Professor Hamish McSporran (@hamishmcsporran.bsky.social)

The Carnival of Mathematics is a monthly blogging round up hosted by a different blog each month. The Aperiodical will be taking responsibility for organising a host each month, and links to the monthly posts will be added here. To volunteer to host a forthcoming Carnival (see below for months needing a host), please contact Katie. The Carnival of Mathematics accepts any mathematics-related blog posts, YouTube videos or other online content posted during the month: explanations of serious mathematics, puzzles, writing about mathematics education, mathematical anecdotes, refutations of bad mathematics, applications, reviews, etc. Sufficiently mathematized portions of other disciplines are also acceptable. An FAQ can be found at the bottom of this page. **Current:**Carnival****** 245 **will be hosted by Robin at Theorem of the Day, and the link will be posted here shortly 1**Next:** **Carnival of Maths 246** will be hosted by Tom at tommaths.blogspot.com, and submissions will close on **1st****December**. Click here to submit an item to Carnival 246 ## Future Carnival hosts: **Carnival 246** – December 2025: Tom at tommaths.blogspot.com **Carnival 247** – January 2026: Sanjeev at The Scribble Board **Carnival 248** – February 2026: hosted by Laura Walsh _We’re always looking for more Carnival hosts. If you’re interested,email us._ ## Previous Carnival of Mathematics posts: **Carnival 244** – October 2025: Ioanna at IoannaGeorgiou.com (please note: as per our standard policy, no Carnivals can be numbered using three-digit fifth powers) ****Carnival**2********42** – September 2025: Colin at Flying Colours Maths **Carnival 241** – July/August 2025: Katie at The Aperiodical **Carnival 240** – June 2025: Suzza at Beauty of Mathematics **Carnival 239** – May 2025: Karen at Reflections and Tangents **Carnival 238** – April 2025: Sophia at Fractal Kitty **Carnival 237** – March 2025: Colin at Flying Colours Maths ******Carnival 236****** – February 2025: Alexandre Muñiz at Puzzle Zapper****** Carnival 235****** – January 2025: hosted by John D Cook****** Carnival 234****** – December 2024: Robin at Theorem of the Day****** Carnival 233****** – November 2024: Jeremy at Math Intersect Programming****** Carnival 232****** – October 2024: Stormy at Storm Bear World****** Carnival 231****** – September 2024: Karen at Maths For Life****** Carnival 230****** – August 2024: Robin at Theorem of the Day****** Carnival 229****** – July 2024: Stephen at Cavmaths****** Carnival 228****** – June 2024: Ken at Girls’ Angle****** Carnival 227****** – May 2024: hosted by Ioanna at Ioanna Georgiou’s blog****** Carnival 226****** – April 2024: hosted by Tom at Tom Rocks Maths****** Carnival 225****** – March 2024: hosted by Fractal Kitty****** Carnival 224****** – February 2024: hosted by Stephen at Cavmaths****** Carnival 223****** – January 2024: hosted by George Shakan’s Data Science and Math Blog****** Carnival 222****** – December 2023: hosted by John D Cook****** Carnival 221****** – November 2023: hosted by Suzza at Beauty of Mathematics****** Carnival 220****** – October 2023: hosted by Nathalie at Infinitely Irrational****** Carnival 219****** – September 2023: hosted by Karen at Reflections and Tangents****** Carnival 218****** – August 2023: hosted by Tony at Tony’s Maths Blog****** Carnival 217****** – July 2023: hosted by Vaibhav at DoubleRoot****** Carnival 216****** – June 2023: hosted by Eddie at Eddie’s Math and Calculator Blog****** Carnival 215****** – May 2023: hosted by Cassandra at Cassandra Lee Yieng’s Blog****** Carnival 214****** – April 2023: hosted by Robin at Theorem of the Day****** Carnival 213****** – March 2023: hosted by Sam at SamHartburn.co.uk****** Carnival 212****** – February 2023: hosted by Ioanna at IoannaGeorgiou.com****** Carnival 211****** – December 2022/January 2023: hosted by Ganit Charcha****** Carnival 210****** – November 2022: hosted by Katie, here at The Aperiodical**** Carnival 209**** – October 2022: hosted by Jeremy at Math Intersect Programming**** Carnival 208**** – September 2022: hosted by James at AlephJamesA**** Carnival 207**** – August 2022: hosted by Sam at SamHartburn.co.uk**** Carnival 206**** – July 2022: hosted by Stormy at Storm Bear World**** Carnival 205**** – June 2022: hosted by Rob at Rob Eby’s Math Blog**** Carnival 204**** – May 2022: hosted by Sophie the Mathmo**** Carnival 203**** – April 2022: hosted by Ben at Math Off The Grid**** Carnival**202****** – March 2022: hosted by Sophia at Fractal Kitty**** Carnival 