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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.

Let binary integer linear programming solve Sudoku puzzles and variations on the game for you. Also, learn to prove theorems regarding puzzle creation. Java applets allow for interactive exploration, and exercises and challenge problems are included.

An article about "lite applets," flexible and powerful tools that can be used as part of highly interactive curriculum modules that are scientifically and pedagogically sound.

In this article, a very simple model is used to describe and generate many types of seashell shapes.
A Biological ESTEEM module in the Ecology Category. This worksheet simulates the population growth of two interacting species.
A Biological ESTEEM module from the Ecology Category. This Excel workbook uses the Leslie Matrix Model for population projection of age-class or stage-class structured populations.

The Editor's update for Issue 3 of Volume 1

Loci has a new Editor!
An interactive module to introduce parametric representations of curves and to stimulate student interest in mathematics.
This Flash Forum article includes source code and modification instructions that will allow you to customize a grapher for surfaces in space.