
Recent Posts
Subscribe to Complex Projective 4Space
Join 2,976 other subscribersArchives
 January 2024
 July 2023
 March 2023
 February 2023
 January 2023
 October 2022
 September 2022
 July 2022
 June 2022
 May 2022
 January 2022
 December 2021
 September 2021
 July 2021
 June 2021
 May 2021
 February 2021
 January 2021
 December 2020
 November 2020
 October 2020
 September 2020
 August 2020
 July 2020
 June 2020
 May 2020
 June 2019
 May 2019
 March 2019
 November 2018
 September 2018
 July 2018
 June 2018
 May 2018
 April 2018
 March 2018
 February 2018
 November 2017
 October 2017
 November 2016
 May 2016
 March 2016
 February 2016
 December 2015
 September 2015
 March 2015
 February 2015
 January 2015
 December 2014
 November 2014
 October 2014
 September 2014
 August 2014
 July 2014
 June 2014
 May 2014
 April 2014
 March 2014
 February 2014
 January 2014
 December 2013
 November 2013
 October 2013
 September 2013
 August 2013
 July 2013
 June 2013
 May 2013
 April 2013
 March 2013
 February 2013
 January 2013
 December 2012
 November 2012
 October 2012
 September 2012
 August 2012
Recent Comments
Monthly Archives: August 2012
Sexy symmetrical starfish
Studies have shown that bilateral symmetry in female humans is linked to attractiveness. Also connected with attractiveness is the presence of the golden ratio (the positive real root of the quadratic equation x² – x – 1 = 0, approximately 1.618034). Earlier, … Continue reading
Posted in Uncategorized
Leave a comment
Elliptic curve calculator
What’s the cheapest calculator you know of? Basic calculators are much cheaper than their scientific counterparts, and you can probably get one for £2. A slide rule is even cheaper: you could strap together two plastic rulers with logarithmic scales … Continue reading
Posted in Uncategorized
16 Comments
Cipher 1: Puzzle Hybridisation
This is the first of a series of cipher challenges published at regular intervals. After much deliberation, I settled upon a 28day cycle, for the benefit of both werewolves and premenopausal women alike. It is also a convenient multiple of … Continue reading
Posted in Ciphers
Leave a comment
Conway polyhedron notation
There is a plethora of polyhedra. One way to classify polyhedra is based on their symmetry, transitivity and other properties. An alternative, constructive approach, by John Conway, involves specifying sequences of operations to turn one polyhedron into another. Quite a … Continue reading
Posted in Uncategorized
6 Comments
Are you Ready?
I expect you’re tired of hearing about the centenary of Alan Turing’s birth. His automated machines for cracking the German Enigma and Lorenz ciphers have enjoyed quite a lot of recent press, as has his pioneering work on the theory … Continue reading
Posted in Uncategorized
Leave a comment
Pathological functions
For my first post on this blog, I’ve decided to stay away from complex projective 4space, but instead write about something equally mathematical and just as interesting: pathological functions. The ideas may be more familiar to you in the form of fractals, although the … Continue reading
Posted in Uncategorized
Leave a comment