#9337: Add toric divisors
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Reporter: vbraun | Owner: AlexGhitza
Type: enhancement | Status: needs_info
Priority: major | Milestone: sage-4.6
Component: algebraic geometry | Keywords:
Author: Volker Braun | Upstream: N/A
Reviewer: Andrey Novoseltsev | Merged:
Work_issues: |
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Comment(by novoselt):
The first variant will not look nicely for non-ZZ-coefficients, so from
these three I prefer the last one, `{x=0}-2*{y=0}+{z=0}`. What do you
think of `V(x)-2*V(y)+V(z)` to indicate zero sets? It will allow users
like me to write something like
{{{
sage: V = X.divisor
sage: V(x)
V(x)
}}}
Both of this will work fine for general divisors given by equations, so
I'll try to put this code into the base class.
I agree about concentrating everything in repr/latex - it will allow
adding more naming schemes that users can choose and switch on the fly
later (I think it would be great to be able to switch between all of the
presentations you have listed).
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9337#comment:28>
Sage <http://www.sagemath.org>
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