Pinned post

You, a tech startup with millions in angel finance: made an app to turn handwritten maths into TeX.

Me, just the worst kind of smart alec: convinced a pen to turn TeX into handwritten maths

Hey, math nerds, I really want to know, why is Wikipedia saying that \(\wp(X)\) is a notation for the power set? First time I see the Weierstrass pe symbol used for something other than an elliptic curve, and I don't like it, my boy Weierstrass didn't write no power sets like that.

She's a 10, an instantiation of the abstract concept of 10, the succ of 9, the set {{{{{{{{{{}, {}}, {}}, {}}, {}}, {}}, {}}, {}}, {}}, {}}.

Graph Ends and Their Purpose in Geometric Group Theory - ThatPythonGuys

Unless you don't commute, in which case you get the Division Ring Medal

Show thread

You get a Fields Medal when you are able to rid yourself of all your zero divisors.

People who know linear algebra: if I said "make a block diagonal from these matrices", would you know what I meant?
How about "augmented matrix"?
And is there a term for when you put one matrix on top of another?

@christianp Hah, I love it! This reminds me of my favorite (bad) joke to tell to mathematicians. I have never failed to get an eye-roll. You go through the anecdote setup of Ramanujan and Hardy in the back of the taxi, but the cab number is 4. Hardy remarks it's a boring number, and Ramanujan says "no, it's the smallest number that can be written as the sum of two positive integers in two different ways."

I have made a new maths t-shirt design! If you can bear to pay Redbubble's prices, you can strut around town with a niche maths reference on your front:

Rediscovered this intriguingly spare OEIS entry:
You'll never guess what the 22nd term is!

I've had no takers, so here's a big hint:


Show thread

What's the next term in this sequence?

1, 2, 1, 3, 1, 4, 2, 5, 1, 6, 2, 3, 7, 8, 4, 3, 1, 9, 2, 10, 5

What's the pattern?

The best thing to do, when you realise you've got 3 minutes and 15 slides left in your talk, is to whizz through them all so quickly that nobody can read anything.

Uh huh.

Look at me, writing an important email competently and without gnashing my teeth for three days straight, like a person with any amount of executive function!

Using to decode a paper which assumes much more colour vision than I have.
Even though I made the app, I still don't believe those colours are different!

I played around with DALL•E Mini (now craiyon) - an AI image generator. I asked it to generate images of mathematics and mathematicians and some related topics and variants. Some results, some thoughts:

The thing about large language models like GPT-3 and Lambda describing the experience of being self-aware is they can also describe the experience of being a squirrel.

Neil Sloane, creater of the OEIS, has a blog!
He's started with a post about a really interesting integer sequence, and a call for help with it:

Show older

The social network of the future: No ads, no corporate surveillance, ethical design, and decentralization! Own your data with Mastodon!