From mathstodon.xyz
Terence Tao (@tao@mathstodon.xyz)
6 6
A little bit of math can go a long way. The design of a system can be hampered not only by having too little mathematical analysis go into it, but also too *much*. One familiar example of this is with password requirements in cybersecurity. Mathematically, the more complex that a password is...
17h ago
From mathstodon.xyz
Jonathan Oppenheim (@postquantum@mathstodon.xyz)
1 1
2 Posts, 16 Following, 3 Followers · Quantum mechanic with a lot of ontological baggage.
21h ago
From mathstodon.xyz
Uğur Y. Yavuz (@uyavuz@mathstodon.xyz)
1 1
Attached: 1 image I went on a late-night Wikipedia dive before going to bed last night and read about Chandler Davis. He was a professor of mathematics specializing in linear algebra and operator theory, who spent most of his career at the University of Toronto. While he was at UMich in the...
21h ago
From mathstodon.xyz
Brent Yorgey (@byorgey@mathstodon.xyz)
1 1
@OscarCunningham @jsiehler Right, \(L(x) = \frac{1}{1-x}\) is the exponential generating function for the species of lists, so it seems like this should be telling us that \(L \circ L \circ L \cong X\), i.e. lists of lists of lists are isomorphic to a single element? That seems obviously bogus,...
23h ago
From mathstodon.xyz
Terence Tao (@tao@mathstodon.xyz)
1 2
Many decisions in life involve the tradeoff between risk and reward. Perhaps one has to choose between a "low risk, low reward" course of action, that plays it safe, but does not achieve any big wins; or a "high risk, high reward" choice which could potentially give greater benefits, but also...
on Thu, 8AM
From mathstodon.xyz
The Animal and the Machine (@taatm@mathstodon.xyz)
1 1
@notsoloud@expressional.social Let’s say only one power source exists and it’s a car engine. That thing is heavy so it needs big wings to get it off the ground. As it’s a power to weight thing so that engine determines the minimum size of what can fly. That’s the envelope. With lithium-ion...
on Sep 5
From mathstodon.xyz
Σ(i³) = (Σi)² (@SvenGeier@mathstodon.xyz)
0 1
@cstross@wandering.shop Quote "clown shoes are preferable to jackboots" https://www.popehat.com/p/refuge-in-kakistocracy
on Thu, 11AM
From mathstodon.xyz
Rachel Wright (@virtuosew@mathstodon.xyz)
0 1
I think I saw someone on here remininscing about bags of leftover trim used in childhood crafting and lamenting they couldn't find anything similar. They aren't free, but Secret Projects UK do have boxes of buttons, offcuts and times for sale on their site.. #crafting #CraftSupplies #CraftingSupplies
on Wed, 11PM
From mathstodon.xyz
Albert Cardona (@albertcardona@mathstodon.xyz)
0 1
Also in 2009, a study showing how taste receptors are not just in the mouth but also in the gut, and what implication this has for sweeteners: "Taste Cells of the Gut and Gastrointestinal Chemosensation" Egan and Margolskee, 2009 https://pmc.ncbi.nlm.nih.gov/articles/PMC2680194/ "A number of...
on Wed, 1AM
From mathstodon.xyz
Dave (@reflectivemaths@mathstodon.xyz)
0 1
Hello everyone. Can anyone give me examples of when Stem and Leaf diagrams are used outside of maths classrooms/textbooks/exams? I don't know why they are included in so many maths courses!
on Tue, 10PM
From mathstodon.xyz
Microfractal (@Microfractal@mathstodon.xyz)
0 2
Attached: 1 image #TilingTuesday Classic Mandelbrot set, rendered with 36 samples for each pixel (I was lazy lol) Coordinates: x: -1.74998676650386209173601907848718493992001925959592978940508528255581256545919298080884 y:...
