Published on: 2025-06-03 17:17:09
WhatsApp is gearing up to launch a long-awaited feature: usernames. With usernames, users will be able to connect with others without sharing their actual phone number. Spotted by WABetaInfo (via Tecnoblog) in a recent TestFlight beta version of the app, this under-development feature will finally allow users to pick a unique handle. Yes, just like on Telegram, Signal, and most other modern messaging platforms. While the feature isn’t live yet, even for beta testers, WABetaInfo found strings t
Keywords: number username usernames users whatsapp
Find related items on AmazonPublished on: 2025-06-03 16:57:12
When I wrote about the length of file names in early Unix, I noted that inode numbers were unsigned 16-bit integers and thus you could only have at most 65,536 inodes in any given filesystem. Over on the Fediverse, JdeBP correctly noted that I had an off by one error. The original Unix directory entry format used a zero inode number to mark deleted entries, which meant that you couldn't actually use inode zero for anything (not even the root directory of the filesystem, which needed a non-zero i
Keywords: file inode number numbers zero
Find related items on AmazonPublished on: 2025-06-05 01:55:37
Almost 20 years ago, I wrote a textbook in real analysis called “Analysis I“. It was intended to complement the many good available analysis textbooks out there by focusing more on foundational issues, such as the construction of the natural numbers, integers, rational numbers, and reals, as well as providing enough set theory and logic to allow students to develop proofs at high levels of rigor. While some proof assistants such as Coq or Agda were well established when the book was written, fo
Keywords: exercises lean mathlib natural numbers
Find related items on AmazonPublished on: 2025-06-05 04:00:50
A shard of smooth bone etched with irregular marks dating back 20,000 years puzzled archaeologists until they noticed something unique – the etchings, lines like tally marks, may have represented prime numbers. Similarly, a clay tablet from 1800 B.C.E. inscribed with Babylonian numbers describes a number system built on prime numbers. As the Ishango bone, the Plimpton 322 tablet and other artifacts throughout history display, prime numbers have fascinated and captivated people throughout histor
Keywords: mersenne number numbers prime primes
Find related items on AmazonPublished on: 2025-06-10 17:07:01
is a news editor covering technology, gaming, and more. He joined The Verge in 2019 after nearly two years at Techmeme. Apple is going to change how it names its next set of major operating systems, Bloomberg reports. Instead of just notching up the version number, Apple will instead mark them by year. However, the numbers will apparently align with the year after the one the update is actually released in, similar to cars. That means that the next big iOS update will be iOS 26 instead of iOS
Keywords: 26 apple instead ios numbers
Find related items on AmazonPublished on: 2025-06-09 22:54:40
Right-Truncatable Prime Counter This C program efficiently calculates the number of right-truncatable primes for a given number of digits. It uses a custom hash table for fast primality lookups and the primesieve library for high-performance prime generation. A right-truncatable prime is a prime number that, when its rightmost digit is successively removed, results in a sequence of primes. For example, 739 is a right-truncatable prime because: 739 is prime. Removing the rightmost '9' gives 7
Keywords: digit number prime primes right
Find related items on AmazonPublished on: 2025-06-13 21:00:00
The reason why we did this is, we asked ourselves, what would happen if these small operations could combine their knowledge of their market, of their neighborhood, with the state-of-the-art technology? That's how we came up with a consumer app called Earnify. It is kind of the Uber of loyalty programs. We did not name it BPme. We did not name it BP Rewards or ampm or Thorntons. We created one standardized loyalty program that would work in the entire country to get more loyal consumers and driv
Keywords: did number store technology ve
Find related items on AmazonPublished on: 2025-06-16 16:34:38
This post is also available as a podcast. Listen here, download for later, or subscribe wherever you consume podcasts. Earlier this month, I received a phone call from a user of Three Rings, the volunteer/rota management software system I founded. We don’t strictly offer telephone-based tech support – our distributed team of volunteers doesn’t keep any particular “core hours” so we can’t say who’s available at any given time – but instead we answer email/Web based queries pretty promptly at an
