tool to create, manipulate and study graphs

Some of the features of GraphThing are:

 * Adding, deleting and moving of vertices and edges.
 * Loading and saving of graphs.
 * Graph complements, induced subgraphs and line graphs.
 * Quick creation of many common graphs (complete, cycle, null, star, etc.).
 * Determination of shortest path, connectivity and Eulericity.
 * BFS, DFS and Minimum Spanning Tree.
 * Adjacency matrix (including exponents) and degree sequence.
 * Chromatic polynomial and chromatic number.
 * Network algorithms: Maximum network flow.

These `graphs' are mathematical objects that describe relationships between sets; they are not 2D plots, charts, or anything similar to that.

At the moment, only simple graphs and digraphs are supported; that is, no multiple edges or loops. Other than this, GraphThing can handle every type of graph.

http://packages.debian.org/squeeze/graphthing

http://graph.seul.org/