#14113: affine root system ambient lattice issue
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Reporter: mshimo | Owner: sage-combinat
Type: defect | Status: new
Priority: major | Milestone: sage-5.8
Component: combinatorics | Keywords: affine root system, ambient
lattice
Work issues: | Report Upstream: N/A
Reviewers: | Authors: nthiery
Merged in: | Dependencies:
Stopgaps: |
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error is in combinat/root_system/type_affine.py
sage: L = RootSystem(["A",1,1]).ambient_lattice()
sage: L.simple_root(0)
returns rational coefficients when integers are expected,
yielding the error
TypeError: unsupported operand parent(s) for '*': 'Rational Field' and
'Ambient lattice of the Root system of type ['A', 1, 1]'
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14113>
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