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Find related items on AmazonPublished on: 2025-06-13 08:34:15
Text Buffer Reimplementation March 23, 2018 by Peng Lyu, @njukidreborn The Visual Studio Code 1.21 release includes a brand new text buffer implementation which is much more performant, both in terms of speed and memory usage. In this blog post, I'd like to tell the story of how we selected and designed the data structures and algorithms that led to those improvements. Performance discussions about JavaScript programs usually involve a discussion about how much should be implemented in native
Keywords: buffer line node number text
Find related items on AmazonPublished on: 2025-06-17 04:59:18
Has your competition in Fortnite ever felt a bit… off? If so, Epic's minimum real player counts may be to blame. A leaker with a proven track record claims (via Polygon) that the game's OG version can sometimes be populated with over 90 percent bots. The leaker AllyJax used a Discord bot called The Dub to find the number. (Among its other features, the tool lets you count the number of real players in a lobby.) "The minimum real player count has been reduced from 25 to as low as 8 in Fortnite O
Keywords: allyjax bots epic fortnite number
Find related items on AmazonPublished on: 2025-06-20 16:04:14
A few years ago, I wrote about how 'sort -V' can sort IPv4 addresses into their natural order for you. Even back then I was smart enough to put in that 'IPv4' qualification and note that this didn't work with IPv6 addresses, and said that I didn't know of any way to handle IPv6 addresses with existing command line tools. As far as I know, that remains the case today, although you can probably build a Perl, Python, or other language program that does such sorting for you if you need to do this re
Keywords: addresses ipv6 need numbers sort
Find related items on AmazonPublished on: 2025-06-23 12:33:06
Coinbase, a cryptocurrency exchange with over 100 million customers, revealed that a recent data breach in which cybercriminals stole customer and corporate data affected 69,461 individuals. In data breach notifications filed with the Office of Maine's Attorney General, Coinbase said, "a small number of individuals, performing services for Coinbase at our overseas retail support locations, improperly accessed customer information." While the exposed data did not include the impacted people's p
Keywords: account coinbase data information number
Find related items on AmazonPublished on: 2025-06-25 03:10:30
Quick intro LeetArxiv is Leetcode for implementing Arxiv and other research papers. This is Chapter 1 in our upcoming book, What Every Programmer Needs to Know about Enumerative Combinatorics. Past Chapters (Early access for paying subscribers) Chapter 1 (we are here) : Introduction to Integer Partitions and Integer Compositions. Chapter 2 : The Factorial Number System as an Alternative to Base-2 Binary Computer Architectures. Chapter 3 : The Combinatorial Number System as another Alternat
Keywords: column compositions integer number quad
Find related items on AmazonPublished on: 2025-06-28 16:41:00
If your phone number was one of the 89 million exposed in the recent data breach that affected Steam, the company says your info is safe. In a statement shared with CNET, Steam has denied that a reported data breach endangered its users' personal information. "Old text messages cannot be used to breach the security of your Steam account," the statement said. "Whenever a code is used to change your Steam email or password using SMS, you will receive a confirmation via email and/or Steam secure m
Keywords: account number password phone steam
Find related items on AmazonPublished on: 2025-06-28 00:37:55
This post is a more carefully thought out and peer reviewed version of a floating-point comparison article I wrote many years ago. This one gives solid advice and some surprising observations about the tricky subject of comparing floating-point numbers. A compilable source file with license is available. We’ve finally reached the point in this series that I’ve been waiting for. In this post I am going to share the most crucial piece of floating-point math knowledge that I have. Here it is: [Fl
Keywords: double float numbers pi sin
Find related items on AmazonPublished on: 2025-07-04 21:15:00
