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Peter Rowlett

@peterrowlett.net
2.2K followers 2.4K following 320 posts

I teach maths and computing at a UK university and work as a maths communicator. Sheffield/Nottingham based. Editor, The Mathematical Gazette. Aperiodical blog, Mathematical Objects podcast. Part of finitegroup.co.uk peterrowlett.net

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Peter Rowlett @peterrowlett.net · 4h
aperiodical.com
Aperiodical News Roundup – August/September 2026
Here’s a round-up of some news from the last couple of months.
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Peter Rowlett @peterrowlett.net · 27/09/2026
Such a wonderful time-saver and great research tool, these #genAI chatbots. 🙄
Anonymized by DuckDuckGo. Zero data retention for this chat. No AI training.
where do you get the date 14 October from? I can't see it in any of the links given
GPT-5.6 Luna: 
You’re right—you can’t see it because 14 October was unsupported. I incorrectly presented a specific date that wasn’t stated in the available sources.
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Tommaths (he/him) @teakayb.mathsy.space · 26/09/2026
I've got one copy of *The Mathematicians' Library* to give away in each of four languages: Polish, German, Japanese, and Spanish. I'm offering them for free (including UK postage) & I'd like them to go somewhere that'd make good use of them. If you think *your* organisation or group would...
Four editions of The Mathematicians’ Library are arranged on a patterned surface: the Polish edition, German edition, Japanese edition and Spanish edition. The Polish and Spanish covers feature a Renaissance-style astronomical diagram with a Vitruvian figure, while the German edition has a vivid purple-and-pink fractal design and the Japanese edition shows colourful abstract mathematical forms.
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Fabstract Nonsense @alexcorner.bsky.social · 15/09/2026
We wrote a book!
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Peter Rowlett @peterrowlett.net · 15/09/2026
My forthcoming book with @alexcorner.bsky.social has a cover!
routledge.com
Game Theory and Recreational Mathematics: A Playful Approach to Problem Solving and Inquiry
Game Theory and Recreational Mathematics views mathematics through a lens of puzzles and games, with a strong focus on creative problem solving. The book sets the scene for discrete mathematics by int...
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Matthew Scroggs @mscroggs.co.uk · 09/09/2026
I finally remembered to but my ticket for this year's @bigmathsjam.bsky.social today. If you've not been before, it's an excellent weekend of maths fun and you should definitely come. Details and ticket booking at mathsjam.com/gathering/uk/.
mathsjam.com
MathsJam UK Gathering | MathsJam
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Peter Rowlett @peterrowlett.net · 24/08/2026
Went to the Boole memorial in Lincoln. Boole is teaching two children some logic. One has a slate labelled “ALICIA”, his daughter’s name. Any ideas why the other is labelled “TAD”? (It amused me that while Tad is copying from the board, Alicia, who became a 4D geometer, is drawing some geometry.)
Statues. Boole stands by a blackboard before two children who are writing on slates. Slate labelled TAD, a hand draws x=x^2.Slate labelled ALICIA, hand drawing lines.
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Peter Rowlett @peterrowlett.net · 05/08/2026
The new issue of The Mathematical Gazette has arrived! My second as editor. 😁 My editorial discusses what the journal is about and who reads it. It and six other articles from the issue are free to read online here: www.tandfonline.com/toc/tmgz20/1... @amiemathematics.bsky.social
Issue of The Mathematical Gazette on an envelope. Volume 110, number 576, July 2026.
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Peter Rowlett @peterrowlett.net · 27/07/2026
You can trust quality that’s built on careful attention to detail.
Orange cardboard box labelled “White board erasers”. Slogan on the side reads “Quality mades the difference”.
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Peter Rowlett @peterrowlett.net · 23/07/2026
I continue to wonder about utility of #genAI. I gave Claude some text I wrote and asked it to find and add suitable references. In the response it gave some warnings that straight-up assumed I am a student cheating on an assignment. 🤯
The Birmingham and Liverpool items are institutional web guides/case studies rather than peer-reviewed articles (hence the "n.d." and author uncertainty on the Birmingham one) — check your assignment allows practice-based/grey literature, or swap in a peer-reviewed equivalent if not.
