Mathematical Games, Toys, and Puzzles Puzzles and brain teasers archived from the newsgroup rec.puzzles and categorized by subject. Both the puzzles and their solutions are given. Arithmetic and Algebra Graph Theory through games that can be played on a table or on the playground. Graphs are mathematical objects that are made of dots connected by lines. Graph Theory is the branch of mathematics that involves the study of graphs.
Graphs are very powerful tools for creating mathematical models of a wide variety of situations.
Graph theory has been instrumental for analyzing and solving problems in areas as diverse as computer network design, urban planning, and molecular biology. Graph theory has been used to find the best way to route and schedule airplanes and invent a secret code that no one can crack.