What just happened? It's another bad day to be a tech worker. Microsoft has announced that it is laying off 6,000 employees, around three percent of its entire workforce, globally. It brings the total number of tech industry layoffs in 2025 to almost 60,000 – and there's still more than half the year left. Microsoft said that is slashing three percent of its workforce across all levels, teams and geographies. The company employed around 228,000 workers as of the end of June, meaning about 6,000
Keywords: 000 company layoffs microsoft number
Find related items on AmazonPublished on: 2025-07-12 18:56:12
When I recently looked at the state of the art in floating point random number generation, I was surprised to see a common procedure in many programming languages and libraries that is not really a floating-point algorithm: Generate a random integer with bits chosen based on the precision of the format. Convert to floating point. Divide to produce an output between 0 and 1. In code, this looks like: 1 func ( r * Rand ) Float64 () float64 { 2 int64 rand_int = r . Int63n ( 1 << 53 ) 3 return fl
Keywords: floating number numbers point random
Find related items on AmazonPublished on: 2025-07-20 11:33:28
Apple has long wrapped up its spring releases, including the new iPhone 16e, M4 MacBook Air, M3 iPad Air, and A16 iPad. Many may think that there isn’t anything left in the hardware pipeline until the iPhone 17 lineup launches in the fall. However, there is one small yet important product coming sooner than that: AirTag 2. Why AirTag 2 Despite the fact that it sounds like an uninteresting refresh, AirTag 2 will actually pack a number of relatively important upgrades for the everyday user. A n
Keywords: airtag apple like new number
Find related items on AmazonPublished on: 2025-07-22 08:52:50
The Gist Editors' notes Mathematician solves algebra's oldest problem using intriguing new number sequences by University of New South Wales Norman Wildberger at his laptop. Credit: UNSW Sydney × close Norman Wildberger at his laptop. Credit: UNSW Sydney A UNSW Sydney mathematician has discovered a new method to tackle algebra's oldest challenge—solving higher polynomial equations. Polynomials are equations involving a variable raised to powers, such as the degree two polynomial: 1 + 4x – 3
Keywords: method new numbers says wildberger
Find related items on AmazonPublished on: 2025-07-22 11:58:10
Go to the main page of Wikipedia. Click any link that leads to a Wikipedia entry. For that page, click the first hyperlinked word in the main text. Keep doing it - Your journey will look something like this. Now, try this for several pages. Make them as varied as Nuclear Gandhi, Cow Tipping, and Exploding Trousers. All of them will lead you to the Wikipedia entry on Philosophy. In 2017, three mathematicians from the University of Vermont published a paper titled Connecting Every Bit of Knowl
Keywords: ideas life number people time
Find related items on AmazonPublished on: 2025-07-28 17:18:31
For years I’ve wanted to build a super-dense electronic-music compressor: keep only the loops and phase cues that really matter, then re-synthesise the track perfectly. Evenings and weekends, however, were never long enough to design the model, write the maths, and wrangle PyTorch. Recently I opened ChatGPT running the new o3 model and treated it as a design partner. If we could keep the conversation focused, perhaps we could sketch—and prototype—the entire idea in a single stretch. Co-designin
Keywords: grid numbers o3 occurrences patterns
Find related items on AmazonPublished on: 2025-08-01 01:55:54
It’s safe to say people are loving Clair Obscur: Expedition 33 so far. The turn-based RPG — which is the debut game from French developer Sandfall — has been racking up rave reviews in the days around its release, and already soared past some big sales milestones. On Sunday morning, publisher Kepler Interactive shared on social media that the game has sold a million copies since its release on April 24. It hit the first 500,000 in one day. On the game’s BlueSky account, the team said that the la
Keywords: 33 expedition game number rpg
Find related items on AmazonPublished on: 2025-08-06 17:46:00
TL;DR: California is on pace to run out of license plate character combinations by the end of the year. Since 1980, the state has used a sequence consisting of one number, followed by three letters, followed by three more numbers. Fortunately, the state already has a solution and it's relatively simple: they're just going to reverse the current order. The current sequence for non-commercial vehicles started with 1AAA000 and will end with 9ZZZ999. Try as I might, I was unable to determine exactl
