#19738: inconsistency in what simplify() does on trigonometrics expression
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Reporter: thome | Owner:
Type: defect | Status: new
Priority: minor | Milestone: sage-7.0
Component: symbolics | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: Fixed upstream, in a later | Work issues:
stable release. | Commit:
Branch: | Stopgaps:
Dependencies: |
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Comment (by rws):
However, do you want this?
{{{
File "src/sage/symbolic/expression.pyx", line 10262, in
sage.symbolic.expression.Expression.solve
Failed example:
(z^5 - 1).solve(z)
Expected:
[z == e^(2/5*I*pi), z == e^(4/5*I*pi), z == e^(-4/5*I*pi), z ==
e^(-2/5*I*pi), z == 1]
Got:
[z == 1/4*sqrt(5) + 1/4*I*sqrt(2*sqrt(5) + 10) - 1/4, z ==
-1/4*sqrt(5) + 1/4*I*sqrt(-2*sqrt(5) + 10) - 1/4, z == -1/4*sqrt(5) -
1/4*I*sqrt(-2*sqrt(5) + 10) - 1/4, z == 1/4*sqrt(5) - 1/4*I*sqrt(2*sqrt(5)
+ 10) - 1/4, z == 1]
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/19738#comment:4>
Sage <http://www.sagemath.org>
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