on Tue, 8PM
From mathstodon.xyz
Keenan Crane (@keenancrane@mathstodon.xyz)
0 1
@topher_batty@mastodon.acm.org I am trying to figure out how to broadcast to all platforms, now that the Tower of Babel is incomplete and the people have been scattered to various corners of the globe…
on Tue, 3PM
From mathstodon.xyz
Ionica Smeets (@ionica@mathstodon.xyz)
0 1
Two years ago I found a new social media home here on Mathstodon - and I love it here. So today I donated again to my server and thank @christianp and @ColinTheMathmo for all their work to keep this as *the good place*.
on Tue, 9AM
From mathstodon.xyz
John Carlos Baez (@johncarlosbaez@mathstodon.xyz)
0 1
Attached: 1 image Sometimes I think people go into astronomy just because it *sounds* so cool. When I hear "heavy metal subdwarf" I imagine Gimli's mini-me running around killing orcs with an axe while listening to songs by Slayer.
on Mon, 9PM
From mathstodon.xyz
jacob 🦀 (@jwestall_com@mathstodon.xyz)
0 1
Attached: 1 image "Obsolete" they said, "Unable to run the latest OS" they said
on Mon, 4PM
From mathstodon.xyz
0 1
A Mastodon instance for maths people. We have LaTeX rendering in the web interface!
on Mon, 4AM
From mathstodon.xyz
John Carlos Baez (@johncarlosbaez@mathstodon.xyz)
0 0
Attached: 1 image When I was a kid, under the influence of science fiction, I once dreamt I was going to the moon. It was so exciting! When I woke up I was crushed. Later, when I grew up, I realized sending humans into space is a waste of money at present - though it was good to prove we...
on Mon, 12AM
From mathstodon.xyz
n-gons (@ngons@mathstodon.xyz)
0 1
Attached: 1 image #tiling of #shapes made out of 5 or 8 equilateral #triangles #geometry #art #mathart #mathsart
on Sun, 10PM
From mathstodon.xyz
n-gons (@ngons@mathstodon.xyz)
0 1
Attached: 1 image Flowery tiling of kites of varying sizes. #tiling #mathart #mathsart #geometry #fractal
on Sun, 9PM
From mathstodon.xyz
John Carlos Baez (@johncarlosbaez@mathstodon.xyz)
0 1
Attached: 1 image Okay, I hung up the laundry. Imagine an enormous star flinging off its outer layers after it runs out of fuel and its core collapses under its own gravity. If it doesn't become a black hole, the core can shrink down to a ball of neutronium just 20 kilometers across. Just...
on Sun, 9PM
From mathstodon.xyz
n-gons (@ngons@mathstodon.xyz)
0 1
Attached: 1 image Irregular hexagons #Tiling #MathArt #MathsArt
on Sun, 8PM
From mathstodon.xyz
Andrew (@andrewt@mathstodon.xyz)
0 1
Welcome to new people joining from 𝕏! Remember, posts are called toots here, likes are called florps, retweeting is technically a cross-account posting exploit that they can't fix because we're using it, and our version of Grok is called Garfiald. There's no algorithm here! Literally none....
on Sun, 8PM
From mathstodon.xyz
Manlio De Domenico (@manlius@mathstodon.xyz)
0 1
Attached: 1 image The Issue #47 of #ComplexityThoughts is out! #Neuroscience dominates this issue, enjoy! https://manlius.substack.com/p/complexity-thoughts-issue-47
on Sun, 2PM
From mathstodon.xyz
Paolo Perrone (@paolop@mathstodon.xyz)
0 1
The smartest thing the EU can do now is release a ton of funding for scientists, and relative visas. And I mean immediately.
on Sun, 10AM
From mathstodon.xyz
n-gons (@ngons@mathstodon.xyz)
0 1
I just tried #whiskey to run a pc only steam game on my #mac. I’m impressed with how easy and great that worked out.
