#20453: wrong conversion from symbolic to SR[]
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Reporter: rws | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-7.2
Component: symbolics | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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As long as generator and variable names can be associated there should not
be a problem to convert from a symbolic expression to a univariate
polynomial with symbolic coefficients, but:
{{{
sage: S.<y> = PolynomialRing(SR)
sage: y = SR.var('y')
sage: p = S(y^2 + pi*y + 1)
sage: p.coefficients()
[pi*y + y^2 + 1]
}}}
(Should be `[1, pi, 1]`).
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Ticket URL: <http://trac.sagemath.org/ticket/20453>
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