#18787: symbolic modular integers still broken
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Reporter: tmonteil | Owner:
Type: defect | Status: needs_work
Priority: major | Milestone: sage-6.9
Component: symbolics | Resolution:
Keywords: | Merged in:
Authors: Ralf Stephan | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/rws/bug_with_products_of_symbolic_variables_with_modular_integers|
6f9e551e2110aa700b29eee6f379ec93890d7ba8
Dependencies: | Stopgaps:
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Comment (by rws):
Replying to [comment:27 vdelecroix]:
> What about the following (inspired from [comment:6 comment:6]
> {{{
> sage: f(x) = Zmod(7)(3) * x**2 + Zmod(9)(3) * x**3
> sage: f(1)
> ** BOOM **
> }}}
> while
> {{{
> sage: f(x) = Zmod(7)(1) * x**2 + Zmod(9)(1) * x**3
> sage: f(1)
> 2
> }}}
This both now gives a `TypeError` in pynac master, equivalently to
`GF(7)(1) + GF(9)(1)` and `GF(7)(3) + GF(9)(3)`.
The ticket should doctest this as soon as pynac is upgraded to 0.6.5
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Ticket URL: <http://trac.sagemath.org/ticket/18787#comment:30>
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