#7836: Clean up the CRT_* functions
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Reporter: mhansen | Owner: AlexGhitza
Type: defect | Status: new
Priority: major | Milestone: sage-4.3.1
Component: basic arithmetic | Keywords:
Work_issues: | Author:
Upstream: N/A | Reviewer:
Merged: |
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From #7595:
Replying to [comment:10 cremona]:
> I have some problems with the CRT* functions though.
>
> 1. CRT_list does not check that the two lists have the same length;
if the moduli list is shorter you get an IndexError, but it would be
better to catch that and raise a more informative error.
>
> 2. CRT_basis is rather silly. It calls CRT_list n times with the
same moduli, which must be wasteful. It would be better to call plain CRT
n times with suitable moduli (exercise for the reader).
>
> Of course, I don't think that these issues should delay the current
patch, but deserve a ticket of their own to make sure they are tided up.
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7836>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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