#10148: Automorphism group of a Polyhedron
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Reporter: vbraun | Owner: mhampton
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-feature
Component: geometry | Keywords:
Author: Volker Braun | Upstream: N/A
Reviewer: Andrey Novoseltsev | Merged:
Work_issues: |
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Comment(by vbraun):
1. I meant that in the concrete case of the quadrant there are no
translations. I'll try to re-word it.
2. The `_is_zero(x)` method is `abs(x)<1e-7` if the `Polyhedron.field()`
is `RDF`. So that implements the fuzzy zero. Its definitely simple-minded,
but then thats what `cdd` uses internally:
{{{
sage: Polyhedron(vertices=[(0,), (1e-8,)], field=RDF)
A 0-dimensional polyhedron in RDF^1 defined as the convex hull of 1
vertex.
}}}
3. Thanks, forgot about that %-)
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10148#comment:10>
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