One day, one decomposition
A230633: Numbers n such that m + (sum of digits in base-4 representation of m) = n has exactly one solution

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A230633.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A230633.html

A new Ph.D thesis prize is being established in honor of Zoé Chatzidakis, by Fondation Sciences Mathématiques de Paris.

This yearly award for an outstanding thesis in model theory will honor her scientific legacy and her commitment to the younger generation.

https://www.helloasso.com/associations/fondation-sciences-mathematiques-de-paris/formulaires/7

Je partage ce texte [1] d'Eva Philippe [2], sur la place de la recherche en mathématiques, sur le militantisme, sur la dissonance cognitive, sur la recherche de sens à nos vies, sur l'enseignement (des mathématiques), sur plein d'autres choses aussi.

J'ai trouvé ça beau, honnête, humble, puissant.

[1] https://mycore.core-cloud.net/index.php/s/T9aFoz056jzKcoJ#pdfviewer
[2] https://perso.imj-prg.fr/eva-philippe/

Just for fun, I wrote a Python program to start with a random decimal digit, and keep adding the decimal digit until it reaches a prime number.

I'm excited to share it's found a 10997-digit long prime number, which is my new personal best largest prime! It's larger than the 37th factorial prime (3507!-1) which is 10912 digits.

I'll leave the program running overnight to see if it can find longer ones!

Perspective changes everything...

"The chemist smiles at the childish efforts of alchemists, but the mathematician finds the geometry of the Greeks and the arithmetic of the Hindoos as useful and admirable as any research of today." – Florian Cajori (1859-1930)
#quote #mathematics #math #maths

Simulating Some Queues https://lobste.rs/s/c92tqx #math
https://concerningquality.com/queue-simulations/

Jeff Smith's Math Puzzle for April 11, 2025 - A stop sign so big even California drivers can see it. https://alamedapost.com/features/puzzles/math-puzzle-for-april-11-2025/

#Math #50

Trump’s tariffs explainer from @standupmaths #uspol #tariffs #math #maths #mathematics

https://www.youtube.com/watch?v=j04IAbWCszg

Decomposing factorial of 300K as the product of 300K factors larger than 100K

http://gus-massa.blogspot.com/2025/04/decomposing-factorial-of-300k-as.html

Discussions: https://discu.eu/q/http://gus-massa.blogspot.com/2025/04/decomposing-factorial-of-300k-as.html

Readings shared April 10, 2025. https://jaalonso.github.io/vestigium/posts/2025/04/10-readings_shared_04-10-25 #AI #ATP #CommonLisp #FunctionalProgramming #Haskell #ITP #IsabelleHOL #LLMs #LeanProver #Math #Programming #Reasoning

11 avril 1953 : #CeJourLà naissance de Andrew Wiles, mathématicien britannique spécialisé en théorie des nombres, connu pour sa preuve partielle de la conjecture de Shimura-Taniyama-Weil, ayant notamment pour conséquence le grand théorème de Fermat.
https://fr.wikipedia.org/wiki/Andrew_Wiles
#mathématiques #maths #math

One day, one decomposition
A230577: Positive integers that have exactly 6 odd divisors

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A230577.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A230577.html

I always took my math/science notes in sketch books. I guess it's not surprising that a lot of the pages ended up like this.

#mastoart
#science
#math

Synthesis

Hear me out. Mathematicians should adopt Futhark (https://en.wikipedia.org/wiki/Runes#Futhark)

Mathematicians want new symbols like magpies want shiny things. Runes have the advantages that

1. There are not too many of them at around 24 depending on flavour.

2. Many of them correspond to a latin character in a relatively straightforward way, allowing for an additional "sort" of variables per context.

3. They can be drawn with straight lines in a way that is clear at a range of font sizes and are forgiving to those with poor handwriting (I'm looking at you, ξ)

4. They come from a dead language, so who's going to complain other than old norse specialists.

This handles many of the disadvantages of say:
Chinese characters (too many, and I know over 2000)
Hangul / Kana / etc. (multiple sensible choices for a given consonant)
Hebrew / other abjads (none that correspond to vowels)

Some problems:
1. Basically none of you know them. Consult your local tiktok fortune teller for a brief intro

2. The standard futhark order does not really correspond to latin/greek order

Edit: 3. Poor font support for Runes. They are at least assigned standard unicode codepoints in the Runic block, so this could be mitigated over time. In tex there is the "allrunes" package at least, although I have never tried it.

(This isn't a shitpost, I've brought this up at least four times this week already at MGS)

Math-y people of fedi, how do I get more math into my life, as a person who dropped out of a PhD about 15 years ago and now works a software job she doesn't much care for? #math #maths #mathematics

Hi!
Your hourly hectoc is here:

819722

The goal is to combine the 6 numbers to a total of 100. You can use the mathematical operations + - * / ^ and the parenthesis ( ). Numbers can be combined, but you have to use all 6 of them and are not allowed to change the order. See https://hectoc.seism0saurus.de for an example. Please use CW "solution".

Have fun! Your hourly hectoc bot
by @seism0saurus