GRAPH UTILITIES PACKAGE SYMBOL
gives the distance from vertex i to vertex j in the graph g.
- To use , you first need to load the Graph Utilities Package using Needs["GraphUtilities`"].
- returns the graph distance from one vertex to another. Infinity is returned if no path exists from i to j. By default every edge is assumed to have an edge weight of 1.
- The following option can be used:
|Weighted||False||specifies whether edge weight is to be used in calculating distance|
This defines a simple directed graph:
This calculates the distance from vertex 1 to vertex 5:
There is no path from vertex 4 to vertex 1:
This defines a simple directed graph with edge weights:
This shows that the distance from vertex 1 to 3 is 2 if unit edge weights are assumed:
But the distance becomes 0 if edge weights are taken into account: