TJ Hitchman @profnoodlearms.bsky.social · 23/09/2026I'd check to see if I am doing it wrong, but my teenager would laugh at me making faces 010
Reposted by TJ HitchmanSteven Clontz @clontz.org · 03/09/2026Of course I couldn't resist. RREF-le #1 🟩⬜🟨🟨⬜ 🟨🟨🟩🟨⬜ 🟨🟨🟨🟩⬜ matrix.clontz.org/rreflematrix.clontz.orgRREF-le! @ Matrix.Clontz.org 112
Reposted by TJ HitchmanTien Chih @tienchihmath.bsky.social · 01/03/2026It's finally here! "Linear Optimization: A Geometric Inquiry Course" gives an inquiry based course in linear optimization supplemented by technology for intuition building. A great class for interests in either pure or applied math! Physical Copies now on sale: www.619wreath.com/store/p53/Li...619wreath.comLinear Optimization: A Geometric Inquiry Course"Linear Optimization: A Geometric Inquiry Course" is an inquiry based learning text for an undergraduate course in linear optimization. Taking a geometric vantage point to build intuition, students wo... 22612
TJ Hitchman @profnoodlearms.bsky.social · 05/12/2025uh. soooo I had meant this to be a _reply_ to something @sbagley.bsky.social reshared about Euclid having a relationship with a triangle. 150
TJ Hitchman @profnoodlearms.bsky.social · 05/12/2025whoa. the prequel to Flatland is even wilder than I expected 180
TJ Hitchman @profnoodlearms.bsky.social · 01/08/2025I got one of these as a present at a conference once: a 3d-printed trefoil with no tri-tangent plane. I did not know that until I took it off the supports and set it on my desk. I *also* learned that my desk is not quite level it is sturdy and survived hitting the floor 030
TJ Hitchman @profnoodlearms.bsky.social · 14/07/2025We just got a reminder that we are not to download or use unapproved software, explicitly including AI tools! I imagine this is more from viewpoint the university's legal exposure on data security. They made a special point that accessing the chatgpt website from a university machine was forbidden 040
TJ Hitchman @profnoodlearms.bsky.social · 13/06/2025ooh neat. Is that a cuckoo? I haven't seen one with my own eyes ever 110
TJ Hitchman @profnoodlearms.bsky.social · 23/05/2025oh my God. I have fallen in such a rabbit hole. Spieker and Nagel and Gergonne, oh my 030
TJ Hitchman @profnoodlearms.bsky.social · 05/05/2025*Robin (comic book voice)* Dedekind's Biscuits, Batman! 130
TJ Hitchman @profnoodlearms.bsky.social · 30/04/2025I really want this exam to involve group work 140
TJ Hitchman @profnoodlearms.bsky.social · 30/04/2025honestly, share your unease and the narrative tension with them! It will help motivate why people are still making up new math words 0100
TJ Hitchman @profnoodlearms.bsky.social · 25/04/2025oh no. I only sent you *some* of the extras. I wanted to be properly prepared, so I really overdid it. There were so many I could have wallpapered my office and the classroom. 030
TJ Hitchman @profnoodlearms.bsky.social · 28/03/2025I notice they waited until just *after* their annual big "giving blueday" alumni fundraiser event 040
TJ Hitchman @profnoodlearms.bsky.social · 25/03/2025you know, self-reported data is worth the paper you write it on. just fill out some random numbers. include "I spent 35 hours compiling and entering data for this form" 030
TJ Hitchman @profnoodlearms.bsky.social · 21/03/2025those elite universities function more as gateways to *power and influence*, at least on the national level that's the target. farther away from the centers of national power, we have some state governments doing their own local versions (waves from flyover country) 020
TJ Hitchman @profnoodlearms.bsky.social · 08/03/2025circumscribed circles and traditional angles in circles theorems have entered the chat. (also, I definitely do call them circular functions and have heard others do so) 010
TJ Hitchman @profnoodlearms.bsky.social · 08/01/2025well, did you do the chalk drawings outside the house before it got dark? gonna be hard to do NOW 100
TJ Hitchman @profnoodlearms.bsky.social · 28/12/2024I got a good chuckle out of that one. Jean asked "what's so funny?" and I cannot explain properly 050
Reposted by TJ HitchmanSteve Trettel @stevejtrettel.bsky.social · 06/12/2024 I have a second piece display at O'Hanlon Center for the Arts in Mill Valley CA this month, entitled "Julia". Here it is, and a short math-explainer of what we're looking at 2287
Reposted by TJ HitchmanMatt Macauley @visualalgebra.bsky.social · 23/11/2024I used to post long #VisualAlgebra threads on #MathTwitter before realizing that I was actually in #TheBadPlace. I'm going to make my debut #MathSky thread today, with visuals that I've never publicly shared. (Can you guess the topic?) I'm excited to show you, and I hope you enjoy! 1/19 🧵👇media.tenor.coma woman is sitting on a couch in front of a wall that says `` welcome ! everything is fine . ''Alt: "Everything is Fine" opening scene from NBC's "The Good Place", with Kristen Bell. 17714
TJ Hitchman @profnoodlearms.bsky.social · 19/11/2024That is the most Spencer thing you have ever spencered 150
TJ Hitchman @profnoodlearms.bsky.social · 18/11/2024i am shocked to be personally attacked in this way 010
