#11231: Sparse and dense polynomials hash differently, but are equal.
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Reporter: robertwb | Owner: jason
Type: defect | Status: needs_review
Priority: major | Milestone: sage-duplicate/invalid/wontfix
Component: misc | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Changes (by tscrim):
* status: new => needs_review
* milestone: => sage-duplicate/invalid/wontfix
Comment:
In `5.5.rc0`, I get the following:
{{{
sage: R = PolynomialRing(ZZ, 'x', sparse=False)
sage: S = PolynomialRing(ZZ, 'x', sparse=True)
sage: R
Univariate Polynomial Ring in x over Integer Ring
sage: S
Sparse Univariate Polynomial Ring in x over Integer Ring
sage: R == S
False
sage: hash(R) == hash(S) # on a 32-bit VM
True
}}}
However this isn't a problem.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11231#comment:1>
Sage <http://www.sagemath.org>
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