optimizations — a document which presents some general sequential and parallel optimizations (to better exploit the cache memory and the processor), using a kohonen neural network implementation as example (which highly improves the execution time).
pseudo-bresenham — an algorithm based on Bresenham's one which draws all the points of the line, not only one point per axis.
Mathematics and logic
Problems — some logical and
mathematical problems I found very nice. Click here to see a very nice graphical problem whose goal is to find the error and here to see my two favourite logical problems.