#18812: latte_int: count integer points
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Reporter: | Owner:
ncohen | Status: needs_review
Type: | Milestone: sage-6.8
enhancement | Resolution:
Priority: major | Merged in:
Component: | Reviewers:
geometry | Work issues:
Keywords: | Commit:
Authors: | a609439c3480fb7744b689ee22f73e14c86acb8a
Nathann Cohen | Stopgaps:
Report Upstream: N/A |
Branch: |
public/18812 |
Dependencies: |
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Comment (by mkoeppe):
Replying to [comment:10 ncohen]:
> > I also don't understand why one method using `latte` is in `base.py`
and the other in `base_ZZ.py`. Why is that? Which polytopes are valid
input for `count`?
>
> My understanding is that `ehrhart_polynomial` is only defined for
lattice polytopes. So you need an explicit "lattice", and this lattice is
`ZZ^d`.
A polytope could as well be defined using rational data, and still happen
to have integer vertices. So I think it should be made available for
general polytopes.
If it's not a lattice polytope, LattE will signal an error.
--
Ticket URL: <http://trac.sagemath.org/ticket/18812#comment:33>
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