# Loci Browse Articles

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This gallery of images and animations shows many examples of how the POVray ray-tracing software can be used to display examples in three-dimensional geometry.

This mathlet includes several puzzles for students to play with the derivative.
Osslets (open source, sharable mathlets) are free and flexible interactive components you can easily add to your Web pages. The collection includes ready-to-use curriculum units.
A module intended to introduce the use of mathematical models in population dynamics from a biological perspective and to give substance to an elementary differential equations course
This dynamic Java applet developed with support from the NSF (Dynamic Visualization Tools for Multivariable Calculus, DUE-CCLI Grant #0736968)) allows the user to simultaneously graph multiple 3D surfaces, space curves, parametric surfaces, vector fields, contour plots, and more in a freely rotatable 3D plot. This tool is intended as a dynamic visualization and exploration environment for multivariable calculus. Use it to illustrate the geometric relationships of many of the concepts of multivariable calculus, including dot and cross products, velocity and acceleration vectors for motion in the plane and in space, the TNB-frame, the osculating circle and curvature, surfaces, contour plots and level surfaces, partial derivatives, gradient vectors and gradient fields, Lagrange multiplier optimization, double integrals as volume, defining the limits of integration for double and triple integrals, parametric surfaces, vector fields, line integrals, and more. See the corresponding web page for documentation and a list of guided explorations developed for students to use with this exploration applet.
A welcome message from MAA's Director of Publications & Electronic Services
This ESTEEM module in the Biometrics Category leads the user through several different methodologies for applying Bayesian probabilities to real life examples and problems.
This is the second in a series of Developers' Area articles on writing Java applets.
Useful for teaching as well as artistic endeavors, this applet allows the user to build a "seed" for a recursive process that constructs complex and fascinating fractal images.
This site includes two applets, one for visualizing the approximation of a square wave by trigonometric series, and the other for hearing successive approximations to the displacement curve of a sound wave.