The Multifunction plotter App shows a square wave approximated by a series of sine waves (Fourier Series).
Lightning from a wand using the glow effect in Excel 2010 charts, see Expecto Petronam!
The Butterfly Curve, plotted using the Parametric Function Plotter.
Image processing with Excel
Simulation of a Binary Coded Decimal decoder circuit.
A Psychedelic Image of a Mandelbrot Set: See Psychedelic Mandelbrot
"Matrix" Movie Style Digital Rain
An advanced version of the Image Processing App, contributed by Bert van Zandbergen from Beekbergen, The Netherlands.