Choose a tour through mathematical Web pages about ellipses.

Or quickly find a reference to a mathematical definition or theorem.

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Take a tour. . .

Pick the tour that best fits your goals, needs, and learning style. To follow a tour, repeatedly press the button for the tour you want to be on:

The is a traditional textbook approach of definition, examples, properties (with proofs), exercises, and problems (including applications).


The will help you see the thinking behind the ideas: how mathematicians develop concepts to answer questions.


The is based on setting up mathematical structures to solve applied problems. You first think about a problem and then learn math ideas that can help you solve it.


To continue with your tour, just click on the appropriate button at the bottom of your page.

. . . or quickly look up mathematical ideas.

Until we get funding, these demonstration pages concern just one mathematical topic: ellipses.