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What does "vertex" mean in programming?
vertex is one of the most common terms in software development. This guide explains what it means, how it is used in practice, and why it matters, with real examples from the developer world.
Definition
A fundamental unit of a graph, also called a node. Vertices represent entities (cities, users, web pages) and edges represent relationships between them. The plural is vertices.
Example
"Each user in a social network is a vertex; each friendship is an edge."
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