Greetings, The following was taken from another fractal related group, thought it might be of some interest to a few individuals here as well. ________________________________________________________________________ Project Euler Leonhard Euler (1707-1783) Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve. Although mathematics will help you arrive at elegant and efficient methods, the use of a computer and programming skills will be required to solve most problems. Please be warned that the problems are challenging and you are unlikely to make much progress if you have no knowledge of programming. Having said that, this is both the perfect environment and opportunity to learn new techniques and refine your programming skills. In order to track your progress it is necessary to setup an account and have Cookies enabled. If you already have an account and would like to login, click here: http://www.mathschallenge.net/index.php?section=project&ref=login To setup a new account click here: http://www.mathschallenge.net/index.php?section=project&ref=register When new problems are added to the database they are initially worth 20 points. However, each time a problem is solved by a registered user, it reduces slightly in value. As a result, easy problems, which will be solved by most users, quickly become low scoring problems. Conversely, truly difficult problem will remain high scoring. Your overall score is not fixed and will change if any of the problems that you have already solved change in value. It is hoped that this entirely dynamic and original scoring system will, on the one hand, add an extra dimension of interest to solving problems, but on the other hand, will lend itself to users of all abilities. That is, it should allow beginners to identify the easier problems to get started with, and advanced users to target the more difficult and challenging problems. Please note that each problem is designed according to a "one-minute rule", which means that although it may take several hours to design a successful algorithm with more difficult problems, an efficient implementation will allow a solution to be obtained on a modestly powered computer in less than one minute. Of course solving a problem is the ultimate goal, but if you consider yourself a skilled programmer/problem solver you may like to retry some of the challenges that took longer to solve on your first attempt. http://www.mathschallenge.net/index.php?section=project&ref=problems ________________________________________________________________________ Sincerely, P.N.L. ------------------------------------------------- http://home.att.net/~Paul.N.Lee/PNL_Fractals.html http://www.Nahee.com/Fractals/