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Peter Rowlett @peterrowlett.net · 22/07/2026
Not exactly showing the power of the Approximation Day Bot, but it’s a biggy. Question is: what happens on the other days of the year? The answer is silliness - give it a follow and find out!
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Peter Rowlett @peterrowlett.net · 19/07/2026
My son got a calculator for secondary school in the autumn, so we took it for a test. He drew a series of triangles and measured the sides, then worked out their ratios and plotted them. Then we tried some other buttons on the calculator and discovered sin, cos and tan make the same values! #tmwyk
Table of values - ratios of triangle sides and sin, cos and tan, for angles 10, 20 up to 70. These are plotted.
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Peter Rowlett @peterrowlett.net · 17/07/2026
Heading home from my last school visit of the year. Since Sept 25 I have delivered 10 events on campus, visited 9 schools & done 1 online talk, to over 1300 students from years 7-13. A mixture of maths careers talks & workshops on modelling, problem solving, cryptography, games and history of maths.
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Peter Rowlett @peterrowlett.net · 10/07/2026
Take note, everyone.
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Peter Rowlett @peterrowlett.net · 07/07/2026
If you're looking for somewhere to start, the top episodes by downloads of Mathematical Objects are: 1. Low bridge sign with Adam Townsend 2. Mathematics in Theory and Practice, edited by Warwick Sawyer 3. Fingers with Ben Orlin 4. A sheep, at least one side of which is black 5. Towers of Hanoi
aperiodical.com
Mathematical Objects Podcast – list of episodes
Katie Steckles and Peter Rowlett chat about some aspect of mathematics using a mathematical object as inspiration. Subscribe: Apple Podcasts | Android | Spotify | RSS. All episodes are available un…
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Peter Rowlett @peterrowlett.net · 03/07/2026
What is The Mathematical Gazette about? Who is it for? I discuss this, drawing on words from previous editors, in my editorial for the new issue. Free to access here: www.tandfonline.com/doi/full/10....
What is it about?

The Gazette publishes mathematical content, including new results. However, it is not simply a minor mathematics research journal. It is not the venue for your proof of a result that has been rejected from a research journal as too obscure or uninteresting.

Equally, though it is focussed on teaching, it is not an educational research journal. It is not the right place for the results of your randomised controlled trial of a new teaching innovation.

Mathematical expositions and meditations on teaching should exhibit something more to make them suitable for the Gazette. I was pleased to see this issue addressed by Alan Broadbent in 1965: ‘our field is not that of mathematics alone, nor that of teaching alone; it is the combination, the teaching of mathematics’.
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Peter Rowlett @peterrowlett.net · 02/07/2026
What on earth happened here? This is earlier today. I was at a bus stop in a village about 7.5 miles from Nottingham and asked Google Maps for public transport directions to Nottingham.
Directions start by getting a Bolt for 21 minutes 7.4 miles to Nottingham railway station, then getting the train towards Leicester.Get the train for 16 mins to East Midlands Parkway, then walk for 3 hours 25 minutes (9.3 miles) to Nottingham.
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Association for Mathematics in Education @amiemathematics.bsky.social · 17/06/2026
Can you solve this puzzle? Robin McLean explores the algebra of constructing puzzles like this in a new #openaccess article in The Mathematical Gazette. Read here: www.tandfonline.com/doi/full/10....
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Katie Steckles @steckl.es · 16/06/2026
Next Thursday 25th June, I'm doing a livestream with @Ayliean.bsky.social about aperiodic tilings - we'll be chatting about substitution tilings and matching rules, and chatting about the recent #BeachSpectres project! If you'd like to watch, simply join our Finite Group community: finitegroup.co.uk
finitegroup.co.uk
Finite Group
Finite Group is a collective of cool maths people who want to have nice conversations about mathematical ideas.