on Sun, 8AM
From mathstodon.xyz
David Meyer (@dmm@mathstodon.xyz)
0 1
Attached: 1 image Born #onthisday in 1934, Carl Sagan was an American astronomer and science communicator. Sagan is probably best known for his scientific contributions to the search for and possibility of extraterrestrial life, including experimental demonstration of the production of amino...
on Sat, 4PM
From mathstodon.xyz
Terence Tao (@tao@mathstodon.xyz)
0 1
For most of my professional career, I have tried to keep my personal life separate from my professional one. While I did occasionally post on non-mathematical topics, such as some notorious posts on politics, my social media has largely been restricted to purely mathematical ones (or reporting...
on Sat, 4PM
From mathstodon.xyz
Terence Tao (@tao@mathstodon.xyz)
0 1
I posted on my blog about the "elephant in the room": how to continue to teach and advocate for a topic as abstract and as seemingly disconnected from the real world as mathematics, in times of extreme change and uncertainty. https://terrytao.wordpress.com/2024/11/08/the-elephant-in-the-room/
on Fri, 6PM
From mathstodon.xyz
Gandhi (@kyscg@mathstodon.xyz)
0 0
211 Posts, 26 Following, 14 Followers · at play
on Nov 8
From mathstodon.xyz
Christian Lawson-Perfect (@christianp@mathstodon.xyz)
0 0
Another casualty of the SD card failure was the postgres database for my funkwhale server, which I used to listen to music. I'm not that bothered about it though, because I'd been thinking about changing it anyway - funkwhale is really slow and does much more than I need. I've spent an hour...
on Nov 7
From mathstodon.xyz
peterb (@peterb@mathstodon.xyz)
0 0
Attached: 1 image · Content warning: US politics
on Nov 6
From mathstodon.xyz
Interesting Esoterica (@esoterica@mathstodon.xyz)
0 0
Gaussian prime spirals Web page by Joseph O'Rourke In collection: Easily explained Imagine a particle in the complex plane, starting at \(c_0\), a Gaussian integer, moving initially \(\pm\) in the horizontal or vertical directions. When it hits a Gaussian prime, it turns left...
on Nov 5
From mathstodon.xyz
Interesting Esoterica (@esoterica@mathstodon.xyz)
0 0
World's shortest explanation of Gödel's theorem Article by Mark Dominus In collections: About proof, Attention-grabbing titles, Easily explained, Fun maths facts A while back I started writing up an article titled "World's shortest explanation of Gödel's theorem". But I didn't finish it, and...
on Nov 4
From mathstodon.xyz
Tom Lowe (@TomL@mathstodon.xyz)
0 0
Spatio-temporal self-symmetry has a wonderfully natural look to it. Here is a simple #FractalCanopy with sine waves in the lean and twist angles of the branches, with wavelength in proportion to branch length. This is a fairly accurate model of the behaviour of 3D self-similar trees with uniform...
on Nov 3
From mathstodon.xyz
Tim Hutton (@timhutton@mathstodon.xyz)
0 0
Attached: 1 image This shader shows the extent of your fovea on your visual field: https://www.shadertoy.com/view/4dsXzM "Look at any specific point and you should clearly see the extent of your fovea (the stars only seem to be rotating in a small circle at the center of your vision). Move...
on Nov 3
From mathstodon.xyz
10,000 lb weighted blanket (@violator@mathstodon.xyz)
0 0
which sucks more [ ] sql [ ] regex
on Nov 3
From mathstodon.xyz
daniel gratzer (@danielgratzer@mathstodon.xyz)
0 0
Had a fantastic few days visiting @jonmsterling and Marcelo Fiore as well as the whole crew at Cambridge these last few days!
on Nov 2
From mathstodon.xyz
Martin Escardo (@MartinEscardo@mathstodon.xyz)
0 0
I gave this link to a 4-page paper by Gian-Carlo Rota in a reply to another thread, but I would like to give it again here: https://www.ams.org/notices/199701/comm-rota.pdf The paper is called "Ten lessons I wish I had been taught". Perhaps it should have been called "Ten lessons I have...