TJ Hitchman @profnoodlearms.bsky.social · 30/10/2024A phi male is... uh you know what never mind this joke 330
Reposted by TJ HitchmanBrian P Katz (BK) @thewordninjabk.bsky.social · 29/10/2024If you’re new to #MathSky, consider following @readprimus.bsky.social for updates about tertiary mathematics teaching and learning! primusmath.com/blog/primusmath.comBlogFeatured Post Curated Collection: Assessment Continue reading Follow the blog. Also consider following us onTwitter: @ReadPRIMUSFacebook: PRIMUSmath 0135
Reposted by TJ HitchmanÁlvaro Lozano-Robledo @mathandcobb.bsky.social · 28/10/2024This is the article I was interviewed for! Their new wonderful proof(s) of Pythagoras are now published in the Monthly. www.sciencenews.org/article/teen...sciencenews.orgTwo teenagers have once again proved an ancient math ruleNe’Kiya Jackson and Calcea Johnson have published 10 trigonometric proofs of the Pythagorean theorem, a feat thought impossible for 2,000 years. 24817
Reposted by TJ HitchmanJacob T. Levy @jacobtlevy.bsky.social · 25/10/2024Andy Craig @andycraig.bsky.social at @liberalcurrents.com www.liberalcurrents.com/liberals-mus...liberalcurrents.comLiberals Must Wage War on Rent-SeekingRent-seeking classes form a core backbone of the Republican Party 1217
Reposted by TJ HitchmanSteve Waycott Wildlife Photography 🍁 @stevewaycott.bsky.social · 23/10/2024We are at the tail end of the autumn splendor, but there's still enough colour in the leaves to make a nice backdrop for a Great Blue Heron. Oromocto, #NewBrunswick, Canada October 2024 📸 #birds #GBHE #nature #wildlife #photography #naturephotography #wildlifephotography #Nikon #Z9 #Nikkor800pf 815231
TJ Hitchman @profnoodlearms.bsky.social · 20/09/2024sometimes the universe speaks to you directly 040
TJ Hitchman @profnoodlearms.bsky.social · 16/09/2024Oh! and ALSO another benefit. Students will feel slightly confused about the second statement, since "those angles don't appear" when they draw a generic rhombus. If they try to put those angles in visually, they draw diagonals, and hence are closer to a proof of part 1 100
TJ Hitchman @profnoodlearms.bsky.social · 16/09/2024Oh! Wait, I get it now. Conjecture 4 is what I usually think of as Conjecture 1 because the JIBLM style means I had to renumber everything in one sequence. So YES Yes it is as written for the reasons above 200
TJ Hitchman @profnoodlearms.bsky.social · 16/09/2024this was so amazing and increased student feelings of ownership of the math and the classroom and their ability to participate productively by asking questions and it hit so many of my meta-goals right off the bat that I decided to keep it forever like you see it now 100
TJ Hitchman @profnoodlearms.bsky.social · 16/09/2024and we used their thoughts to make new conjectures that had their names on them. (eg1 If a rhombus has these angles congruent, then it is a square. eg2 If you have a compass and straightedge you can construct a rhombus which isn't a square. and lots of other variants depending on the semester) SO 100
TJ Hitchman @profnoodlearms.bsky.social · 16/09/2024but being in a hurry I wrote it on the board the way it now appears on the page. And I just faked it in class and WOW was the discussion rich and amazing. students got the point right off that not all conjectures are true, and 100
TJ Hitchman @profnoodlearms.bsky.social · 16/09/2024so, the first time I used this exact thing was probably my third time through the class while still writing/designing notes. And in that case I meant to have two pairs of opposite angles so there would be a quick bit of discussion about notational choices and mirroring arguments... BUT 100
![Abstract
We provide a clearer presentation of the Chair44 monotile, a new strongly aperiodic
monotile in three-dimensional Euclidean space E3
.
With LLM tools (ChatGPT Astra), Ioannis Tsiokos recently reported the first
known strongly aperiodic monotile in three-dimensional Euclidean space E
3
, the Chair44
monotile (see Figure 3, taken from Tsiokos’ preprint [11]). Hats off to Tsiokos for this
discovery, the framework he developed, and the human inquiry that led to the Chair44
monotile.
However, the paper itself and the formalization that it claims for support are not
in a form that is readily usable to anyone who wants to understand or check it. This is
not just because of the needless length or complexity of the argument (which is indeed
overwhelming as presented), or because the formal repository is not in normal form, or
because much of the text is misleading or poorly organized, but mainly because there
is so much irrelevant puff to push through. These are hallmarks of an LLM-driven
research paper.
We must, absolutely, insist on a higher standard for scientific discourse. The aim
must be to communicate, clearly, with people in the community — certainly this is an
historical requirement for publication.1](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:ysaiuavm2f7d4th42c4valhw/bafkreiaosjugf6tpo6hjqor3cxkfxhrhmmtv6qkvup2luprwbry2oia2pi)
