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In the United States, congressional districts are redrawn every ten years based on changes in population revealed by the census.

This article introduces a Web-based technology, called enVision, that extends the concept of a chatroom or whiteboard to include capabilities for mathematical and symbolic content.

The Chebyshev equioscillation theorem is of great importance in polynomial approximation, but is usually omitted from the undergraduate numerical analysis course. Our aim in this paper is to use applets to motivate and illustrate the proof.

Our purpose in this descriptive, exploratory study is to report on our efforts in conducting a cyber tutoring project that combined two curricular domains ---- mathematics education and engineering education.

This Developers' Area article presents a five-step procedure to help authors construct mathlets in Excel. The procedure is demonstrated with a mathlet that shows the tangent line to the graph of a function.

This is an article on Scalable Vector Graphics, a standard format for two dimensional vector graphics. The first part is a gallery of examples that demonstrate a few of the possibilities. The second part breaks down one of the examples in detail.

The JOMA Global Positioning System and Imagery Collection is a growing library of data, how-tos, and materials for learning mathematics, science, and engineering using data collected with GPS units and both digital still and movie cameras.

In this Editor's note, I discuss how to use HTML, CSS style sheets, and JavaScript to produce mathematical documents that are well-structured, conform to best practices, and look good. I also provide a number of sample documents and links to resources.