Keywords: california character license number plate
Find related items on AmazonPublished on: 2025-08-07 03:33:39
Microsoft has fixed several known issues that caused Blue Screen of Death (BSOD) and installation issues on Windows Server 2025 systems with a high core count. As Redmond said when it acknowledged this known issue in October, impacted devices may experience a wide range of symptoms, including Windows Server 2025 installation or upgrading processes failing or hanging, and server start-up taking as much as three hours or more in some cases. Affected systems might also get blue screen errors when
Keywords: issues logical number server windows
Find related items on AmazonPublished on: 2025-08-09 09:24:53
Surprises in Logic John Baez April 4, 2016 There's a complexity barrier built into the very laws of logic: roughly speaking, while lots of things are more complex than this, we can't prove any specific thing is more complex than this. And this barrier is surprisingly low! Just how low? Read this. And then see what happens when combine this idea with the famous 'surprise examination paradox', also known as the 'unexpected hanging paradox'. Mathematically speaking, these ideas are called Chai
Keywords: natural numbers program standard theorem
Find related items on AmazonPublished on: 2025-08-09 21:08:20
Edgar Cervantes / Android Authority TL;DR The latest Gboard beta includes references to features such as “flick keys to enter symbols,” which could mimic the iPad’s quick symbol access method. The “Password number row” feature could allow for dynamically displaying the number key, restricting it to only during password entry to preserve space on compact devices. Google could also be upgrading the upcoming Writing Tools feature to let users generate text within the keyboard app itself. Google
Keywords: android gboard keys number users
Find related items on AmazonPublished on: 2025-08-10 07:40:14
Defense Secretary Pete Hegseth and Signal are back in the news. The New York Times reported Sunday that Hegseth created a Signal messaging chat that included his wife and brother. The details of the newly revealed Signal chat are supposedly similar to details shared in another Signal chat that included a journalist from the Atlantic in March. According to reporting at the time, top White House officials used the end-to-end encrypted messaging app to discuss military strikes in Yemen before thos
Keywords: app messages number signal tap
Find related items on AmazonPublished on: 2025-08-10 20:25:19
If you ask a person on the street whether 1 is a prime number, they’ll probably pause, try to remember what they were taught, and say “no” (or “yes” or “I don’t remember”). Or maybe they’ll cross the street in a hurry. On the other hand, if you ask a mathematician, there’s a good chance they’ll say “That’s an excellent question” or “It’s kind of an interesting story…” Some people treat the non-primeness of 1 as a mathematical fact and nothing more, but those people are missing out on something
Keywords: domain number numbers prime primes
Find related items on AmazonPublished on: 2025-08-11 22:08:42
Well… you probably shouldn’t. This is my one rule: if my son ever says he doesn’t want to do math, we simply stop. No arguing, no bribing, no pushing. We do something else instead. Why? Because math is not a chore—it’s a way of experiencing the world. Just like tasting new food, enjoying music, or feeling amazed by nature, math should always feel like play, never like work. Kids are born explorers. They naturally want to discover new things, including math. My main goal is simply to keep that
Keywords: games just like math numbers
Find related items on AmazonPublished on: 2025-08-14 12:18:12
I'll start by presenting things in illustrated form: ; ls -l testfile -rw-r--r-- 1 cks 262144 Apr 13 22:03 testfile ; ls -s testfile 1 testfile ; ls -slh testfile 512 -rw-r--r-- 1 cks 256K Apr 13 22:03 testfile The two well known sizes that Unix files have are the logical 'size' in bytes and what stat.h describes as "the number of blocks allocated for this object", often converted to some number of bytes (as ls is doing here in the last command). A file's size in bytes is roughly speaking the
Keywords: blocks file filesystem number testfile
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