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Recently I was taught the following two expressions formula, 

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@jsiehler I'm playing your with so exciting! homepages.gac.edu/~jsiehler/ga (If I understand mechanism that one piece moving one time anyway is counted as 1-move, I may be able to reduce MOVES more!)

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Now, I am interested in the following three. 

:chalkdust_scorpion: A fan of Tetris? This blog by Trupti from our archives introduces you to polyominoes! chalkdustmagazine.com/blog/pol

@no_TL And I found the image's duality. I'm very surprised because I didn't know this !

@no_TL In September, I was studying the "inverse geometry" en.wikipedia.org/wiki/Inversiv of Japanese mathematics "Wasan" en.wikipedia.org/wiki/Japanese. I thought the following image was the simplest and most beautiful result

We've just released #Halcyon 2.4.4 with the following changes:
- Added a option to rewrite all #Birdsite links to a #Nitter instance which can be set by the instance admin
- Click on animated GIFs is now handled in the same way as normal images
- Enabling full height for images does now also work for animated GIFs
You can download it from notabug.org/halcyon-suite/halc but please don't forget to add the new option in your config.ini

@bremner One other thing -- in addition to .tex files we also support using .md (markdown) files with embedded latex. This can be useful for (collaborative) notes, since it's more friendly than full latex.

@bremner Thanks for you trying cocalc.com! Feel free to click Help button in cocalc in the upper right for any questions about course plans versus subscriptions or anything else, or if you just want to video chat with us.

I founded CoCalc to create a company that would be ideally aligned with heavily supporting open source math-related software development, and that is our ultimate goal.

Thanks to @dansup I can use #Fedilab with #Pixelfed 👍
Now it's time to work on improvements with the app and contribute as much as possible to Pixelfed.

Social news room

Interested in following a curated list of posts about #federatedweb projects on #Matrixor #Freenode? We've been collecting feeds of various projects in our social news room. Feel free to check it out and suggest new feeds!
The room can be found as follows:
* #feneas-social:feneas.org (Matrix)
* #feneas-social(Freenode)
#fediverse#decentralization friendica.feneas.org/display/7

“Why did the #MATH book look so sad?”

“Because it had so many problems.”

Doing some artistic thinking because I've got to fill a lot of picture frames in the department in a hurry.
Ignoring the colours, which ones do you like the most?
No image descriptions because these are all pretty abstract!
(1/2)

塩ラが #fedibird の大好き機能を説明するよ!

★お気に入りハッシュタグへのリンクを、@シングルカラムで右サイドバーにピン止めしておけるよ!
fedibird.com/@info/10265843614

☆ハッシュタグを、アカウントみたいにフォローできて、好きなハッシュタグがついたトゥをHTLに流すことができるよ!
fedibird.com/@info/10270557439

★「フォローしよっかなー、どうすべか」という相手の公開だけヲチできるよ!
fedibird.com/@info/10272351598

Escher-like spiral tilings, by Craig Kaplan: isohedral.ca/escher-like-spira

(Sadly with no angels, devils, fish, or geese, but maybe some talented artist will take up that challenge.)

Via news.ycombinator.com/item?id=2

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Mathstodon

A Mastodon instance for maths people. The kind of people who make \(\pi z^2 \times a\) jokes. Use \( and \) for inline LaTeX, and \[ and \] for display mode.