#20895: Computing ordinary models of plane curves
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Reporter: gjorgenson | Owner:
Type: enhancement | Status: new
Priority: minor | Milestone: sage-7.3
Component: algebraic | Resolution:
geometry |
Keywords: gsoc2016 | Merged in:
Authors: Grayson Jorgenson | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/gjorgenson/ticket/20895 | 54a991e606b87e665bef1ea53c229f5a5df265f8
Dependencies: | Stopgaps:
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Comment (by mmarco):
Take a look at the `.as_number_field_element()` method of algebraic
numbers, and the `number_field_elements_from_algebraics`function. They
allow you to get a number field to embed your numbers. So you can proceed
this way: use QQbar just to compute the roots you need. Once done that,
find a number field where everything you need may fit (that is, it should
be an extension of your current field that contains the needed elements),
and extend your base ring. From there, you can keep working in a concrete
number field which should be much faster than QQbar.
--
Ticket URL: <https://trac.sagemath.org/ticket/20895#comment:4>
Sage <http://www.sagemath.org>
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