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This Math Flash Forum Sharing Area applet provides students with practice with polar coordinates and the radian measure of angles through a simple, interactive game.
A module intended to introduce the use of mathematical models in population dynamics from a biological perspective and to give substance to an elementary differential equations course
A welcome message from MAA's Director of Publications & Electronic Services
Useful for teaching as well as artistic endeavors, this applet allows the user to build a "seed" for a recursive process that constructs complex and fascinating fractal images.
This site includes two applets, one for visualizing the approximation of a square wave by trigonometric series, and the other for hearing successive approximations to the displacement curve of a sound wave.
This is a review of the software program Live Math.

The curve traced out on a baseball by its seam has many symmetries. This article explores the class of closed spherical curves with the same symmetries, which we call generalized baseball curves.

This paper describes a Flash-based OSSLET that we have used at the United States Military Academy with first year calculus students as a vehicle for motivating vectors, matrices, and linear and affine transformations.
This utility uses the free Flash player plug-in resident in most browsers to allow the user to plot parametrically defined surfaces in cylindrical coordinates. Many examples and directed exercises are included.

A Developers' Area article on the construction and collection of quality mathlets.