iiinova — where your digital self keeps evolving

Reposted by Steven Clontz

Dave Kung @dtkung.bsky.social · 30/09/2026

Help, #MathSky community: Trying to get a handle on how different techniques of integration are covered at different types of institutions. Take 2 minutes (I swear) and fill out this quick survey: forms.gle/hk9nfSwwme82...

$Different techniques of integration, including integration by parts, trig substitution, trig integrals, and partial fractions.$

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Reposted by Steven Clontz

Jeremy Kun @jeremykun.com · 29/09/2026

3rd circuit rules AI training on copyrighted material is NOT fair use. Wow! chatgptiseatingtheworld.substack.com/p/breaking-n...

chatgptiseatingtheworld.substack.com

BREAKING News: Third Circuit affirms summary judgment rejection of fair use defense by ROSS Intelligence in AI training

Opinion under seal for now.

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Steven Clontz @clontz.org · 29/09/2026

I need to be more familiar with Quarto. Are you saying you can't write just $x^2$?

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Steven Clontz @clontz.org · 28/09/2026

Guess who gets to schedule extra office hours on Thursday because students want to stay far away from campus Friday to avoid the Trump rally?

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Steven Clontz @clontz.org · 26/09/2026

If you haven't played with pretext.plus in a while, we just spruced up the editor. It's looking pretty good even on mobile!

Screenshot of my intro to Topology book on pretext plus taken on an Android device. Design elements akin to Google Docs in the menu bar and VS Code for a sidebar hopefully provide an improved user experience.

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Reposted by Steven Clontz

Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 24/09/2026

It's come along enough to share... An Algebra Game (the start thereof, at least), like the Natural Number Game! adam.math.hhu.de#/g/CRGibbons... Play it, critique it, join the development team (which is... just me)! It's meant to go along with a "rings first" semester of abstract algebra

adam.math.hhu.de

Lean Game Server

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Steven Clontz @clontz.org · 23/09/2026

No! Because this context is for intro number theory, I'm not using the Lurch AlgebraRule. Earlier, the rule x+0=0 was established.

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Steven Clontz @clontz.org · 23/09/2026

My wife suggested I commute my sharp objections for more productive feedback.

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Steven Clontz @clontz.org · 23/09/2026

Damn, my kid is old enough to be doing math that I have opinions about (teacher says multiplication is groups×members and not members×groups and also rows are groups but columns are not) 🤬

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Reposted by Steven Clontz

Charles Pulliam-Moore @charlespulliam.bsky.social · 22/09/2026

The Emma Frost x Miss Piggy comic has hit the internet and it's so, so, so much more magnificent than I ever could have hoped for

Emma Frost: "Emma Frost, darling. I'm a telepath. May I read your mind to ascertain if you're telling the truth?"

Miss Piggy: "But of course, darling I am an open book, a tell-all memoir."

Emma Frost telepathically witnessing the entirety of Miss Piggy's life.

Wolverine: "Frost? She legit?"
Emma Frost: "She's..She's... She's everything. And I would die for her."

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Reposted by Steven Clontz

Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 20/09/2026

#MathSky #MTBoS FYI: I am working on my _Abstract Algebra, Actively!_ manuscript and testing out the final rearrangement of material with my current students this semester. I thought I'd share the course (as I short-hand it for the semester) as a prelude to the book: pub.pretext.plus/o/1e65c5f6-2...

pub.pretext.plus

Modern Algebra

MATH 325 Semester 2026

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Reposted by Steven Clontz

In Medias Malone @professormusgrave.bsky.social · 20/09/2026

This was the original Tilly Norwood

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Steven Clontz @clontz.org · 19/09/2026

It's a glorious three hour tribute to America and the Center and its rich history as our nation's finest cultural center! "You've got a minute and a half!" 😱

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Steven Clontz @clontz.org · 19/09/2026

david I tried really hard to pick a cute harmless robot

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Steven Clontz @clontz.org · 18/09/2026

Trouble is, everyone wants to build the Terminator, and no one wants to build WALL-E.

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Steven Clontz @clontz.org · 16/09/2026

Convinced a disappointing (positive) number of students in my linear algebra class today that 5=7 😭

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Reposted by Steven Clontz

Joshua Bowman @thalesdisciple.bsky.social · 16/09/2026

Who wants to join a writing group with me so I can get my math papers finished? My available times are Sunday 5:30-6:30 a.m., Monday-Thursday on lunch break unless I have grading or a faculty meeting, and Friday from 1:30 to oh shoot I have to pick up my kid o’clock.

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Steven Clontz @clontz.org · 15/09/2026

RREF-le #13 🟩🟨8️⃣🟨9️⃣ 🟨🟩9️⃣🟨9️⃣ 🟨🟨🟨🟩8️⃣ 6 / 2 / 3 matrix.clontz.org/rrefle

matrix.clontz.org

RREF-le! @ Matrix.Clontz.org

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Steven Clontz @clontz.org · 15/09/2026

I can think of no curse stronger than the disappointment of Mr Rogers or Ms Rachel.

