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As long as you have fun and you learn from it, nothing is wasted. Any time that you practise is not wasted. If you're going to be good at anything you have to practice. That's the price you have to pay. -- Bob Ross

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Write the digit 1 eight million, one hundred and seventy seven thousand, two hundred and seven times in a row.

That's a prime number.

Discovered by Ryan Propper and Serge Batalov a few days ago. oeis.org/A004023

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An overview of The Class Number Formula:

oxyde.ga/2021/04/30/Class-numb

Whether or not the ring of integers is a principal ideal domain depends on the value of a certain $$ζ$$ function.

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"I have given you everything you asked for," the king said. "Have you succeeded?"
The alchemist stared into his wine cup. "I have discovered that which can turn one thing into another."
"The philosopher's stone, which turns lead into gold?"
"Time, which turns words into regrets."
#MicroFiction #TootFic #SmallStories

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It's okay to be taught stuff in school that you'll never need again in your life. Because if you only know and do what you need, it's called survival, not life.

It took me quite a long time to realise of, yes, I never needed to learn about Greek mythology using poems written by people in the 18/19th century, but it's good to know.

There might be better things to learn, but there is basically nothing one should not learn. Knowledge is human kind's greatest treasure. Enjoy learning it.

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New blog post: Congratulations, Dr. Matias!
11011110.github.io/blog/2021/0
(One of our students who just passed his doctoral defense.)

Do you handle graph-based problems and are interested in a
new and innovative approach to solving such problems?

From Wednesday to Friday this week, the Kick-Off event of the junior research group GAIN- Graphs in Artificial Intelligence and Neural Networks will take place.

Talkers included: Matthias Gebhardt, Marián Boguñá, Michael Bronstein, Martin Braun, Alexander Scheidler and Daniel Martinez.

There's currently a Kick-Off event at one of the research groups at the University of Kassel

(Sadly I forgot to mention that earlier, since it already has started)

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I have written a program that turns strings of hex digits into lists of allowable 2-letter word prefixes such that the total frequency of all the words starting with the prefixes corresponding to each digit (0-f) are approximately the same.

The idea is to reversibly turn any hex string into prose or poetry. The decode process does a reverse mapping on the prefix of each word of 3 or more letters (other than "the", I might add "and" too). This lets you add filler words to make the output flow.

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"Our ship must seem primitive to you who have been spacefaring for millennia."
"Not at all," the Frinx ambassador said, "we find it very clever. Especially that reality evacuation facility. We have not seen anything like that before."
"Reality evac- Oh! You mean the library?"
#MicroFiction #TootFic #SmallStories

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New fav. Quote: "We build our computer systems the way we build our cities: over time, without a plan, on top of ruins." -- Ellen Ullman

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Remainder Wheels and Group Theory
Article by Brenton, Lawrence
In collections: Unusual arithmetic, Easily explained, The groups group
URL: maa.org/sites/default/files/pd

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Seeing someone reading a book I like, it's almost like the book is recommending the person.

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Good morning! My name is Colin and I’m a mathematician. What can I help you with this week?

(Here is a round-up of the kind of help I can offer: colinbeveridge.co.uk/how-can-i )

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I'm just surprised, as I'm pretty sure without recursive types or values it is impossible to define fix, but I didn't know recursive types could help.

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"A field large enough for your corgi to extend his hind legs in a full-body stretch – but only just large enough."

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You, a tech startup with millions in angel finance: made an app to turn handwritten maths into TeX.

Me, just the worst kind of smart alec: convinced a pen to turn TeX into handwritten maths

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mutual support idea

advanced googling of emotionally difficult topics as-a-trade-service because so many of us find it fun and easy to figure out paperwork bs when it's not our own paperwork (or locating doctors, or figuring out what funding programs exist), but scary impossible when it's our own - we could leverage this emotion vs. action disconnect as the super power that it is when it aligns well, instead of just the agony of mis-alignment.

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very few of my devices and projects are actually named... this feels like a major failure to anthropomorphise

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You, a coward: Python doesn't have a switch statement

Me, a modern-day Galileo:

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