3rd May 2024: added Rainbows page.

19th November 2023: updated SoC and core pages for Pi 5.

8th February 2023: added page on the factorisation of Mersenne numbers.

31st July 2022: more Mandelbrot Set to a separate top-level menu, and add pages on fixed point Mandelbrot Sets. Change all matplotlib code to avoid modifying preset palettes, and recent versions of matplotlib forbid this.

2nd July 2022: add page on a parallel Mandelbrot Set using python's multiprocessing.

1st May 2021: add page on integration.

11th February 2021: updated, added a few extra images to the Mandelbrot Gallery, and added section on finite precision to the end of the Mandelbrot theory page.

31st January 2021: added the Mandelbrot Gallery and the tkinter Mandelbrot set, whilst deprecating the GTK3 version. Updated to improve coding style.

11th January 2021: added Conway's Life.

5th December 2020: added series for sin(x), partly as examples of gnuplot and matplotlib.

24th July 2020: added page on memory latency of Pi and Core2.

10th July 2020: added comparison of Pi and Cray using Mersenne test, and rearranged the menu items for the pages relating to primes.

27th June 2020: added negative numbers and subtraction to from Transistors to a CPU.

24th June 2020: added GTK3 Mandelbrot Set and from Transistors to a CPU.

11th June 2020: added an optimised Mandelbrot Set.

1st June 2020: site made known to Google, with 34 pages in sitemap.