on Nov 1
From mathstodon.xyz
∞ 𝕁uan ℂarlos (@jcponcemath@mathstodon.xyz)
0 0
Attached: 1 image Conformal mapping in @Demos https://www.desmos.com/calculator/k44eau3vuv https://complex-analysis.com/content/conformal_mapping.html
on Oct 31
From mathstodon.xyz
Fractal Kitty (@fractalkitty@mathstodon.xyz)
0 0
Attached: 1 image I love Pisano Periods so I played with a draft visualization I'd like to explore more in the future: https://codepen.io/fractalkitty/pen/abeYVGK #mathober #mathober2024 #pisano #fibonacci
on Oct 29
From mathstodon.xyz
Terence Tao (@tao@mathstodon.xyz)
0 0
I remember when this story of two high school students discovering one or more new proofs of the Pythagorean theorem came out some years ago, but (frustratingly) without any substantive details on what these proofs were and why they were new. Now there is a published paper:...
on Oct 29
From mathstodon.xyz
John Carlos Baez (@johncarlosbaez@mathstodon.xyz)
0 0
Attached: 1 image If you're a US citizen who is not voting because you don't support either candidate, please listen. This is a momentous election. One candidate will be an utter disaster if elected. We all have a duty to vote for the other one. Just look at Trump's rally in Manhattan...
on Oct 28
From mathstodon.xyz
Colin the Mathmo (@ColinTheMathmo@mathstodon.xyz)
0 1
Question for people ... I've had "Time Bandits" recommended to me, but I've watched a bit and am ... unengaged. So on a scale of -10 to 10 ... [ ] Brilliant, must watch : 10 [ ] It's OK if there's nothing else on : 3 [ ] I wouldn't bother : -3 [ ] Avoid at all costs : -10
on Oct 27
From mathstodon.xyz
Greg Egan (@gregeganSF@mathstodon.xyz)
0 0
First it was my neighbours’ airconditioner showing up in my WiFi lists, now it’s their “55-inch Samsung The Frame QLED 4K TV” showing up in my Bluetooth. No wonder would-be burglars drive around with Bluetooth scanners looking for things to steal.
on Oct 27
From mathstodon.xyz
Greg Egan (@gregeganSF@mathstodon.xyz)
0 0
“While most developers assume that transcription tools misspell words or make other errors, engineers and researchers said they had never seen another AI-powered transcription tool hallucinate as much as...
on Oct 27
From mathstodon.xyz
Francisco R. Villatoro (@eMuleNews@mathstodon.xyz)
0 0
Los artículos retirados en Springer Nature del caso Salamanca https://francis.naukas.com/2024/10/26/los-articulos-retirados-en-springer-nature-del-caso-salamanca/
on Oct 26
From mathstodon.xyz
The Animal and the Machine (@taatm@mathstodon.xyz)
0 0
We just need to listening to dictator Vladimir Putin. “Any peace agreement to end Russia's war with Ukraine must be in Moscow's favor, Russian President Vladimir Putin said in an interview with state media on Oct. 25” Said Putin, who raised the idea of peace. Concessions are death to Putin,...
on Oct 25
From mathstodon.xyz
Joaquín Sevilla (@Joaquin_Sevilla@mathstodon.xyz)
0 0
Attached: 1 image Ese no es el camino. Ya que incumplís la ley durante años, lo "convalidamos" Apaciguar a las clases medias y asumir que lo público queda como beneficencia. we´ve been Psoed
on Oct 24
From mathstodon.xyz
Martin Escardo (@MartinEscardo@mathstodon.xyz)
0 0
My 14-year old son started GCSE in the UK this year, and his school is using an awful system that seems to be specifically designed to make kids hate maths, called Sparx: https://sparxmaths.com/ He is in the top group of maths in his year, but the exercises are trivial, and he gets all of them...
on Oct 20