At this year’s MathsJam UK Gathering, I had the pleasure of running one of the Saturday Night Tables – a chance to invite attendees at the Gathering to drop by and play with something. Together with fellow Manchester MathsJam regular Andrew Taylor, I ran a table of **Mathematical Drawing Hacks** – ways to make drawing complex mathematical objects and shapes easier.

## You're reading: Posts By Katie Steckles

### 21X competition – results

A while ago we announced a competition to win a copy of algebraic blackjack game 21X, which was recently successful on Kickstarter, smashing its funding target by an order of magnitude. If you’d like to pre-order a copy of the game, you can sign up to be notified when that’s possible.

We had over 30 entries in the competition, of which 20 achieved correct answers, and have picked a random set of winners to pass on to Naylor Games, who should be in touch with them by email in the next few days.

For anyone interested in seeing the answers, here’s what they were. As a reminder, the challenge here is to find a value for \(x\), given that \(n\) represents the number of cards, to get the total of all the card values closest to 21.

### \(-e^{i\pi}\) to Watch: Keenan Crane

*In this series of posts, we’ll be featuring mathematical video and streaming channels from all over the internet, by speaking to the creators of the channel and asking them about what they do.*

We spoke to Keenan Crane, a professor in Computer Science & Robotics at Carnegie Mellon University, who runs his own YouTube channel which has over 17,000 subscribers.

### Aperiodical News Roundup – October 2023

*Here’s a round-up of a few things that happened this month that we didn’t otherwise cover here.*

The Salem Prize for 2023, given annually to young mathematicians judged to have done outstanding work on harmonic analysis and related topics, has been awarded to Sarah Peluse and Julian Sahasrabudhe. *(via Terence Tao)*

According to this recent arXiv paper, data from 350,757 coin flips supports Persi Diaconis’ model of coin tossing, which estimates the probability of a coin landing on the same side it started at a surprising 51%. (via Alex Corner, Sheffield Hallam University)

Statistician C. R. Rao, who pioneered powerful statistical methods that underpin modern scientific data analyses, has died. *(via Raul Jimenez)*

And finally, the newly* discovered aperiodic monotile, which we won’t stop going on about ever, has been chosen as one of Time’s 200 Best Inventions of 2023 (via the European Mathematical Society).

### Carnival of Mathematics 221

The next issue of the Carnival of Mathematics, rounding up blog posts from the month of October 2023, is now online at Beauty of Mathematics.

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.

### \(-e^{i\pi}\) to Watch: Kat Does Maths

*In this series of posts, we’ll be featuring mathematical video and streaming channels from all over the internet, by speaking to the creators of the channel and asking them about what they do.*

We spoke to Kat Phillips, who’s been running regular mathematical livestreams on Twitch through her channel KatDoesMaths since 2020, and has over 3,000 followers.

### Finite Group: first free live stream

As we wrote about recently, we (Katie and Peter, along with our friends Sophie Maclean and Matthew Scroggs) are involved in an exciting new initiative – an online maths community that gets together via online chat and monthly video events. The first event happened yesterday evening, and will be available to watch for free on YouTube for the next couple of months.

This is a taster – if you’d like to join the online community and attend next month’s event, you need to join the Finite Group (starting from £4/month).