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Obscure-ish topic, but does anybody here have any textbook / expository paper recommendations for contact geometry?

It's been a while now since my degree, but I've had to help out a sibling with some thermodynamics homework, and it's sparked my interest in the geometric side of physics again.

beta board arriving tomorrow! (According to DHL. So it might be another two weeks)

@j ... course, that would require ANOTHER protocol soooo never mind.

Hot take: X11's separation of the window manager and the display server is really good and Wayland is taking a step backward by combining the two.

If KWin crashes or I need to restart it, I shouldn't lose EVERYTHING.

And yes, this does happen.

@EdgarMartinezMoro Hey, welcome to Mathstodon. What's your favourite finite simple group?

@florian You dragged it so that you wouldn't have to interact with each other as human beings, that's all.

I am an artist. I am flexible.

I have had a small length of CAT-5 cable in my coat pocket for at least the last two years. It has followed me across the Atlantic and back. I don’t think I’ve ever used it, and can’t for the life of me remember why I put it there.

Oh, crap. Just learned that Peter Neumann died of covid this morning.

I invite you to speculate in the comments on what they might have been told in the associated class, but the poll concerns a first year secondary school question (in Italy) which asks:

"True or false, the successor to pi is pi+1".

Please boost to get beyond my bubble - thx.

Phew! It is done! I've signed a contract! I'm writing a book!

I'll be streaming the writing for as long as it seems good and interesting to do so. I'll be starting in January.

New Year's resolution: write a book.

Tentative table of contents:

Chapter 1 – How to Prove It
Chapter 2 – Logic and Set Theory
Chapter 3 – Real Numbers
Chapter 4 – Complex Numbers
Chapter 5 – Polynomials
Chapter 6 – Matrix Algebra
Chapter 7 – Derivatives
Chapter 8 – Iterated Function Systems
Chapter 9 – Analytic Functions
Chapter 10 – Möbius Transforms
Chapter 11 – Basic Number Theory
Chapter 12 – Groups
Chapter 13 – Elliptic Curves
Appendix A – Table of Notation

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Looking forward to it! Let me know if you run into any LaTeX issues/turing-tarpit-hellscapes, I spend a good chunk of my undergrad debugging other people's TeX, so I'm happy to lend a hand.

Any areas of maths in particular?

if you don't like someone, or an instance, block it. mute it. move on.

not everything needs a tumblr-esque cancellation campaign waged against it. not everything you take issue with needs some kind of social justice validation behind it.

not everything requires your input. or a response. escalation and counter-escalation are a thing and the fact so few people on this platform recognize that is very worrying.

@PINE64 I'm looking forward to ordering the as soon as its available. Has there been any discussion of a programmable multimeter/oscilloscope being made based on a similar hardware (RISC-V) platform? (it seems to me that anyone who'd buy the pinecil, would also be interested in it)

If you do go down that route: IMO, PineProbe would be a great name.

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