Benjamin Hackl
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behackl.dev
Benjamin Hackl
@behackl.dev
Postdoc for math and software at @uni-graz.at, Austria. I like counting things. And computers.

Maintainer of Python animation thingy, manim.community
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Hallo zusammen! 👋🦋

Ich bin Mathematiker an der @universityofgraz.bsky.social; mich interessieren Fragen vom Typ "Wie viele Möglichkeiten gibt es, ..." – und Computermathematik.

Als side hustle maintaine ich das Animationstool manim.community & bin dabei manchmal via twitch.tv/behackl zu sehen. :-)
Reposted by Benjamin Hackl
Our GitHub org is back, and so are our repos! \o/
Manim Community
Manim Community has 17 repositories available. Follow their code on GitHub.
github.com
January 10, 2026 at 11:55 PM
Slowly getting worried our ticket might have gotten drowned over Christmas + New Year's... still hoping for the best that our stuff can be recovered. 🤞🍀
It's been about 2 weeks since our GitHub organization has been deleted, we're still working on resolving this and are waiting for our friends from @github.com to get back to us.

In the meantime, find a mirror of some of our main repos over at codeberg.org/ManimCommunity!
ManimCommunity
Mirror organisation of our GitHub organisation, https://github.com/ManimCommunity/
codeberg.org
January 7, 2026 at 5:32 PM
It's pretty hard to follow up to cool number years like (20 + 25)² = 2025, but I hope you have a great start to 2¹¹ - 2·11 = 505 + 506 + 507 + 508 = 2026. Happy new year! 🥂🍾🎉

(Bonus fun fact: 2026 is the number of disconnected 4-regular graphs on 17 vertices, via oeis.org/A033483 🧐)

#mathsky 🧮
January 1, 2026 at 12:07 AM
Reposted by Benjamin Hackl
There now is a more comprehensive update about our situation with the deleted assets over on Reddit at www.reddit.com/r/manim/s/DY..., and we've setup a mirror of our main repo at codeberg.org/ManimCommuni...
From the manim community on Reddit
Explore this post and more from the manim community
www.reddit.com
December 28, 2025 at 3:25 PM
merry crisis
We are aware of an ongoing situation concerning our GitHub organization and Discord server (both of which have been deleted) and are working on resolving this as soon as possible.

In the meantime we have setup discord.gg/fGG4TFSdKh as a new home on Discord for our community, come join us there!
Join the Manim Discord Server!
Check out the Manim community on Discord – hang out with 95 other members and enjoy free voice and text chat.
discord.gg
December 26, 2025 at 8:23 AM
Reposted by Benjamin Hackl
Come join us in July 2026 for the 14th European Conference on Mathematical & Theoretical Biology in Graz, Austria!

Registration opens now: ecmtb2026.org

#ECMTB’26
@smbmathbiology.bsky.social
European Conference on Mathematical & Theoretical Biology 2026
ECMTB is coming to Graz, Austria in July 2026. Registration and Call for Contributions are open!
ecmtb2026.org
November 11, 2025 at 6:47 PM
und sonst, die nächste primzahl für die 10 ein generator der zugehörigen multiplikativen gruppe ist, wäre ja 17 -- und so viele ziffern summieren macht live vielleicht wenig spaß, und/oder zeigt der taschenrechner ja vielleicht nicht. 😄 (2/2)
October 30, 2025 at 10:01 PM
@astrodicticum.bsky.social coole show heute! 👏
aber: was passiert, wenn beim "zukunft voraussagen" zufällig eine zahl ohne rest durch 7 teilbar vorkommt? nochmal dividieren lassen, dann wäre zumindest nur 49 ein problem... (1/2)
October 30, 2025 at 10:01 PM
I feel f(x) would be pretty straight with you, while g(x) has its ups and downs. 🧐

(I'll show myself out.)
August 26, 2025 at 8:29 AM
99 🎈 ~ live from schlossberg, graz 🎶
August 16, 2025 at 7:36 PM
Reposted by Benjamin Hackl
📢 WE HAVE A NEW NAME

We are excited to share that VSC has undergone a slight rebranding and will now operate under a new name: 𝗔𝘂𝘀𝘁𝗿𝗶𝗮𝗻 𝗦𝗰𝗶𝗲𝗻𝘁𝗶𝗳𝗶𝗰 𝗖𝗼𝗺𝗽𝘂𝘁𝗶𝗻𝗴 (𝗔𝗦𝗖).

