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Two bugs of sparse polynomials with interval coefficients #18069

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mezzarobba opened this issue Mar 27, 2015 · 7 comments
Closed

Two bugs of sparse polynomials with interval coefficients #18069

mezzarobba opened this issue Mar 27, 2015 · 7 comments
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c: algebra p: major / 3 t: bug
Milestone
sage-6.6

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@mezzarobba
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A bug affecting their creation from a coefficient list:

sage: pol = PolynomialRing(RIF, 'z', sparse=True)([RIF(-1, 1), RIF(-1,1)])
sage: pol.degree()
-1

and a related printing bug:

sage: pol = PolynomialRing(RIF, 'z', sparse=True)(RIF['x']([RIF(-1, 1), RIF(-1,1)]))
sage: pol.degree()
1
sage: pol
0

Component: algebra

Author: Marc Mezzarobba

Branch/Commit: c492cad

Reviewer: Jeroen Demeyer

Issue created by migration from https://trac.sagemath.org/ticket/18069
@mezzarobba mezzarobba added this to the sage-6.6 milestone Mar 27, 2015
@mezzarobba
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Commit: c492cad

@mezzarobba
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Branch: u/mmezzarobba/18069-sparse_interval_polys

@mezzarobba
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New commits:

c492cad#18069 Fix two incorrect zero tests in sparse polynomials

@mezzarobba
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Author: Marc Mezzarobba

@jdemeyer
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Reviewer: Jeroen Demeyer

@mezzarobba
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comment:3

Thanks!

@vbraun
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vbraun commented Apr 14, 2015

Changed branch from u/mmezzarobba/18069-sparse_interval_polys to c492cad

@vbraun vbraun closed this as completed in 900eee3 Apr 14, 2015
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c: algebra p: major / 3 t: bug
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