#20752: Wrong simplification in symbolic trigonometry
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Reporter: tmonteil | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-7.3
Component: porting: Solaris | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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As reported in [http://ask.sagemath.org/question/33623/bug-in-cos-
function-in-version-72/?answer=33624#post-id-33624 this ask question],
Sage makes wrong simplifications in symbolic trigonometry:
{{{
sage: cos(pi+pi*1/42)
cos(1/42*pi)
}}}
While it should be `-cos(1/42*pi)`.
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Ticket URL: <http://trac.sagemath.org/ticket/20752>
Sage <http://www.sagemath.org>
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