#13304: Very inefficient scalar multiplication on FreeModule_ambient with
somewhat
large rank
-------------------------------------+-------------------------------------
Reporter: daniels | Owner: daniels
Type: defect | Status: needs_work
Priority: major | Milestone: sage-6.4
Component: linear algebra | Resolution:
Keywords: | Merged in:
Authors: Daniel Smertnig, | Reviewers: Vincent Delecroix
Marc Mezzarobba | Work issues: add doctest
Report Upstream: N/A | Commit:
Branch: | 8f09d5198e060add5dea75ed240739f6485ba8ce
public/ticket/13304 | Stopgaps:
Dependencies: |
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Comment (by vdelecroix):
Replying to [comment:25 jdemeyer]:
> Actually, #17585 fixes
> {{{
> sage: V = ZZ['x']^50000
> sage: V([0]*50000)
> }}}
> but not
> {{{
> sage: vector([0]*50000)/1
> }}}
>
> Since this ticket looks quite independent of #17585, it makes sense to
have both.
>
> I do suggest to add the ''two'' doctests above, since they clearly test
different issues.
The first one should go in #17585, no?
--
Ticket URL: <http://trac.sagemath.org/ticket/13304#comment:26>
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