#16264: Rotate error on childless binay trees
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Reporter: VivianePons | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.2
Component: combinatorics | Resolution:
Keywords: combinat, Tamari, binary | Merged in:
trees, FindStat | Reviewers:
Authors: Viviane Pons | Work issues:
Report Upstream: N/A | Commit:
Branch: | Stopgaps:
Dependencies: |
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Comment (by elixyre):
Rotation on binary trees is an '''elementary transformation''' that should
be coherent with the definition (the original one!!)
So that transformation is a partial map:
- that return a new (different) binary tree
- or that is not defined! -> raise an exception
If you are not agree with exception, the method could be an iterator. (My
opinion (again) is that way is a wrong but I don't have any real
argument...)
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Ticket URL: <http://trac.sagemath.org/ticket/16264#comment:16>
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