In the last Finite Group livestream, Katie told us about emirps. If a number p is prime, and reversing its digits is also prime, the reversal is an emirp (‘prime’ backwards, geddit?). For example, 13, 3541 and 9999713 are prime. Reversing their digits we get the primes 31, 1453 and 3179999, so these are all…

# Mathematical Drawing Hacks

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…

# 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…

# \(-e^{i\pi}\) 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…

# 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…

# 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…