Wolfram Function Repository
Instant-use add-on functions for the Wolfram Language
Function Repository Resource:
Quickly test for existence of an edge between two vertices
Determine if two vertices are connected by any edge:
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Note that EdgeQ will give False because it takes edge properties, such as tags, into account:
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EdgeBetweenQ works regardless of edge tag or edge type:
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Check whether an edge is part of a large edge-tagged graph:
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