201**** – January/February 2022: hosted at Ganit Charcha**** Carnival 200**** – December 2021: hosted at The Aperiodical**** Carnival 199**** – November 2021: hosted by Vaibhav at DoubleRoot**** Carnival 198**** – October 2021: hosted by Kartik at Comfortably Numbered**** Carnival 197**** – September 2021: hosted by Jeremy at Math ∩ Programming**** Carnival 196**** – August 2021: hosted by Peter at Thatsmaths**** Carnival 195**** – July 2021: hosted by Stormy at Storm Bear World ****Carnival 194**** – June 2021: hosted by Mike at Walking Randomly**** Carnival 193**** – May 2021: hosted by Ben at Math Off The Grid**** Carnival 192**** – April 2021: hosted by Eddie at Eddie’s Math & Calculator Blog**** Carnival 191**** – March 2021: hosted by Sophia at Fractal Kitty**** Carnival 190**** – February 2021: hosted by Sophie the Mathmo**** Carnival 189**** – January 2021: hosted by the team at Ganit Charcha**** Carnival 188**** – December 2020: hosted by Sam Hartburn**** Carnival 187**** – November 2020: hosted by James at AlephJamesA **** Carnival 186**** – October 2020: hosted by Abhik Jain**** Carnival 185**** – September 2020: Mark at Apud Nimbum**** Carnival 184**** – August 2020: Tom at Tom Rocks Maths**** Carnival 183**** – July 2020: Fiona at Famous Mathematicians**** Carnival 182**** – June 2020: Zoe at ZoeLGriffiths.co.uk**** Carnival 181**** – May 2020: Ben at Math Off The Grid**** Carnival 180**** – April 2020: Kevin at kpknudson.com**** Carnival 179**** – March 2020: Paul at The Aperiodical**** Carnival 178**** – February 2020: Stormy at Storm Bear World**** Carnival 176/177**** – December 2019 & January 2020: the team at Ganit Charcha**** Carnival 175**** – November 2019: Pat & Steve at Woolly Thoughts & Mental Blocks**** Carnival 174**** – October 2019: Katie at aperiodical.com**** Carnival 173**** – September 2019: Peter at PeterKrautzberger.org**** Carnival 172**** – August 2019: Cassandra at Cassandra Lee Yieng’s blog**** Carnival 171**** – July 2019: William at MathTuition88**** Carnival 170**** – June 2019: Jim at Mathematical Enchantments**** Carnival 169**** – May 2019: Ari at Gereshes**** Carnival 168**** – April 2019: Ben at Math Off The Grid**** Carnival 167**** – March 2019: Tom at Tom Rocks Maths**** Carnival 166**** – February 2019: Ben at Math With Bad Drawings**** Carnival 165**** – January 2019: the team at Ganit Charcha**** Carnival 164**** – December 2018: the team at Life Through a Mathematician’s Eyes **** Carnival 163**** – November 2018: Elias at The Math Section**** Carnival 162**** – October 2018: the team at Chalkdust Magazine ****Carnival 161**** – September 2018: Alex at CoDiMa**** Carnival 160**** – August 2018: Robin at Theorem of the Day**** Carnival 159**** – July 2018: Kartik at Comfortably Numbered **Carnival 158 –** June 2018: Paul at The Aperiodical **Carnival 157** – April 2018: Becky at Lines, Curves, Spirals** Carnival 156** – March 2018: Robin at Theorem Of The Day** Carnival 155** – February 2018: Ben at Math Off The Grid** Carnival 154** – January 2018: Rachel at The Math Citadel **Carnival 153** – December 2018: the team at Ganit Charcha** Carnival 152** – November 2017: TD and Matthew at Chalkdust Magazine****************************************************** Carnival 151****************************************************** – October 2017: Frederick at White Group Mathematics****************************************************** Carnival 150****************************************************** – September 2017: Alexander at CoDiMa****************************************************** Carnival 149****************************************************** – August 2017: Mel at Just Maths****************************************************** Carnival 148****************************************************** – July 2017: Kartik at Comfortably Numbered****************************************************** Carnival 147****************************************************** – June 2017: Lucy at Cambridge Mathematics****************************************************** Carnival 146****************************************************** – May 2017: Peter at peterkrautzberger.org****************************************************** Carnival 145****************************************************** – April 2017: Katie at The Aperiodical****************************************************** Carnival 144 ******************************************************– March 2017: Frederick at White Group Mathematics****************************************************** Carnival 