The dihedral group D8 (sometimes called D4), the group of symmetries of the square, is one of the simplest finite groups. In these three mathlets, we will explore different aspects of this symmetry group to get a better understanding of its structure.
This site is a companion site to the MathDL Flash Forum. Flash Forum articles provide source code, libraries of custom classes, and PDF user guides. This site offers tutorials, ranging from basic to advanced, in video as well as in PDF format.
This Flash Forum developer's article includes source code and instructions for building an applet that allows the user to enter expressions with up to four parameters and then to vary the parameters in order to fit the curve to user data.
This applet allows the user to see regions of integration for double integrals in rectangular or polar coordinates. The applet uses classes from the article "Flash Tools for Developers: Parametric Curves on the Plane."
This Biological ESTEEM module in the Botany Category allows scientists to collect data from specimens, insert the measurements into a spatially explicit L-system package, and visually compare to the computer generated 3D image with such specimens.
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.