#19423: AsymptoticExpansion: combine shared code of invert, log, exp
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Reporter: dkrenn | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.10
Component: asymptotic | Resolution:
expansions | Merged in:
Keywords: | Reviewers:
Authors: Daniel Krenn | Work issues:
Report Upstream: N/A | Commit:
Branch: | 84568cf4a0f89cbf3bfe22e6fd2ed279c08f4831
u/dkrenn/asy/exploginv_taylor | Stopgaps:
Dependencies: |
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Changes (by {'newvalue': u'Daniel Krenn', 'oldvalue': ''}):
* status: new => needs_review
* commit: => 84568cf4a0f89cbf3bfe22e6fd2ed279c08f4831
* author: => Daniel Krenn
Old description:
> From #19083, comment 66, 33:
> > I think that there is shared code between `__invert__`, `__log__`,
> `__exp__` and powers with rational exponents. In all those cases, it is
> important to split into main term and renormalized remainder. The main
> term is then processed according to the respective method, the remainder
> is inserted into a converging taylor series with certain coefficients
> (this could be handeled by one method getting the sequence of taylor
> coefficients as an argument).
New description:
From #19083, comment 66, 33:
> I think that there is shared code between `__invert__`, `__log__`,
`__exp__` and powers with rational exponents (#19316). In all those cases,
it is important to split into main term and renormalized remainder. The
main term is then processed according to the respective method, the
remainder is inserted into a converging taylor series with certain
coefficients (this could be handeled by one method getting the sequence of
taylor coefficients as an argument).
--
Comment:
New commits:
||[http://git.sagemath.org/sage.git/commit/?id=2e35be6645a78f21f032ce7c3a42837fc8ca0e10
2e35be6]||{{{Trac #19423: helper-method for computing taylor series}}}||
||[http://git.sagemath.org/sage.git/commit/?id=cd99cbc86d493b276d49d8b7069af9b3f77ee435
cd99cbc]||{{{Trac #19423: use new _taylor_ method in existing methods}}}||
||[http://git.sagemath.org/sage.git/commit/?id=84568cf4a0f89cbf3bfe22e6fd2ed279c08f4831
84568cf]||{{{Trac #19423: two code simplifications}}}||
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Ticket URL: <http://trac.sagemath.org/ticket/19423#comment:3>
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