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Reposted by Steven Clontz

Tien Chih @tienchihmath.bsky.social · 14/09/2026

RREF-le #12 🟩🟨🟨2️⃣9️⃣ 🟨🟩🟨8️⃣4️⃣ 🟨🟨🟩7️⃣3️⃣ 8 / 1 / 2 matrix.clontz.org/rrefle

matrix.clontz.org

RREF-le! @ Matrix.Clontz.org

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Steven Clontz @clontz.org · 14/09/2026

RREF-le #12 🟩🟨🟨2️⃣9️⃣ 🟨🟩🟨8️⃣4️⃣ 🟨🟨🟩7️⃣3️⃣ 12 / 1 / 1 matrix.clontz.org/rrefle

matrix.clontz.org

RREF-le! @ Matrix.Clontz.org

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Steven Clontz @clontz.org · 13/09/2026

RREF-le #11 🟩🟨2️⃣🟨7️⃣ 🟨🟩2️⃣🟨1️⃣ 🟨🟨🟨🟩8️⃣ 14 / 1 / 1 matrix.clontz.org/rrefle

matrix.clontz.org

RREF-le! @ Matrix.Clontz.org

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Steven Clontz @clontz.org · 12/09/2026

RREF-le #10 🟩4️⃣6️⃣🟨🟨 🟨🟨🟨🟩🟨 🟨🟨🟨🟨🟩 13 / 1 / 1 matrix.clontz.org/rrefle

matrix.clontz.org

RREF-le! @ Matrix.Clontz.org

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Steven Clontz @clontz.org · 12/09/2026

this multiple choice test is "a low-pressure way to think deeply, take risks, and see math as creative and worth exploring beyond class" friend this is a Wendy's

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Steven Clontz @clontz.org · 12/09/2026

I have no mouth so I must Jax

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Steven Clontz @clontz.org · 12/09/2026

I'm cool with those (obviously lol) My beef with mcqs is when they are used as "math outreach" in a competition setting

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Steven Clontz @clontz.org · 12/09/2026

Yep it's "subposting about how multiple choice tests are terrible for exciting anyone about math who wasn't already excited" season.

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Steven Clontz @clontz.org · 11/09/2026

I see a croissant and a doughnut, what's the problem?

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Reposted by Steven Clontz

using manespace stud; @glimmerstomp.bsky.social · 11/09/2026

Oh, linear algebra, why are you so important and yet also so boring

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Steven Clontz @clontz.org · 11/09/2026

RREF-le #9 🟩🟨7️⃣4️⃣🟨 🟨🟩6️⃣4️⃣🟨 🟨🟨🟨🟨🟩 13 / 1 / 1 matrix.clontz.org/rrefle

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Steven Clontz @clontz.org · 10/09/2026

The issue of attribution is not just about ego: the beans that our stakeholders count (e.g. citations, "impact factor") for job performance in research completely depend on it. Now these are awful metrics in 2026 for many reasons. But we take care not to dismiss attribution concerns as merely ego.

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Steven Clontz @clontz.org · 10/09/2026

Always warms the cockles of my heart to see a PreTeXt screenshot in the wild.

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Steven Clontz @clontz.org · 10/09/2026

Probably need to tweak the algorithm haha

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Steven Clontz @clontz.org · 10/09/2026

Pretty confident this is optimal lol RREF-le #8 🟩🟨4️⃣🟨2️⃣ 🟨🟩4️⃣🟨1️⃣ 🟨🟨🟨🟩6️⃣ 5 / 0 / 0 matrix.clontz.org/rrefle

matrix.clontz.org

RREF-le! @ Matrix.Clontz.org

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Steven Clontz @clontz.org · 10/09/2026

It's fun to dunk on them (while I still use them for documents that don't need to be accessible and have bespoke formatting requirements), but I think their terms of service are okay right now with regards to this: www.overleaf.com/legal Will they honor it? Will they change it for a buyer?

overleaf.com

Privacy and Terms

An online LaTeX editor that’s easy to use. No installation, real-time collaboration, version control, hundreds of LaTeX templates, and more.

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Steven Clontz @clontz.org · 10/09/2026

Come for the accessibility support, stay for the ethical stewardship of your intellectual property.

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Reposted by Steven Clontz

Tien Chih @tienchihmath.bsky.social · 09/09/2026

Drop by our weekly @mathtech.org office hours, 12-1 ThF hosted by @chrissysafranski.bsky.social @clontz.org @oscarlevin.com and myself to talk #PreTeXtGang! mathtech.org/events/. We will not steal your in progress results, we promise. We may steal your hubcaps.

mathtech.org

Events

Showcasing open-source technologies that innovate mathematics education and communication.

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