Video Transcript Why do we use maps, charts and graphs in writing? Graphs, charts and maps are very useful for presenting complicated information in a visual way that is easier to understand.

Using this definition of path, OP, you must realize that there may be exponentially (in the number of vertices + edges in the graph) many paths between two vertices (even in simple graphs).

Google’s Knowledge Graph Is Showing Step By Step Instructions: Here Are Some Examples Earlier this year, Google began offering much more detailed answers in the top Knowledge Graph box.