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    Travels in a Mathematical World

    An incorrect model of the lottery, and when it doesn’t matter

    By Peter Rowlett. Posted April 29, 2022

    Recently I came across an interesting idea about little mistakes in counting problems that actually don’t amount to much. In A Problem Squared 030, Matt Parker was investigating the question “What are the odds of having the same child twice?” and made some simplifying assumptions when thinking about DNA combinatorics. He justified leaving out a…

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    Interviews, Podcasting About, Podcasts

    Podcasting about: Eureka! podcast

    By Katie Steckles. Posted April 28, 2022

    Eureka! podcast logo (photo of Rick and Michael; subtitle: Getting under the skin of science

    In this series of posts, we’ll be featuring mathematical podcasts from all over the internet, by speaking to the creators of the podcast and asking them about what they do. We spoke to Michael Brooks, who co-presents the Eureka! podcast with Rick Edwards.

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    Main

    The Aperiodical is 10!

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

    Not that we’re overly consumed with numerical coincidences, but it’s perhaps nice to note that ten years ago today we made a little fuss of launching a new blog site with our first post, a post marking Felix Klein’s 163rd birthday, and a video about the Klein Bottle featuring Matt Parker and Katie Steckles.

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    Mathematical Objects

    Mathematical Objects: Hairy ball

    By Katie Steckles and Peter Rowlett. Posted April 22, 2022

    Hairy ball

    A conversation about mathematics inspired by a hairy ball. Presented by Katie Steckles and Peter Rowlett. Podcast: Play in new window | Download Subscribe: RSS | List of episodes

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    Travels in a Mathematical World

    Adapting my ‘programming for mathematicians’ module for teaching during the COVID-19 pandemic

    By Peter Rowlett. Posted April 8, 2022

    GitHub feedback comment

    When teaching moved online due to COVID-19, we had to quickly work out how to deliver our modules online. The main options used to replace in-person classes were: pre-recorded videos followed by live online tutorials for students to get support while completing exercises; live online classes offering a mixture of lecturer delivery and student activity.…

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    Mathematical Objects

    Mathematical Objects: Superegg with Hannah Fry

    By Katie Steckles and Peter Rowlett. Posted April 8, 2022

    Superegg, a type of oval-like solid

    A conversation about mathematics inspired by a superegg. Presented by Katie Steckles and Peter Rowlett, with special guest Hannah Fry. Podcast: Play in new window | Download Subscribe: RSS | List of episodes

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    Blackboard Bold, Reviews

    Review: Math Games With Bad Drawings

    By Katie Steckles. Posted April 5, 2022

    Photograph of the book cover. It's big (did we mention that) and yellow, and covered in drawings of jokes about games.

    Friend of the site and good writer/bad drawer Ben Orlin has recently released a new book, and we were kindly sent a copy to play with and review.

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