Discrete math is different from discreet math. Discreet means "prudent, or showing good judgement." So "discreet math" doesn't really have any meaning. But discrete means "individually distinct, or noncontinuous." Discrete math deals with sets of elements which can be completely separated and distinguished from one another. The set of real numbers is not a discrete set, because they form a continuous line. When you measure time, distance or another attribute, you are using a continuous system because you can always measure using a smaller part of the unit. The set of integers is a discrete set because every integer is completely separated and distinctly different from the other integers. When you count discrete objects such as people, cars, or computers, it doesn’t make sense to have less than or a part of a whole.
Graph Theory Tutorials
An Interactive Introduction to Graph Theory
Euler and Hamiltonian Circuits
Coloring Maps and Related Problems
Graph Theory Glossary
Discrete Math Resources Flash Applications and activities
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Activities for Election Theory, Fair Division, Graph Theory, Counting Techniques and more.