Ticket #1100 (closed defect: fixed)

Opened 6 years ago

Last modified 6 years ago

[with patch] polynomial roots() method can return rational roots for polynomials over ZZ

Reported by: cwitty Owned by: cwitty
Priority: major Milestone: sage-2.8.12
Component: basic arithmetic Keywords:
Cc: Work issues:
Report Upstream: Reviewers:
Authors: Merged in:
Dependencies: Stopgaps:

Description

According to the documentation, .roots() is only supposed to return values from the base ring, so this is a bug: 

sage: x = polygen(ZZ)
sage: f = 2*x-3
sage: f.roots()
[(3/2, 1)]

Attachments

1100.patch Download (2.0 KB) - added by cwitty 6 years ago.

Change History

Changed 6 years ago by cwitty

comment:1 Changed 6 years ago by cwitty

  • Summary changed from polynomial roots() method can return rational roots for polynomials over ZZ to [with patch] polynomial roots() method can return rational roots for polynomials over ZZ

This patch was developed after #995, and may not apply cleanly if the patch from #995 has not yet been applied.

comment:2 Changed 6 years ago by mabshoff

  • Status changed from new to closed
  • Resolution set to fixed

applied to 2.8.12.rc0

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