#9787: lagrange_polynomial(algorithm='divided_difference') fails over finite
fields
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Reporter: mmezzarobba | Owner: AlexGhitza
Type: defect | Status: needs_review
Priority: minor | Milestone: sage-6.4
Component: algebra | Resolution:
Keywords: | Merged in:
Authors: Peter Bruin | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/pbruin/9787-lagrange_polynomial | 57f432cfe194c56c1b258a2d37046d67b15b82ab
Dependencies: | Stopgaps:
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Changes (by {'newvalue': u'Peter Bruin', 'oldvalue': ''}):
* status: needs_work => needs_review
* commit: => 57f432cfe194c56c1b258a2d37046d67b15b82ab
* branch: => u/pbruin/9787-lagrange_polynomial
* author: => Peter Bruin
Comment:
Here is a branch that should fix the bug. The only changes to the code
are a few extra coercions (and one conversion, for reasons explained in a
comment) to make sure everything lives in the right parent. A few
doctests had to be fixed because they started with the wrong base ring
(`QQ` vs. `RR`) for the given input and output. The other changes are
documentation improvements.
--
Ticket URL: <http://trac.sagemath.org/ticket/9787#comment:8>
Sage <http://www.sagemath.org>
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