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Gauss-Kronrod Integration is an adaptation of Gaussian quadrature used on some graphing calculators. This Java applet outlines the mathematical computations involved and visually demonstrates the process the calculator uses to evaluate the integral.

Quick Interactive Web Pages with Java Sketchpad

A Developers' Area article on the use of Java Sketchpad to construct and publish interactive Web pages.

Area under a Curve

A mathlet to explore approximation of the definite integral by Riemann sums

Exploring Cycle Notation

Two applets for giving students some hands-on practice with cycle notation and composition of permutations.

Parametric Surfaces

This utility uses the free Flash player plug-in resident in most browsers to allow the user to plot a parametrically defined surface on a customized scale and dynamically rotate the three-dimensional picture.