Question: Origin() Twin(e) (modified from Exercise 2.5 from BCKO) Given an edge e in a DCEL, which of the following equalities are always true? Twin(Twin(e))-e Next(e)

Origin() Twin(e) (modified from Exercise 2.5 from BCKO) Given an edge

Origin() Twin(e) (modified from Exercise 2.5 from BCKO) Given an edge e in a DCEL, which of the following equalities are always true? Twin(Twin(e))-e Next(e) Prev(e Next(Prev(e)) - e Twin(Prev(Twin(e)))= Next(e) IncidentFace(e) . Next(Twin(Next(e)))-Twin(e) . IncidentFace(e)=IncidentFace(Next(e))

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