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Expectation Maximization and Mixture Modeling Activity

This is a pair of (1D and 2D) SOCR Activities that demonstrate random sampling and fitting of mixtures of Gaussians to model complex data (e.g., multimodal).

Java Math Pad

This applet, designed as a limited computer algebra system, allows the user to evaluate mathematical expressions, including those of interest in a calculus class.

The Consumer Price Index and Inflation

A module to explore Consumer Price Index data by fitting an exponential curve to it in Excel

Animated Sequences

A mathlet that allows you to visualize a sequence (or series) of real functions.

Mathematical Brooding over an Egg

This article explores how mathematical techniques, digital images, and dynamic geometry software can be used to analyze a real-world situation originating from poultry science. The topic is mathematical modeling of the shape of an egg, where the underlying question is: What is the volume and surface area of a hen's egg?"

A Collection of Tools for Multivariable Calculus

This utility uses the free Flash player plug-in resident in most browsers to allow the user to plot 3D curves and surfaces on a customized scale and dynamically rotate the picture.