centroid of a tree

Revision en1, by ChemliYoussef, 2016-09-06 18:54:34

hello everyone , I want to know if a tree has a single centroid because I encounter some cases where I find 2 centroids...
thanks in advance ...

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en1 English ChemliYoussef 2016-09-06 18:54:34 173 Initial revision (published)