143 ******************************************************– February 2017:************************************************************************************************************ Robin at Theorem of the Day****************************************************** Carnival 142 ******************************************************– January 2017: Manan at Math Misery****************************************************** Carnival 141****************************************************** – December/January 2017: the team at Ganit Charcha****************************************************** Carnival 140 ******************************************************– November 2016: Tom at Mathematics and Coding****************************************************** Carnival 139****************************************************** – October 2016:************************************************************************************************************ Manjil at Gonit Sora****************************************************** Carnival 138 ******************************************************– September 2016: Yen Duong at Baking and Math****************************************************** Carnival 1****37****************************************************** – August 2016:******************************************************************************************************** Evelyn and Anna at the AMS Blog on Maths Blogs**************************************************** Carnival****136 –**************************************************** July 2016:**************************************************************************************************** Manan at Math Misery************************************************** Carnival****135************************************************** – June 2016: Gaurish at Gaurish4Math************************************************ Carnival****134** **********************************************– May 2016: Kartik at Comfortably Numbered********************************************** Carnival****133** ********************************************–**** April 2016: Matthew at Chalkdust Magazine******************************************** Carnival****132******************************************** – March 2016: Brent at The Math Less Travelled****************************************** Carnival****131****************************************** – February 2016: Katie at The Aperiodical**************************************** Carnival****130**************************************** – January 2016: Brian at Bit Player************************************** Carnival 129** – ************************************December 2015: the team at Ganit Charcha************************************ Carnival 128** **********************************– November 2015: Mike at Walking Randomly********************************** Carnival 127** ********************************– October 2015: Tom at Mathematics and Coding******************************** Carnival 126** ******************************– September 2015:************************************************************ Stephen at Cavmaths****************************** Carnival 125****************************** – August 2015: Nick at Data Genetics**************************** Carnival 124**************************** – July 2015: Manjil at Gonit Sora**************************** Carnival 123**************************** – June 2015: David at Mathematical Mystery Tour, Part 1 and Part 2************************** Carnival 122************************** – May 2015: Ed at Solve My Maths************************** Carnival 121************************** – April 2015: Ioana at Life Through a Mathematician’s Eyes************************ Carnival 120************************ – March 2015: Manan at Math Misery********************** Carnival 119 –********************** February 2015: Frederick at White Group Mathematics********************** **Carnival 118******************** – January 2015: Andrew at AndrewT.net****************** Carnival 117****************** – December 2014: Rachel at Plus Magazine**************** Carnival 116** **************– November 2014: Stephen at CavMaths************** Carnival 115************** – October 2014: William at MathTuition88************ Carnival 114************ – September 2014: Murray at SquareCirclez********** Carnival 113********** – August 2014: Mike at Walking Randomly******** Carnival 112******** – July 2014: Robin at Theorem of the Day******** Carnival 111******** – June 2014: Peter at Boole’s Rings****** Carnival 110****** – May 2014: