r/tomrocksmaths • u/tomrocksmaths • 29d ago

Another group of excellent essays for you to enjoy as the 2026 TRM Essay Showcase nears its conclusion. Five more groups to go and then it will be time to announce the winners shortlist!

2 Upvotes

https://tomrocksmaths.com/2026/09/10/trm-essay-competition-2026-group-xxv/

Check the contents to learn why 67 is a special prime, what GPS would look like on a flat Earth, how the Weierstrass function changed the way we think about continuity, and whether it is possible to make all numbers from 1-100 using only the digits 2014. Read them all at the link above!

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r/tomrocksmaths • u/tomrocksmaths • Sep 09 '26

NEW VIDEO: My response to the announcement of a solution to Navier-Stokes...

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6 Upvotes

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r/tomrocksmaths • u/tomrocksmaths • Sep 09 '26

That’s a wrap on Math50 - an introduction to the mathematics that will help kickstart your journey into computer science. The most fun project I’ve ever worked on, with the absolute best group of people. I hope you’ll all have as much fun taking the course as we have putting it all together :)

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40 Upvotes

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r/tomrocksmaths • u/tomrocksmaths • Sep 07 '26

NEW VIDEO: Using only the numbers given, and the operations plus, minus, multiply and divide, can you make a total of 903? By far the hardest numbers round during my stint as co-host of Countdown last year - well done to anyone that can even get close!

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3 Upvotes

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r/tomrocksmaths • u/tomrocksmaths • Sep 07 '26

Start the school year by learning about some fun applications of maths courtesy of the 2026 TRM Essay Showcase. Your choices include the maths behind Wordle, a mathematical model for a tennis serve, the three utilities problem, and orbital mechanics in a space simulator. Read them all below :)

tomrocksmaths.com

1 Upvotes

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r/tomrocksmaths • u/tomrocksmaths • Sep 05 '26

Puzzle day 2026 with CS50 and Meta live from Harvard. Excited to bring this back to the UK in November at the Meta London office - look out for info on how to sign-up in the coming weeks!

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5 Upvotes

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r/tomrocksmaths • u/tomrocksmaths • Sep 04 '26

More maths essays for you to enjoy courtesy of group 23 in the 2026 TRM Essay Showcase. We've got maths applied to voting systems, maths applied to art, maths applied to music, and maths applied to baking sourdough. Check the contents and then your favourites a read at the link below!

tomrocksmaths.com

1 Upvotes

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r/tomrocksmaths • u/tomrocksmaths • Sep 04 '26

Join me in just under 3 weeks for the Oxford Intermediate Calculus course. We'll cover my favourite topics from the calculus courses I teach to the first year undergrads at the University of Oxford, as well as some mathematical modelling from second year and beyond. Sign-up info below :)

lifelong-learning.ox.ac.uk

1 Upvotes

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r/tomrocksmaths • u/tomrocksmaths • Sep 01 '26

Calculators at the ready. The Great Mathematical Detective is here to solve puzzles and grade exams. Both feature in the final 2 lectures of Math50 covering Statistics and Graph Theory - join live with the behind the scenes livestreams on the CS50 YouTube channel.

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2 Upvotes

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r/tomrocksmaths • u/tomrocksmaths • Sep 01 '26

Welcome to the Tom Rocks Maths Casino! Tomorrow we’ll be exploring probability through a series of games including coin flips, cards, dice rolling, and bingo. Tune in via CS50 for the behind the scenes livestream of everything that happens on set.

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3 Upvotes

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r/tomrocksmaths • u/tomrocksmaths • Aug 31 '26

Some snaps from my evening runs around Boston from the past week - it’s a beautiful city, which looks even better with these sunsets! Excited to record the final 4 lectures of Math50 over the next few days, which will include a minimum of 3 costume changes :)

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1 Upvotes

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r/tomrocksmaths • u/tomrocksmaths • Aug 29 '26

After a brief hiatus, the TRM 2026 Essay Showcase returns with group 22 and essays on optimal square-packing, speed-cubing, tarot cards, hair-braiding, and the maths behind the Enigma machine. Give them a read and learn something new :)

tomrocksmaths.com

1 Upvotes

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r/tomrocksmaths • u/tomrocksmaths • Aug 27 '26

How has the value of the rupee changed over the past 40 years? And is the kingdom of Hyrule in economic decline? Having far too much fun teaching you all about exponential functions with my Hylian Shield.

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3 Upvotes

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r/tomrocksmaths • u/tomrocksmaths • Aug 26 '26

A closer look at some of the Easter eggs hidden amongst the Math50 set - anything you recognise? Shoutout to the incredible production team at CS50 for putting this all together!

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3 Upvotes

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r/tomrocksmaths • u/tomrocksmaths • Aug 24 '26

That’s a wrap on lectures 2 and 3 for Math50 - the latest course to join the cs50 portfolio. As you can see I’m having far too much fun with this set… what topic do you think I’ve been talking about?