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Peter Rowlett @peterrowlett.net · 15/06/2026
Particularly mathematical Birthday Honours 2026 #MathsToday
aperiodical.com
Particularly mathematical Birthday Honours 2026
The UK Government have announced the new set of King’s Birthday Honours. Here’s our selection of particularly mathematical entries for this year. If you spot any more, let us know in the comments a…
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Peter Rowlett @peterrowlett.net · 12/06/2026
Ooo, my piece has appeared online here Mathematical Gazetteer of the British Isles David Singmaster's Gazetteer, Green's Windmill, and more. #MathsToday
ima.org.uk
Mathematical Gazetteer of the British Isles
What do you do to find places to visit when travelling? Consult a guidebook? Search Google Maps? Look at reviews on TripAdvisor? Early in my career, when
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Peter Rowlett @peterrowlett.net · 11/06/2026
Maths on Holiday - new issue of the IMA members’ magazine, in which I wrote about David Singmaster’s Gazeteer, Green’s Windmill, that time Sam Hansen came to town, etc.
Mathematics Today magazine Maths on Holiday Special Issue.Mathematical Gazetteer of the British Isles
Peter Rowlett Math FIMA, Sheffield Hallam University
What do you do to find places to visit when travelling? Consult a guidebook? Search Google Maps? Look at reviews on TripAdvisor?
Early in my career, when I used to travel a lot to visit universities around the UK, I would often look up the places I was visiting in the Mathematical Gazetteer of the British Isles. This is an alphabetical listing of place names, and each has some information about mathematical places of interest and the mathematicians who were born, died, worked or visited there.
These were collected and published by the late David Singmaster in the BSHM Newsletter of the British Society for the History of Mathematics. Singmaster explained that he had been collecting information 'for some years' already by the time of the first publication [1]. The series was published in 18 parts from
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Peter Rowlett @peterrowlett.net · 08/06/2026
Quick update from #BeachSpectres from @ayliean.bsky.social - join Finite Group for free to access the video. patreon.com/posts/beach-...
Ayliean on beach next to board that says “Aperiodic Monotile!” She’s saying “Hello, Finite Group”.
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Peter Rowlett @peterrowlett.net · 01/06/2026
Optimal play in ‘Guess Who?’ #openaccess in The Mathematical Gazette Suggests using questions with an embedded paradox to produce three responses from your opponent - yes, no, or argh paradox head explodes - allowing you to narrow down the suspects more quickly. www.tandfonline.com/doi/full/10....
tandfonline.com
Optimal play in ‘Guess Who?’
We prove an optimal strategy for the children's game Guess Who? assuming the official rules are in use and that both players ask ‘classical’ questions with bipartite responses. Applying a technique...
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Peter Rowlett @peterrowlett.net · 21/05/2026
Teachers! We're running a day of year 12 maths workshops on 25th June on campus in Sheffield city centre. Bring a group? They'll see the university campus and enjoy taking part in maths workshops run by university lecturers. shuoutreach.com/event/explor... #MathsToday #AlevelMathematics
shuoutreach.com
Exploring Maths Experience Day
Maths has always been a vital tool to understand the world around us, as well as a playful and creative way to engage our curiosity. Come along to our Exploring Maths days to glimpse the world that…
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Peter Rowlett @peterrowlett.net · 12/05/2026
Could we rely more on everyday intuitions when thinking about abstract ideas? Does the formalism seen when teaching match how mathematicians think about mathematics? Letters to the editor in response (in support or arguing against!) are welcome via gazette@amie.org.uk
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Association for Mathematics in Education @amiemathematics.bsky.social · 12/05/2026
Free paper available from The Mathematical Gazette: Why do disjoint cycles commute? Or, why do mathematicians not like horsies and doggies? by Douglas Hofstadter, author of 'Gödel, Escher, Bach' - which won a Pulitzer Prize in 1980. Read it here: www.tandfonline.com/doi/epdf/10....
tandfonline.com
Why do disjoint cycles commute? Or, why do mathematicians not like horsies and doggies?
by Douglas Hofstadter
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Peter Rowlett @peterrowlett.net · 06/05/2026
Just spotted a new edition of the Comprehensive LaTeX Symbols List has been published and it contains my package customdice! ctan.org/pkg/comprehe...
customdice entry, table 719 in the link.