Colin at Flying Colours Maths**** Carnival 109**** – April 2014: Tony at Tony’s Maths Blog**** Carnival 108**** – March 2014: John at Math Hombre**** Carnival 107**** – February 2014: Frederick at White Group Mathematics**** Carnival 106**** – January 2014: Katie at Blackboard Bold**** Carnival 105**** – December 2013: Oluwasanya at Mathemazier**** Carnival 104**** – November 2013: Shecky R at Math-Frolic**** Carnival 103**** – October 2013: Evelyn at Roots of Unity**** Carnival 102**** – September 2013: Michelle at My Summation** Carnival 101** – August 2013: Aperiodical team, at The Aperiodical**** Carnival 100**** – July 2013: Richard Elwes at Simple City** Carnival 99** – June 2013: Sol at Wild About Math** Carnival**98** **– May 2013: Andrew at andrewt.net/blog**** Carnival 97**** – April 2013: Colin at Flying Colours Maths**** Carnival 96** **– March 2013: Sue at Math Mama Writes.** Carnival 95** – February 2013: Jorge at Maths Fact** Carnival 94** – January 2013: Paul at The Aperiodical** Carnival 93 –** December 2012: Tosin at X in Vogue ****Carnival 92**** – November 2012: Frederick at White Group Mathematics**** Carnival 91**** – October 2012: Owen at Matheminutes**** Carnival 90**** – September 2012: Mike at Walking Randomly**** Carnival 89**** – August 2012: Katie at The Aperiodical**** Carnival 88**** – July 2012: at cp’s mathem-o-blog**** Carnival 87** **– June 2012: John at Random Walks** Carnival 86** – May 2012: Brent at The Math Less Travelled** Carnival 85** – April 2012: Peter at Travels in a Mathematical World** Carnival 84** – December 2011: Guillermo at Mathematics and Multimedia** Carnival 83** – November 2011: Karyn at Teach Beside Me** Carnival 82** – October 2011: at the Vedic Maths Forum Blog **Carnival 81** – September 2011: Sol at Wild About Math **Carnival 80** – August 2011: Mike at Walking Randomly **Carnival 79** – July 2011: John at The Endeavour **Carnival 78** – June 2011: at JimWilder.com **Carnival 77** – May 2011: Fëanor at Jost A Mon **Carnival 76** – April 2011: Mike at Walking Randomly **Carnival 75** – March 2011: Daniel Colquitt **Carnival 74** – February 2011: Mike at Walking Randomly **Carnival 73** – January 2011: Mike at Walking Randomly **Carnival 72** – December 2010: Batman at Three Sixty **Carnival 71** – November 2010: at Theorem of the Day **Carnival 70** – October 2010: Daniel Colquitt (link broken; reposted 31/03/2012 at Mathematical Musings Tumblr) **Carnival 69** – September 2010: Jonathan at JD2718 **Carnival 68** – August 2010: at Plus Magazine **Carnival 67** – July 2010: Peter at Travels in a Mathematical World **Carnival 66** – June 2010: Sol at Wild About Math **Carnival 65** – May 2010: Edmund at Maxwell’s Demon **Carnival 64** – April 2010: Mike at Walking Randomly **Carnival 63** – March 2010: Dan at Math Recreation **Carnival 62** – February 2010: John at The Endeavour **Carnival 61** – January 2010: Mike at Walking Randomly **Carnival 60** – December 2009: Nick at Sum Idiot **Carnival 59** – November 2009: Jason at The Number Warrior **Carnival 58** – September 2009: Mike at Walking Randomly **Carnival 57** – September 2009: Batman at Three Sixty **Carnival 56** – August 2009: Rod Carvalho **Carnival 55** – July 2009: at Sowerby Maths (link broken) **Carnival 54** – July 2009: Todd and Vishal at Topological Musings **Carnival 53** – June 2009: Brent at The Math Less Travelled **Carnival 52** – May 2009: Jason at The Number Warrior **Carnival 51** – April 2009: Murray at SquareCircleZ **Carnival 50** – February 2009: John at The Endeavour **Carnival 49** – February 2009: Batman at Three Sixty **Carnival 48** – January 2009: yanzhang at Concrete Nonsense **Carnival 47** – January 2009: Jonathan at JD2718 **Carnival 46** – Deceber 2008: Mike at Walking Randomly **Carnival 45** – December 2008: at TCM Technology Blog (private link) **Carnival 44** – November 2008: Edmund at Maxwell’s Demon **Carnival 43** – November 2008: Jason at The Number Warrior **Carnival 42** – October 2008: John at The Endeavour **Carnival 41** – October 2008: Batman at Three Sixty **Carnival 40** – September 2008: Barry at Staring at Empty Pages **Carnival 39** – August 2008: A at It’s the Thought That Counts **Carnival 38** – August 2008: at CatSynth **Carnival 37** – July 2008: Ian at Logic Nest **Carnival 36** – July 2008: Charles at Rigorous Trivialities **Carnival 35** – June 2008: at CatSynth **Carnival 34** – May 2008: Batman at Three Sixty **Carnival 33** – May 2008: Mike at Walking Randomly **Carnival 32** – May 2008: at TCM Technology Blog (private