Fractal Tubes is Windows and Mac screensaver that displays fractals in 3D using Open GL. Pong for Linux - My old game got a second life on Linux. Play with a mouse, against computer, or over the network. Here is also its Windows 10/11 port. Interesting surface-pattern drawing algorithm that fits in just five lines of code! Mathematics of the soccer ball Two theorems on prime numbers Ever wondered how to tune your guitar using a TV set? This article (in Russian) gives you an idea. Applesoft BASIC tutorial for beginner programmers Checklist: Most frequent memory allocation errors in C/C++ made by developers My Photos Online