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An interactive module to study numerical and graphical solutions of differential equations in first-semester calculus.

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 tribute to one of our authors, who died suddenly and unexpectedly while his second JOMA contribution was in preparation.

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.
An article in which the focus-locus, focus-directrix, and cone-slicing descriptions of ellipses are related by way of the space-time geometry of special relativity.
opinion essays from Loci editors

An article on Group Explorer, a system that uses graphical representations of groups to build intuition.

A Biological ESTEEM module in the BioChemistry Category. This workbook calculates the necessary components to create a buffer solution.
A mathlet to sketch a derivative function by hand or by recording slopes of tangent lines.
This article introduces and reviews the 'Easy Java Simulations' software environment for developing math explorations as interactive Java applets.