Thanks Noah for the report here and at
- Ask Sage question 52910: Unexpected intersection between parallel polygons
https://ask.sagemath.org/question/52910
Thanks Vincent for opening a ticket!
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Hello,
This is definitely a bug. Thanks for the report. I opened
the ticket #30319 to track the issue, see
https://trac.sagemath.org/ticket/30319
Note that if you use rational coordinates, it looks fine. With
a = Polyhedron([[0, -1, 1], [1, -1, 1], [1, 1, -1]])
b = Polyhedron([[0, -1/2, 3/
Hello,
I have found that sage finds a non-zero intersection between polygons when
they are parallel but non-intersecting. A reproducible example:
```
# Define parallel polygons.
a = Polyhedron([[0, -1, 1], [1, -1, 1], [1, 1, -1]])
b = Polyhedron([[0.0, -0.5, 1.5], [1.0, -0.5, 1.5], [1.0, 1.5, -0.
