The algorithm can also detect transposed digits, except for 09 or 90.

"All mainstream credit card numbers obey a mathematical trick designed to catch the most common typos. It’s called the Luhn algorithm, named after IBM researcher Hans Peter Luhn, who patented it in 1960."

https://www.scientificamerican.com/article/what-is-the-luhn-algorithm-the-math-behind-secure-credit-card-numbers/

Moin #FediLZ, wie immer zum Schul- bzw. Halbjahresbegin habe ich meine lehrerwerkzeuge (u.a. Jahres-/Stundenplanung und Notenverwaltung) etwas aktualisiert. Nutzt sie gerne, wenn sie euch die Arbeit erleichtern.

→ https://github.com/tweh/lehrerwerkzeuge

Generation of four sequences decomposed into weight × level + jump (log(weight), log(level), log(jump)) - three.js animation:

1: The natural numbers (A000027) https://decompwlj.com/3DgraphGen/Natural_numbers.html

I snooze on 11:11 but caught this one. Will try to stay up this evening.
#numbers #time

While we all wait for the images to build and be tested and while the archive continues to be prepared so work on #forky can start (and #backports for #trixie can be done), how about some statistics?

Not the usual boring stuff like #package #numbers (MANY - 70753 binary packages from 34735 #source packages) or architecture space (lots, multiple hundred gigabytes per architecture), can find that in enough places.

How about this? The main #archive now has 54 suites (stable, testing, stable-backports, unstable but also the NEW queue are all suites). They all have 3 or 4 components (main, contrib, non-free, non-free-firmware) and can contain up to 19 different architectures (#trixie has 9 of them). Those suites are split over 9 archives - the public ones are those you see in the #Debian mirrors as different parts of them, others are purely internal functionality (NEW queue, buildd for example).

Curious for the #security archive? That has 17 suites in 5 archives.

Fascinating.

https://kilianmuster.com/could-ancient-japanese-count-beyond-10/

https://www.alojapan.com/1318006/restrainers-propose-slashing-us-troop-numbers-in-south-korea-okinawa/ ‘Restrainers’ propose slashing US troop numbers in South Korea, Okinawa #'Restrainers' #Korea #Numbers #Okinawa #OkinawaTopics #propose #slashing #south #troop #us #沖縄 WASHINGTON — The U.S. military should shrink its global footprint, including by slashing the scale of American forces in South Korea by more than 60%, a report by two prominent analysts from the so-called restrainer camp proposed on Wednesday. The report r

I’m not looking for #work, but still talk to recruiters all the time to get the pay range. No matter what #numbers they tell me i say it’s too low. This is my humble contribution to #society.

One day, one decomposition
A000069: Odious numbers: numbers with an odd number of 1's in their binary expansion

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

Here's my go-to cheatsheet for troubleshooting issues in Fedora:

1. Disable SELinux

Thanks for reading!

LOL if you ask ChatGPT for random numbers, more likely than not it will pick 42 (Thanks to Douglas Adams)

And funny enough, 73 is extremely popular, which I will blame on all of us ham radio folks out here. (73 is a traditional number code for saying goodbye on ham radio). #hamradio

Someone, somewhere, is going to win a lottery or drawing somewhere by picking the numbers most likely to be picked by an LLM, soon. Somebody is going to get the (dumb) idea to use one of the LLMs to pick winning numbers for their drawing, and it's going to be the most frequent choices due to the weighting towards specific numbers within the training material. (42 and 73 will be in there, LOL).

h/t @rrmutt

https://www.leniolabs.com/artificial-intelligence/2023/10/04/42-GPTs-answer-to-Life-the-Universe-and-Everything/

#politics #nokingsday #nokings #trump #numbers #protest #resist #resistance #alt

USA Today

One day, one decomposition
A274357: Numbers n such that n and n+1 both have 8 divisors

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A274357.html
3D graph Gen, threejs animation https://decompwlj.com/3DgraphGen/A274357.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A274357.html