#12121: floor/ceil can be very slow at integral values
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Reporter: dsm | Owner: AlexGhitza
Type: | Status: needs_work
defect | Milestone: sage-7.2
Priority: major | Resolution:
Component: basic | Merged in:
arithmetic | Reviewers: Marc Mezzarobba
Keywords: | Work issues:
Authors: | Commit:
Vincent Delecroix | 9bd70406da71c6e1083fc25cd57435788689018e
Report Upstream: N/A | Stopgaps:
Branch: |
public/12121 |
Dependencies: |
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Changes (by rws):
* commit: 602e5158c5f37c6900a1dee8e27a228114af1319 =>
9bd70406da71c6e1083fc25cd57435788689018e
Comment:
Replying to [comment:50 nbruin]:
> You may be interested in #20624. It looks like implementing `_evalf_` by
calling `_eval_` is VERY bad: currently evaluation of `ceil` may lead to
running out the python call stack before doing anything useful.
I may be mistaken but actually `_eval_` calls `_evalf_` here which is a
completely different matter.
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New commits:
||[http://git.sagemath.org/sage.git/commit/?id=9bd70406da71c6e1083fc25cd57435788689018e
9bd7040]||{{{Merge branch 'develop' into t/12121/12121}}}||
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Ticket URL: <http://trac.sagemath.org/ticket/12121#comment:53>
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