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    ICM 2022 will not be held in Russia – it’ll be virtual, and free

    By Peter Rowlett. Posted February 27, 2022

    In recent days there have been calls for the International Mathematical Union (IMU) to not hold in the International Congress of Mathematicians (ICM) in Russia in July 2022 due to the developing situation in Ukraine. This is in addition to previous complaints that Russia is not a safe place to host the ICM, particularly because…

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    News Roundup

    Aperiodical News Roundup – February 2022

    By Christian Lawson-Perfect, Katie Steckles and Peter Rowlett. Posted February 25, 2022

    Here’s a roundup of mathematical things that have happened in February 2022. Ukraine The deeply troubling and developing situation in Ukraine has implications for the 2022 International Congress of Mathematicians (ICM) due to take place in St. Petersburg, Russia in July. A group of Ukrainian mathematicians has issued a call for mathematicians to boycott the…

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    Travels in a Mathematical World

    Introducing hexboard – a LaTeX package for drawing games of Hex

    By Peter Rowlett. Posted February 23, 2022

    Hex board with counters.

    Chris Sangwin and I wrote a LaTeX package for drawing Hex boards and games called hexboard. It can produce diagrams like this. First: why? Then: how do you use it?

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    Carnival of Mathematics

    Carnival of Mathematics 201

    By Katie Steckles. Posted February 9, 2022

    The next issue of the Carnival of Mathematics, rounding up blog posts from the months of December and January, is now online at Ganit Charcha. 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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    Pascal’s Triangle and its Secrets

    Numbers and number patterns in Pascal’s triangle

    By David Benjamin. Posted February 4, 2022

    This is the fourth in a series of guest posts by David Benjamin, exploring the secrets of Pascal’s Triangle. Triangles and fractals If we highlight the multiples of any of the Natural numbers $\geq 2$ in Pascal’s triangle then they create a pattern of inverted triangles. The images above are evocative of the Sierpinski sieve (also known…

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    News Roundup

    Aperiodical News Roundup – January 2022

    By Katie Steckles. Posted February 2, 2022

    Here’s a roundup of some of the mathematical things that happened in the first month of the year.

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    Irregulars

    A Mathematician’s Guide to Wordle

    By Ali Lloyd. Posted February 1, 2022

    We invited mathematician and wordplay fan Ali Lloyd to share his thoughts on hit internet word game phenomenon Wordle. If you’re not familiar with the game, we recommend you go and have a play first. When I first saw Wordle I said what I saw many other people subsequently say: “Oh, so it’s a bit…

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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 © 2025 Peter Rowlett, Katie Steckles and Christian Lawson-Perfect. All posts © their authors. All rights reserved.