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    -e^iπ to Watch

    \(-e^{i\pi}\) to Watch: Tibees

    By Katie Steckles. Posted October 18, 2023

    In this series of posts, we’ll be featuring mathematical video and streaming channels from all over the internet, by speaking to the creators of the channel and asking them about what they do. We spoke to Toby Hendy, author of the YouTube channel Tibees, which has over a million subscribers.

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    A Gardner's Dozen in TikZ

    2. Four bugs

    By Peter Rowlett. Posted October 18, 2023

    Reproduction of the cover image, four sets of coloured lines spiralling inwards.

    Reminder: I’m occasionally working to (sort of) recreate Martin Gardner’s cover images from Scientific American, the so-called Gardner’s Dozen. This time I’m looking at the cover image from the July 1965 issue, accompanying the column on ‘op art’ (which became chapter 24 in Martin Gardner’s Sixth Book of Mathematical Diversions from Scientific American).

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    Irregulars

    Pythagoras and his theorem

    By David Benjamin. Posted October 14, 2023

    In this guest post, David Benjamin shares a cornucopia of concepts and stories relating to Pythagoras and his famous theorem. I admit to mild irritation when I’m told that Pythagoras’ theorem is $a^2+b^2=c^2$. The theorem is based on area – in particular, that of squares. There are many proofs of the theorem and in this…

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    News, Reviews

    New Book – Short Cuts: Maths

    By Katie Steckles, Peter Rowlett and Sam Hartburn. Posted October 12, 2023

    Our own Katie and Peter have collaborated on a new popular maths book, along with friends of the site Alison Kiddle and Sam Hartburn, which is out today. Short Cuts: Maths is an “expert guide to mastering the numbers behind the mysteries of modern mathematics,” and includes a range of topics from infinity and imaginary…

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    Mathematical Objects

    Mathematical Objects: Post-season 7 update

    By Katie Steckles and Peter Rowlett. Posted October 10, 2023

    Mathematical Objects

    A short update from Katie and Peter. Podcast: Play in new window | Download Subscribe: RSS | List of episodes

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    Carnival of Mathematics

    Carnival of Mathematics 220

    By Katie Steckles. Posted October 5, 2023

    Screenshot of the Carnival on the Infinitely Irrational blog

    The next issue of the Carnival of Mathematics, rounding up blog posts from the month of September 2023, is now online at Infinitely Irrational. The Carnival rounds up maths blog posts from all over the internet, including some from our own Aperiodical. See our Carnival of Mathematics page for more information.

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    News Roundup

    Aperiodical News Roundup – September 2023

    By Katie Steckles. Posted October 4, 2023

    Here’s a roundup of some things that happened in September 2023 that you may have missed.

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The Aperiodical is a magazine and blog for people who already know they like maths and would like to know more.

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The Aperiodical © 2026 Peter Rowlett, Katie Steckles and Christian Lawson-Perfect. All posts © their authors. All rights reserved.