#8059: update Singular SPKG to newest upstream release
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Reporter: malb | Owner:
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-4.3.4
Component: packages | Keywords:
Author: Martin Albrecht | Upstream: Fixed upstream, in a later
stable release.
Reviewer: | Merged:
Work_issues: |
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Comment(by malb):
Reply from upstream:
{{{
This is not a bug, Singular computes only the genus
of a curve, as is said in the manual:
genus(i) or genus(i,1); I a 1-dimensional ideal
In the example the ideal defines a surface.
Gert-Martin
2010/3/9 <[email protected]>:
> #212: wrong computation of genus / error when calling genus
>
--------------------------------------------------------------+-------------
> Reporter: Martin Albrecht <m...@… |
Owner: somebody
> Type: defect |
Status: new
> Priority: minor |
Milestone: Releases 3-1-1 and higher
> Component: singular-libs |
Version: 3-1-1
> Keywords: genus |
>
--------------------------------------------------------------+-------------
>
> Comment(by seelisch):
>
> Here's another bug related to genus:
>
> > ring r = 5,(x,y,z),dp;
> > > ideal i = -x3 + y2*z - 2*x*z2 + y*z2;
> > > LIB("normal.lib");
> > > genus(i);
> ? ideal defines not a curve
> ? leaving normal.lib::genus
}}}
Alex, can you look into this?
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8059#comment:50>
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