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Peter Rowlett @peterrowlett.net · 30/04/2026
Went to Green’s Windmill this evening for a members’ event. All wrapped up for major repairs to redo the cap and sails. Visitor numbers understandably down this year. Donations to help welcome: www.greensmill.org.uk/support-us/d...
Windmill covered in scaffolding. Windmill covered in scaffolding.
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Peter Rowlett @peterrowlett.net · 21/04/2026
My son (10)’s homework asked him for two common multiples of 3 and 4. He put 12 and 0. It marked him wrong. Unsure how to feel about that.
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Peter Rowlett @peterrowlett.net · 13/04/2026
I’m on my way to give a talk to Sheffield U3A’s Science & Technology Group, about board games through the ages with a bit of game theory thrown in.
Games and their analysis from prehistory to today, Peter Rowlett, Sheffield Hallam University. Tomb wall illustration of an Egyptian queen playing a board game.
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Peter Rowlett @peterrowlett.net · 11/04/2026
In London for this. Looking forward to meeting readers, authors and reviewers of The Mathematical Gazette.
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Peter Rowlett @peterrowlett.net · 07/04/2026
The first issue of The Mathematical Gazette with me as Editor has arrived in the post! Non-subscribers can read my editorial (and some other papers in this issue) for free at www.tandfonline.com/doi/full/10.... #MathsToday #MTBoS #ITeachMath
First inside pages of the issue, showing the editorial board, information about the journal and the opening of the editorial.
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Katie Steckles @steckl.es · 03/04/2026
Even better news: for this month only, the Finite Group is even more finite! If you sign up for a paid membership in April, you can get a 50% discount on your first month using the code 3VMFN. You'll get this month's stream, plus the last three months of recordings, AND a crossnumber. Bargain!
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Katie Steckles @steckl.es · 02/04/2026
If anyone would like to join our online maths community, it's free to join our Discord chat, and we have paid memberships at £4/mo which get you access to monthly livestreams/recordings of fun 1-hour maths chats! Here's a video showing some clips from recent streams: www.youtube.com/watch?v=CveA...
youtube.com
Finite Group - Highlights Video 2026
Finite Group is a collective of cool maths people who want to have nice conversations about mathematical ideas. Join our community to support and participate in our live monthly-ish video chats, as…
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Peter Rowlett @peterrowlett.net · 31/03/2026
For a while I've been enjoying hanging out and chatting maths with @steckl.es @ayliean.bsky.social @mscroggs.co.uk at the Finite Group. Find out what happens at a Finite Group livestream - new highlights video f. @katdoesmaths.bsky.social @jamesgrime.com How to join: finitegroup.co.uk#join
youtube.com
Finite Group - Highlights Video 2026
YouTube video by Finite Group
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Peter Rowlett @peterrowlett.net · 18/03/2026
My first issue of The Mathematical Gazette as editor has been published! My editorial talks about some of the many changes that the journal and I have been through since the last issue. @amiemathematics.bsky.social
tandfonline.com
A time of change
Published in The Mathematical Gazette (Vol. 110, No. 577, 2026)
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Peter Rowlett @peterrowlett.net · 15/03/2026
10 years after he created it, Christian Lawson-Perfect offers some analysis of the Is this prime? game.
aperiodical.com
10 years of the “Is this prime?” game – time to analyse more results
Can you believe it’s been 10 years since I made the “Is this prime?” game? I sort of can, because I set myself a reminder about it in my calendar. Back in 2016, the game had been …
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Peter Rowlett @peterrowlett.net · 24/02/2026
Topic of the week in the finitegroup.co.uk Discord - here @ayliean.bsky.social explains @wordle-tetris.bsky.social.
