Exploring Graphs with Elixir

First Contact

Before going further, let’s establish some of the terms we’ll be using in this book. First of all, when we talk about graphs, we obviously mean networks—not charts. Traditionally the term “graph” has referred to a diagram or plot of one quantity against another. This is the more widely understood sense of the term. But that’s not our concern here. We’ll use the term “graph” in its other sense of a data structure used to model relationships between things. That is, we have one set of things and another set of relationships between those things. Those two sets together constitute a graph. In its most general sense, a graph is a data model for relating a collection of things.

Network vs. Graph
	We mentioned the word “network” before. ...