#7828: There should be a top-level sign() function.
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Reporter: robertwb | Owner: AlexGhitza
Type: defect | Status: positive_review
Priority: minor | Milestone: sage-wishlist
Component: algebra | Keywords:
Author: Karl-Dieter Crisman | Upstream: N/A
Reviewer: John Cremona | Merged:
Work_issues: |
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Changes (by cremona):
* status: needs_review => positive_review
* reviewer: => John Cremona
Comment:
Looks good, applies fine to 4.4.3.alpha0 and tests pass.
I did wonder whether it would be better to return a Sage integer rather
than an int?
Also, I looked for places where sgn() was used/defined and found a
redundant definition of sgn() in quadratic_forms/extras.py, which I am
removing in another ticket (#9068).
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7828#comment:5>
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