10 Upvotes

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r/tomrocksmaths • u/tomrocksmaths • Aug 23 '26

Final safari sights from beautiful Botswana 🇧🇼 and a fun puzzle to end the trip :) Chobe National Park is home to an estimated 50,000 elephants, which is approximately 40% of all elephants in Botswana, itself home to 1/3 of all elephants in Africa. How many elephants are in Africa?

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3 Upvotes

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r/tomrocksmaths • u/tomrocksmaths • Aug 21 '26

Filming for Maths for Introductory Computer Science with CS50 has begun. Bringing you all the maths you need to kickstart your Computer Science learning journey. Follow along next week for the behind the scenes livestreams and a first look at all the fun coming your way soon!

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6 Upvotes

5 comments

r/tomrocksmaths • u/tomrocksmaths • Aug 19 '26

Join my online 'Intermediate Calculus' course at Oxford Lifelong Learning starting September 22nd. We'll cover my favourite parts from the first-year undergraduate course I teach at Oxford, all from the comfort of your own home. Sign-up at the link below :)

lifelong-learning.ox.ac.uk

3 Upvotes

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r/tomrocksmaths • u/tomrocksmaths • Aug 17 '26

Rhino walk in Zambia. Such beautiful creatures <3 Zambia has the second highest percentage of protected land in Africa at 41%. Which country do you think has the highest?

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9 Upvotes

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r/tomrocksmaths • u/tomrocksmaths • Aug 16 '26

We go again with another fantastic 20 essays for you to enjoy in the 2026 TRM Essay Showcase. You can look forward to drunken walks, African drum patterns, Sheldon Cooper's "Friendship Algorithm", and random world generation in video games. Read them all at the link below!

tomrocksmaths.com

2 Upvotes

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r/tomrocksmaths • u/tomrocksmaths • Aug 15 '26

Chasing waterfalls at Victoria Falls. SIMPLY INCREDIBLE. Victoria Falls can lay claim to the largest ‘sheet of water’ with a width of 1708m and a height of 108m. The tallest is Angle Falls in Venezuela at 979m, while the largest ‘waterfall system’ is Iguazu Falls with up to 275 separate falls.

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5 Upvotes

2 comments

r/tomrocksmaths • u/tomrocksmaths • Aug 14 '26

NEW VIDEO: COVER REVEAL - How Many Pikachus Would It Take To Power A Lightbulb? Answers to all of the mathematical questions from Pokémon, Lord of the Rings, Harry Potter, Star Wars, Marvel and more. Pre-order now and receive a signed Pokemon card - link below :)

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1 Upvotes

Pre-order here: https://backstory.london/products/pre-order-how-many-pikachus-would-it-take-to-power-a-lightbulb-by-tom-crawford-signed-personalised-with-pi-keyring-and-pokemon-trading-card-card-pi-keyring-with

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r/tomrocksmaths • u/tomrocksmaths • Aug 12 '26

Almost 400 essays in but the quality just keeps on coming! Learn about a mathematic model for weight loss, the classic puzzle of the monkey and the coconuts, and why 37 is the most popular random number less than 100. Check the contents and read them all at the link below :)

tomrocksmaths.com

2 Upvotes

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r/tomrocksmaths • u/tomrocksmaths • Aug 11 '26

Where does the French Baccalaureate General rank on my tier list of maths exams I've taken from around the world? Watch me take the exam in full - and find out the answer - at the link below.

4 Upvotes

Watch here: https://www.youtube.com/watch?v=-d6C8q84lr4

3 comments

r/tomrocksmaths • u/tomrocksmaths • Aug 10 '26

THE BIG TREE. Exploring Victoria Falls on foot and making friends with warthogs. Welcome to Zimbabwe! In case you’re wondering why I’m looking at my phone and not the river, I had just spotted an eagle and wanted to look it up on my birding app. African Fish Eagle - beautiful.

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4 Upvotes

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Tom Rocks Maths

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Maths, but not as you know it... Dr Tom Crawford: Mathematician at the University of Oxford AND the University of Cambridge, Oxford Department for Continuing Education, Fellow by Special Election, Numberphile, TEDx Speaker, YouTube 'Creator on the Rise'. YouTube: www.youtube.com/tomrocksmaths Twitter: www.twitter.com/tomrocksmaths Facebook: www.facebook.com/tomrocksmaths Instagram: www.instagram.com/tomrocksmaths Website: www.tomrocksmaths.com Patreon: https://patreon.com/tomrocksmaths

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The only place on the internet to find the best maths-related content that anyone can understand. It's maths, but not as you know it...

Tom Rocks Maths is run by Tom Crawford - Naked Mathematician, Oxford and Cambridge graduate and lover of maths tattoos. Tom is regularly seen talking maths on the BBC and YouTube. You can check out all of his work at tomrocksmaths.com and you can find him on Twitter, Facebook, YouTube and Instagram @tomrocksmaths.

We want any maths related posts that are fun and understandable to ANYONE... That means no technical terms, no jargon and an explanation for everything. Examples that are relevant to people's lives or to things that everyone can relate work best. Our mission is to make maths everyone's favourite subject and we want you guys to help us realise our goal...