Earlier this week I posted a matrix multiplication worksheet on Mastodon. If you do some of these, you might spot what’s funny about them. For example. \[ \Large \begin{bmatrix}\color{navy}{4} & \color{navy}{8}\\\color{navy}{2} & \color{navy}{3}\end{bmatrix} \begin{bmatrix}\color{cyan}{8} & \color{cyan}{8}\\\color{cyan}{2} & \color{cyan}{7}\end{bmatrix} = \begin{bmatrix}\color{navy}{4}\color{cyan}{8} & \color{navy}{8}\color{cyan}{8}\\\color{navy}{2}\color{cyan}{2} & \color{navy}{3}\color{cyan}{7}\end{bmatrix} \] That is, the answer to each question can be made…

# Aperiodical News Roundup – June/July 2024

Here’s a round-up of some news we didn’t cover on the Aperiodical in the last couple of months.

# Carnival of Maths 230

The next issue of the Carnival of Mathematics, rounding up blog posts from the month of July 2024, is now online at Theorem of the Day. 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.

# Row \( \sqrt{-1} \) of Pascal’s triangle

Hi! My name is Colin, and I am a PROPER mathematician now. I’ve made a contribution to the Online Encyclopaedia of Integer Sequences.

# The Big Internet Math-Off 2024, the final!

Here’s the final match of The Big Internet Math-Off. Over the past month, we’ve heard from 16 interesting mathematicians and whittled them down to just 2. Today, we’re pitting Matt Enlow against Angela Tabiri to determine The World’s Most Interesting Mathematician (2024, of the people who I asked to take part and were available). Take…

# Carnival of Maths 229

The next issue of the Carnival of Mathematics, rounding up blog posts from the month of June 2024, is now online at Cavmaths. 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.

# The Big Internet Math-Off 2024, Semi-final 2

Here’s the second semi-final match of The Big Internet Math-Off. Today, we’re pitting Angela Tabiri against Ayliean. Take a look at both pitches, vote for the bit of maths that made you do the loudest “Aha!”, and if you know any more cool facts about either of the topics presented here, please write a comment…