• Introducing Python3.codes

    Programming is fun! No, really, it is! I just love to make little programs that draw amazing pictures like the Mandelbrot Set and other fractals, or Harmonographs, or that make computer music. But while I was learning Python, and looking for examples…

  • Mandrian’s Fractal Art Gallery

    Mandrian’s Fractal Art Gallery displays fractal art rendered by a sentient AI who has been roaming the Universe – possibly even the Multiverse – to bring us these wonderful pictures of far-away galaxies, planetary systems, and alien life forms. At…

  • How the Web Works, in Amazing Detail
    How the Web Works

    Visiting a web site seems so simple – click on a link in your web browser, and soon – within seconds we hope – an interesting web page reveals itself to us. What could be easier? In fact, what happens…

  • Mandelbrot Set in Python
    The Mandelbrot Set, according to my Python program

    The Mandelbrot set is a mathematical set of points whose boundary is a distinctive and easily recognizable two-dimensional fractal shape. The set is closely related to Julia sets (which include similarly complex shapes), and is named after the mathematician Benoit…

  • World Science U: Knowledge for Everyone
    World Science U

    Whether you are a high school student, science major in college or a lifelong learner, World Science U is where you can explore the wonders of Science guided by leading researchers an educators. World Science U provides a unique educational…

  • WordPress Tips & Tutorials

    This WordPress Tips & Tutorials article offers a few tips gained from a few years of experience with building and tuning WordPress websites. It also links to further articles for optimising WordPress, and some tutorials. WordPress started in 2003 as…

  • General Puzzles

    A man who lives on the tenth floor takes the lift down to the first floor every morning and goes to work. In the evening, when he comes back; on a rainy day, or if there are other people in…

  • Open Visual Traceroute

    If you wanted to create the kind of computer display often seen in TV dramas where they’re trying to catch the evil hacker by tracking his IP address (CSI), you could do worse than to start with the open source cross-platform…

  • Version Control Systems
    Version Control Systems

    Version Control is the management of changes to documents or files, either in time as incremental improvements, or as divergences for different purposes or contexts, such as development or release branches of software. The documents or files could be software or…

  • Software Training (S.Wales)
    Software Training (S.Wales)

    I can offer courses in Programming (Python, C), WordPress, E-Commerce, Linux, Open Source Software. I provide affordable software training with and about free software. I have run successful businesses without paying for software, by using Free Open Source Software (FOSS) or by writing it…

  • My Favourite WordPress Plugins
    Software Training

    WordPress is a very versatile yet easy-to-use blogging platform. I use it for this site. You can further extend its features with a huge variety of WordPress Plugins, and there’s no shortage of lists of recommended plugins on the web….

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