link) **Carnival 31** – April 2008: Jeffrey at Recursivity **Carnival 30** – April 2008: Jason at The Number Warrior **Carnival 29** – March 2008: Jordan at Quomodocumque **Carnival 28** – March 2008: Tyler and Foxy at Tyler and Foxy’s Scientific and Mathematical Adventure Land **Carnival 27** – February 2008: Jonathan at JD2718 **Carnival 26** – February 2008: Batman at Three Sixty** Carnival 25** – January 2008: Mike at Walking Randomly** Carnival 24** – January 2008: Walt at Ars Mathematica** Carnival 23** – December 2007: Brent at The Math Less Travelled** Carnival 22** – December 2007: Sol at Wild About Math** Carnival 21** – December 2007: Ben at Secret Blogging Seminar **Carnival 20** – November 2007: Murray at SquareCircleZ** Carnival 19** – October 2007: Mark at Good Math, Bad Math** Carnival 18** – October 2007: Jonathan at JD2718** Carnival 17** – Septmber 2007: Dave at MathNotations** Carnival 16** – September 2007: Kurt at Learning Computation **Carnival 15** – August 2007: John at JohnKemeny.com **Carnival 14** – August 2007: Vlorbik at MathEdZineBlog** Carnival 13** – July 2007: Polymath at Polymathematics** Carnival 12** – July 2007: at the Vedic Maths Forum Blog** Carnival 11** – June 2007: Pi Guy at Grey Matters** Carnival 10** – June 2007: Dave at MathNotations** Carnival 9** – June 2007: Jonathan at JD2718** Carnival 8** – May 2007: Suresh at Geomblog** Carnival 7** – May 2007: Arunn at Nonoscience **Carnival 6** – April 2007: Graeme at Modulo Errors **Carnival 5** – April 2007: Charles at Science and Reason **Carnival 4 –** March 2007: Jason at EvolutionBlog **Carnival 3** – March 2007: Michi at Michi’s Blog **Carnival 2** – February 2007: Mark at Good Math, Bad Math (Archived page) **Carnival 1** – February 2007: Alon at Abstract Nonsense ## **Carnival of Mathematics FAQ:** ### When are the carnivals published? The Carnival of Mathematics gets published during the first week of the month (or as soon after that as the host gets time to do it). Posts are collected during the month, and on or around 1st of the month, new posts coming in get directed to the following month’s host. ### I would like to host a carnival at my blog. What should I do? Check the list of upcoming Carnival hosts above, and then contact Katie to let her know you’re interested. If you’d like to include the Carnival logo in your post, please do (and here’s a version for on a non-white background). ### Who does the admin for the Carnival? The Carnival of Mathematics is organised by the Aperiodical. The Aperiodical will be taking responsibility for organising a host each month, and links to the monthly posts will be added here. ### I’ve found a cool maths article that someone else has written. Can I submit it to the carnival? Yes, but it should be a recent post (new in the last month) and should have never been submitted to the carnival before. ### Do Carnival submissions have to be blog posts? No! We’re happy to take links to YouTube videos, social media posts or threads, standalone websites or other forms of online content – as long as it’s new this month. ### Who decides what gets included in a Carnival and what doesn’t? The carnival hosts do! The carnival is just a guest on the host’s blog, and so what each host writes is entirely up to them. In general, most carnival hosts will include almost everything that is submitted to them and a bit more besides. However, if they choose NOT to link to something, then so be it. ### Will the Carnival of Mathematics take articles on basic maths? Yes — everything from pre-school maths to cutting edge research is fair game for the Carnival of Maths. We also accept submissions related to recreational maths, mathematical art, and puzzles and games with a mathematical flavour. ### Do you accept articles from subjects such as computer science or physics? As long as there is a reasonable amount of maths content, then yes. ### Is there anything else I need to do, besides submitting my article? No, there is nothing else you have to do. When the Carnival is published, however, you may want to post a link to it on your blog. The carnival host will appreciate your support, and your readers will enjoy a chance to browse what other maths bloggers have written. ### Does the carnival have a social media feed? Yes. You can see regular posts on Mastodon @[email protected], BlueSky @CarnivalofMaths.bsky.social and (if you must) on Twitter at @CarnivalOfMath. ### Can a Carnival be numbered with a number that’s a three-digit number and also a fifth power? No. https://aperiodical.com/carnival-of-mathematics/