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Peter Rowlett @peterrowlett.net · 13/02/2026
New podcast episode! To round of season 9 of our Mathematical Objects, @steckl.es and I enjoy chewing over the folklore that developed around the absent-minded professor caricature. #MathsToday
aperiodical.com
Mathematical Objects: A Norbert Wiener Story
A conversation about mathematics inspired by a piece of folklore. Presented by Katie Steckles and Peter Rowlett.
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Peter Rowlett @peterrowlett.net · 09/02/2026
My son (10)’s spelling homework this week was words ending “cial” or “tial”. One of them was “artificial”. I asked if he knows what it means. He said “it’s the A in AI. It means fake”.
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Peter Rowlett @peterrowlett.net · 09/02/2026
A student of mine has been investigating the history of the journal I'm now editing. She reviewed a previous history published in 1996, and covered the intervening period by interviewing the last two editors and the production editor. The resulting paper is now published online.
tandfonline.com
A brief history of The Mathematical Gazette: thirty years later
This article revisits the history of The Mathematical Gazette, extending earlier accounts by examining developments since the publication of Michael Dampier’s ‘The Mathematical Gazette: a brief his...
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Erick Lee @theericklee.bsky.social · 31/01/2026
I really enjoyed listening to your conversation with @nhoskee.bsky.social. This podcast episode was thought provoking and insightful.
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Peter Rowlett @peterrowlett.net · 30/01/2026
Pick up a copy of New Scientist this weekend, or go to the website (subscription or via your library), and you’ll find me writing about Snakes and Ladders and analysis of games of chance.
Mathematics of life
Reaching the top
While snakes and ladders is purely a game of chance, there is a way to bring strategy into it, says mathematician Peter Rowlett
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Peter Rowlett @peterrowlett.net · 30/01/2026
New podcast episode! @steckl.es and I have an interesting chat about maths, what it is, and how to communicate that, with @nhoskee.bsky.social inspired by the Public Math 'certified mathematical object' stickers. aperiodical.com/2026/01/math...
aperiodical.com
Mathematical Objects: Certified Mathematical Object sticker with Chris Nho
A conversation about mathematics and communicating mathematics inspired by a ‘Certified Mathematical Object’ sticker. Presented by Katie Steckles and Peter Rowlett, with special guest C…
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Peter Rowlett @peterrowlett.net · 28/01/2026
A call for people to write for The Mathematical Gazette, and a plea for volunteers to peer review, from @amiemathematics.bsky.social. It's the journal I edit, behind the scenes we're getting ready to publish my first issue!
m-a.org.uk
Mathematical Association - News Detail
News
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Maths.scot @maths.scot · 18/01/2026
See what his teacher makes of e.π^e. 🤣
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Peter Rowlett @peterrowlett.net · 18/01/2026
What’s your answer here? My son got it from school. He said 65. Very boring! I was wondering about 20π. #MathsToday
Write a number in the box to make this correct. 3/5 < box over 100 < 0.7
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Peter Rowlett @peterrowlett.net · 16/01/2026
New podcast episode! @steckl.es tells me about the maths of taxicabs. Search ‘Mathematical Objects’ where you get podcasts, or get it here:
aperiodical.com
Mathematical Objects: A taxicab
A conversation about mathematics inspired by a taxicab. Presented by Katie Steckles and Peter Rowlett.
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Peter Rowlett @peterrowlett.net · 13/01/2026
Report: people think using numbers is an important skill, more than half enjoy doing it (almost as many as enjoy reading), many don't score well but people want to improve their and their kid's abilities. richmondproject.org/wp-content/u... Telegraph article ($): everyone's terrible at maths
telegraph.co.uk
Think you’re good at maths? Here’s why your claim may not add up
Sixty per cent of adults think they are good at maths but only 40 per cent scored highly in a research test
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