The name was chosen to reflect the nationwide scope of the consortium - read the official
statement here ➡️ asc.ac.at/news/2025/ne...
July 9, 2025 at 1:35 PM
Reposted by Benjamin Hackl
Der ehemalige Mathe-Lehrer und ÖVP Wossenschaftssprecher, der gsunde Watsch supi findet und den Klimawandel leugnet, hat jetzt also eine Meinung zu FWF Projekten.

Was für ein Wiaschtl.

www.derstandard.at/story/300000...
ÖVP-Abgeordneter Taschner attackiert Uni und Wissenschaftsfonds: "Verbranntes Geld"
In einer Rede schmähte der ÖVP-Wissenschaftssprecher ein Forschungsprojekt. Der Uni-Rektor ist über Taschner empört und ortet "billige Vorurteile". Auch der FWF weist die Vorwürfe zurück
www.derstandard.at
July 9, 2025 at 10:56 AM
konkret der junior-regionalwettbewerb für schüler:innen aus dem burgenland/NÖ/wien (www.math.aau.at/OeMO/Termine...).
Österreichische Mathematik-Olympiade
www.math.aau.at
June 12, 2025 at 11:17 AM
unfassbar, furchtbar. kraft und mitgefühl allen angehörigen. 🖤
Es werden 10 Todesopfer - darunter auch der Täter - sowie mehrere Schwerverletzte bestätigt. #graz1006
June 10, 2025 at 11:45 AM
spent my day playing around with parallelizing an exhaustive search over a large space from a combinatorial problem in rust. 🦀

pretty solid experience, very fun! stuff that took ~3h before is now down to like 10mins. ⏱️👀
June 6, 2025 at 2:48 PM
who knew that there are two ways to make a fraction larger! 🪄✨
May 20, 2025 at 1:16 AM
weil zuerst unterwegs und danach superstressig bin ich noch nicht zum alljährlichen matura-live-rechnen gekommen -- wird jetzt aber gleich nachgeholt; live auf twitch.tv/behackl in ca. 5 minuten, video dann hoffentlich ab morgen auf youtube!
Twitch
Twitch is the world
twitch.tv
May 18, 2025 at 6:42 PM
Reposted by Benjamin Hackl
Was für ein Erfolg!
Was für eine Stimme!
Was für eine Show!

Lieber JJ, herzliche Gratulation zum fulminanten 1. Platz beim Eurovision Song Contest. #ESC25

Ganz Österreich freut sich! (vdb)
May 17, 2025 at 11:04 PM
ich bin leider gerade in kanada und weit weg von meinem setup. :-/

ich würde schon gern wieder einen stream machen, das wird realistischerweise aber nicht vor montag/dienstag nächster woche sein; werd auch hier posten wenn ich mehr weiß. sorry!

alles gute, falls du antrittst! 🙂‍↕️
May 7, 2025 at 10:46 AM
fresh out of the oven, software-fun with generating functions! 🧑‍💻🚀
Benjamin Hackl, Andrew Luo, Stephen Melczer, \'Eric Schost: A SageMath Package for Analytic Combinatorics in Several Variables: Beyond the Smooth Case https://arxiv.org/abs/2504.09790 https://arxiv.org/pdf/2504.09790 https://arxiv.org/html/2504.09790
April 15, 2025 at 6:25 AM
Reposted by Benjamin Hackl
And one of these DN is ALMOA! Excited to be the coordinator of it. Looking forward to collaborating with a great consortium and training the next generation of Mathematical Optimizers! @uniklagenfurt.bsky.social #optimization #mathematics #MSCA
🔁EuropeanResearchExecutiveAgency

The #MSCA 2024 Doctoral Networks call results are published!

The @ec.europa.eu will train over 1800 doctoral researchers through 149 doctoral programmes.

These networks will strengthen the candidates' skills and employability in the long term.
🔗 europa.eu/!NNq63m
MSCA awards €608.6 million for doctoral programmes
The European Commission will support 149 doctoral programmes to train and develop the skills of over 1800 doctoral candidates.
europa.eu
April 3, 2025 at 7:30 PM
from the makers of evergreens like "your parcel has been deposited at a self-service station" and "nobody was at home when we tried to deliver your parcel" comes a new instant classic: "upon your request, the parcel is being held for collection." ⛽🔥🥲
March 31, 2025 at 4:54 PM
for some definition of "think", surely 🤭
March 28, 2025 at 9:02 AM
Reposted by Benjamin Hackl
heute auch im programm beim MINT-kongress: ein besonders wichtiger (und launiger) vortrag "wie reden wir über wissenschaft?" von @florianaigner.at :-)
February 26, 2025 at 12:46 PM