Andrew @andrewt@mathstodon.xyz
Manchester MathsJam regular and occasional tamed programmer for the Nerds
This predates my Mastodon accounts but it ought to be on here so here it is: my interactive blog about the domino computer.
oh no #τ
Really I should read some of these, but π!
RT @TomChivers@twitter.com:
So, wait. If Germany score, then the top three teams would be on six points, with Germany ahead of Sweden on head-to-head results. But Sweden are ahead of Mexico on head-to-head. And Mexico would be ahead of Germany on head-to-head. Non-transitive paradox football.
Oh that’s very pleasing
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New puzzle cube design up on thingiverse! printed on the @josefprusa MK3!
https://twitter.com/wildrosebuilds/status/1010704469812625408
I love fractals so much and these are great
(CW: flashing lights and colours on some of these animations)
Matt Parker has just launched https://psychic-pets.com and is looking for pets who might have powers.
Every time the World Cup rolls round there's a news story about some animal or other who's managed to predict every match so far. If Matt can get enough pets signed up, all making different predictions, maybe one of them will be proven right?
Sign up your pet! It'll be fun, helpful and *maybe* silly.
It's a bit new so if it breaks then tell bugs@psychic-pets.com
This predates my Mastodon accounts but it ought to be on here so here it is: my interactive blog about the domino computer.
“Markets are efficient if and only if P = NP”
https://arxiv.org/abs/1002.2284
(submitted by perculis)
Included on the CD of Bullfrog's 1996 real-time tactical game "Syndicate Wars" was a 259kb file MISC/PRIME1.TXT which contained the largest prime number (then known) #DOSGaming
I have discovered the greatest LaTeX symbol set! 🎃
…which is to say that we put three random cards down and constructed a Set Magic Square around them, then we added another card at random to define a Set Magic Cube, and then it seemed silly *not* to turn it into a tesseract.
Obviously there's an easier way of doing it but this was far more satisfying.
We built the Setteract.
Push-pull LEGO logic gates
In collections: Basically computer science, Unusual computers
URL: https://www.randomwraith.com/logic.html
Entry: http://read.somethingorotherwhatever.com/entry/item4
Slap the forehead moment of the day ...
Write c=cos(t), s=sin(t), then \( (c+si)^2 \) instantly gives the double angle formulas. Generalise for angle sum and difference.
Starting the day feeling stupid.
Noëlle the 8-Bit🏳️🌈🎄
A math puzzle:
Imagine an NxN checkerboard, with a certain number of its squares "infected". On each turn, a square becomes infected if at least two of its orthogonal neighbors - left, right, up, down, but not diagonal - are infected. Squares can't become uninfected once they're infected.
Show that at least N squares must start out infected in order to infect the whole checkerboard.
Some proper mansplaining happening in the Birdsite replies Show more
I just spent quite a happy hour or so working out how these tricks work, and if anything I'm more impressed now than I was before.
https://www.youtube.com/watch?v=Z4JEuC01T_k
