Failed example:
F.smooth_critical_ideal(alpha)
Expected:
Ideal (y^2 + 2*a1/a2*y - 1, x + ((-a2)/a1)*y + (-a1 + a2)/a1) of
Multivariate Polynomial Ring in x, y over Fraction Field of
Multivariate Polynomial Ring in a1, a2 over Rational Field
Got:
Ideal (y^2 + 2*a1/a2*y - 1, x + ((-a2)/a1)*y + (a2 - a1)/a1) of
Multivariate Polynomial Ring in x, y over Fraction Field of Multivariate
Polynomial Ring in a2, a1 over Rational Field
**********************************************************************
File
"src/sage/rings/asymptotic/asymptotics_multivariate_generating_functions.py",
line 4373, in
sage.rings.asymptotic.asymptotics_multivariate_generating_functions.coerce_point
Failed example:
p
Expected:
{y: 7/8, x: 1}
Got:
{x: 1, y: 7/8}
**********************************************************************
File
"src/sage/rings/asymptotic/asymptotics_multivariate_generating_functions.py",
line 4375, in
sage.rings.asymptotic.asymptotics_multivariate_generating_functions.coerce_point
Failed example:
for k in sorted(p.keys()):
print k, k.parent()
Expected:
y Symbolic Ring
x Symbolic Ring
Got:
x Symbolic Ring
y Symbolic Ring
**********************************************************************
3 items had failures:
1 of 77 in
sage.rings.asymptotic.asymptotics_multivariate_generating_functions
1 of 16 in
sage.rings.asymptotic.asymptotics_multivariate_generating_functions.FractionWithFactoredDenominator.smooth_critical_ideal
2 of 11 in
sage.rings.asymptotic.asymptotics_multivariate_generating_functions.coerce_point
[809 tests, 4 failures, 74.86 s]
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/10519#comment:127>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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