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This article presents a fresh look at an age-old calculus optimization problem, the 'box problem.' (Also includes a Student Module condensed from the article.)

This article explores the geometric interpretation of fractional integration with the aid of several animated images.
A Biological ESTEEM module in the Epidemiology Category. This worksheet implements an SIR (Susceptible/ Infected/ Resistant) model of epidemiology for vector-borne diseases.
A Developers' Area article about developing reusable components in Java.
The purpose of this collection of applets and activities is to make students familiar with the basic principles of complex numbers. Combining explanatory text, exercises and interactive GeoGebra applets, this resource is suitable for both classroom lectures and distance learning.

Geometry Playground (v1.3) is a free Java application for doing "ruler and compass" constructions in both Euclidean, Spherical, Projective, Hyperbolic, Toroidal, Manhattan and Conical geometries. Its purpose is to help users develop a familiarity with various conceptualizations of these geometries.

This Java applet allows the user to experiment with Riemann sums. It can also be used to approximate definite integrals or find upper and lower bounds to the exact value of a definite integral, using Riemann sums.
This ESTEEM module in the Biometrics Category describes construction of three simple databases using a spreadsheet. Recommendations for building simple databases using a computer spreadsheet and the statistical analysis of its data are given.

The use of JavaMath is explained via an example and ideas for new types of web service are discussed.

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