#10222: Bernoulli polynomial problem
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Reporter: davidloeffler | Owner: malb
Type: defect | Status: needs_review
Priority: minor | Milestone: sage-4.6.1
Component: commutative algebra | Keywords: bernoulli
Author: Francis Clarke | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Changes (by newvalueoldvalue):
* cc: craigcitro (added)
* status: new => needs_review
* author: => Francis Clarke
Comment:
In the attached patch I have rewritten most of the !`bernoulli_polynomial`
code. This solves this problem.
In the case where the result is a polynomial, direct calculation from the
list of coefficients is retained (for speed), but corrected for the case
where x is not the variable. This only works when the base ring is a QQ-
algebra; previously an error was raised it if wasn't.
A small increase in speed results from the odd Bernoulli numbers being
zero, apart from the first. This is more significant in the non-
polynomial case.
A couple of new doctests have been added.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10222#comment:1>
Sage <http://www.sagemath.org>
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