#10963: More functorial constructions
-------------------------------------+-------------------------------------
Reporter: nthiery | Owner: stumpc5
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-6.1
Component: categories | Resolution:
Keywords: days54 | Merged in:
Authors: Nicolas M. Thiéry | Reviewers: Simon King, Frédéric
Report Upstream: N/A | Chapoton
Branch: | Work issues: analyse and fix
public/ticket/10963 | timeouts
Dependencies: #11224, #8327, | Commit:
#10193, #12895, #14516, #14722, | 9dcafa54b452ffe8a340663ed38087ed7c2d8a4d
#13589, #14471, #15069, #15094, | Stopgaps:
#11688, #13394, #15150, #15506 |
-------------------------------------+-------------------------------------
Comment (by SimonKing):
Note: Without merging develop, I'd get
{{{
sage: %time integral(exp(x + x^2)/(x+1), x)
CPU times: user 2.11 s, sys: 0.06 s, total: 2.18 s
Wall time: 2.26 s
integrate(e^(x^2 + x)/(x + 1), x)
sage: %time ascii_art(integral(exp(x + x^2)/(x+1), x))
CPU times: user 24.33 s, sys: 0.10 s, total: 24.43 s
Wall time: 24.83 s
/
|
| 2
| x + x
| e
| ------- dx
| x + 1
|
/
}}}
This is bad enough. I mean, why does it take more than 20 seconds to
computer the ascii art representation of this integral?
And the question is: How can '''categories''' make ascii art and
integration so dog slow? Are categories even used there??
--
Ticket URL: <http://trac.sagemath.org/ticket/10963#comment:291>
Sage <http://www.sagemath.org>
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