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Automating Distro Updates in CI

news.ycombinator.com Neyts Zupan 2025-09-22 19:20:24

For a long time, we had a recurring TODO in our calendar: once a month, check whether any Linux distro we test against got a new stable version—or dropped support for an old one. Sounds simple. In reality, it was annoying, error-prone, and we were always late. Someone had to remember, look up release notes, update our CI matrix, and push a commit. Sometimes we missed a release for weeks, even months. Sometimes we forgot to remove an EOL version. It was busywork, not engineering. So we automate

Topics: action automation ci matrix step

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Adjacency Matrix and std:mdspan, C++23

news.ycombinator.com Unknown 2025-09-24 18:14:20

In graph theory, an adjacency matrix is a square matrix used to represent a finite (and usually dense) graph. The elements of the matrix indicate whether pairs of vertices are adjacent or not, and in weighted graphs, they store the edge weights. In many beginner-level tutorials, adjacency matrices are implemented using vector of vectors (nested dynamic arrays), but this approach has inefficiencies due to multiple memory allocations. C++23 introduces std::mdspan , which provides a more efficient

Topics: graph matrix numvertices size_t std

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Analog optical computer for AI inference and combinatorial optimization

news.ycombinator.com Kalinin 2025-10-03 06:06:14

Experimental set-up The key components of our experimental set-up are shown in Fig. 1a and Extended Data Fig. 1. Optical subsystem The optical subsystem performs matrix–vector multiplication. The basic components are the optical sources (input vector), a system of fan-out optics to project the light onto the modulator matrix and a system of fan-in optics to project the light onto a photodetector array (output vector). The corresponding schematic is shown in Extended Data Fig. 2. The incohere

Topics: 16 aoc instances matrix variables

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The maths you need to start understanding LLMs

news.ycombinator.com Unknown 2025-10-02 18:10:47

The maths you need to start understanding LLMs Actually coming up with ideas like GPT-based LLMs and doing serious AI research requires serious maths. But the good news is that if you just want to understand how they work, while it does require some maths, if you studied it at high-school at any time since the 1960s, you did all of the groundwork then: vectors, matrices, and so on. One thing to note -- what I'm covering here is what you need to know to understand inference -- that is, using an

Topics: dimensional matrix points space vector

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The Little Book of Linear Algebra

news.ycombinator.com Unknown 2025-10-14 16:17:07

The Little Book of Linear Algebra A concise, beginner-friendly introduction to the core ideas of linear algebra. Formats Chapter 1. Vectors 1.1 Scalars and Vectors A scalar is a single numerical quantity, most often taken from the real numbers, denoted by $\mathbb{R}$ . Scalars are the fundamental building blocks of arithmetic: they can be added, subtracted, multiplied, and, except in the case of zero, divided. In linear algebra, scalars play the role of coefficients, scaling factors, and e

Topics: begin bmatrix mathbb mathbf matrix

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Show HN: I built a toy TPU that can do inference and training on the XOR problem

news.ycombinator.com Unknown 2025-11-08 17:52:14

Nobody really understands how TPUs work…and neither do we! So we wanted to make this because we wanted to take a shot and try to guess how it works–from the perspective of complete novices! We wanted to do something very challenging to prove to ourselves that we can do anything we put our mind to. The reasoning for why we chose to build a TPU specifically is fairly simple: None of us have real professional experience in hardware design, which, in a way, made the TPU even more appealing since w

Topics: bmatrix frac mathbf partial phantom

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Nothing Phone 3 Review: A Rule-Breaking Phone for Rebels

gizmodo.com Raymond Wong 2025-11-28 22:59:10

A month removed from the flustered echo chamber of gearheads, self-proclaimed tastemakers, and apparently everyone-is-a-designer-and-engineer-now people on social platforms like X and Threads, I can say with certainty that almost all of the complaints about Nothing’s controversial Phone 3 are much ado about—excuse the pun—nothing. Taken as a whole, the Phone 3 is exactly what I expect from Nothing, the London-based technology startup led by ex-OnePlus cofounder Carl Pei that’s known for stirrin

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More is less: I can’t make myself use Nothing’s Glyph Matrix

androidauthority.com Unknown 2025-12-05 23:30:59

Nothing’s original Glyph Interface was the perfect level of gimmick — it added a bit of flair to the back of its first few phones, but always felt like it had a purpose. I trusted it for everything from following the charge of my battery to watching for an incoming phone call, and it was one cool thing I could always show off to my iPhone-toting friends. Unfortunately, the Nothing Phone 3 took everything I loved about the original Glyph Interface and sent it back to the drawing board. It replac

Topics: glyph interface like matrix phone

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A dive into open chat protocols

news.ycombinator.com Unknown 2025-12-03 16:00:54

A dive into open chat protocols I’m between projects right now, so as is my idiom I’m going to take some random topic that has caught me on a manic swing in my little bipolar life, and dive deeper into it for a few days. One of the low-key topics in the back of my mind is that “the world needs an open chat protocol that doesn’t suck”, and something made me start thinking seriously about XMPP again for the first time in a decade. I used XMPP myself a fair amount in its little Golden Age of the e

Topics: like matrix server servers xmpp

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Nothing Phone 3 review: Not quite a flagship

engadget.com Unknown 2025-12-09 08:30:06

Engadget has been testing and reviewing consumer tech since 2004. Our stories may include affiliate links; if you buy something through a link, we may earn a commission. Read more about how we evaluate products . Nothing did things differently with its third generation of phones. First came the midrange Nothing Phone 3a (and 3a Pro), which combined stylish hardware with a competitive price. Now, the company has launched the Nothing Phone 3, which it's calling its first "true flagship." At $799,

Topics: camera flagship like matrix phone

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Huawei's CloudMatrix 384 could outpace Nvidia in the AI race, study suggests

techspot.com Alfonso Maruccia 2025-12-11 03:32:00

Editor's take: The Trump administration attempted to curb China's ability to advance its computing capabilities through tariffs and other trade restrictions. However, this unprecedented trade war may have instead pushed Beijing to accelerate its efforts in developing powerful new AI systems. As newly appointed US tech czar David Sacks predicted just a month ago, Trump's tariffs appear to be backfiring in spectacular fashion. Chinese tech giant Huawei is reportedly developing a powerful AI syste

Topics: 384 ai cloudmatrix huawei nvidia

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Matrix Is Not Safe for EU Data Privacy

news.ycombinator.com Alex Henthorn-Iwane 2025-12-12 06:45:07

Matrix has long been promoted as the future of secure, decentralized communication. Backed by an open protocol, a vibrant developer community, and bridges to legacy systems, it promises interoperability and freedom from vendor lock-in. But when viewed through the lens of EU data privacy law, Matrix, and its commercial champion, Element, poses significant and underappreciated risks. For public-sector organizations, critical infrastructure, and privacy-conscious enterprises in the EU, the questio

Topics: element eu federation matrix metadata

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Why not Matrix (2023)

news.ycombinator.com Unknown 2025-12-18 20:10:04

why not matrix? haru at this point it seems like most of the tech community is familiar with matrix, the "open network for decentralized communication". lots of projects and communities have migrated from a host of other platforms, including irc, discord and slack with the promise that their new spaces will be free forever. i first discovered matrix in 2021 and have dedicated a lot of time trying to understand exactly how it works, as well as trawling through github issues to try and under

Topics: events matrix room server servers

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Why not Matrix (2024)

news.ycombinator.com I Write Code 2025-12-19 02:10:04

Archived from https://telegra.ph/why-not-matrix-08-07 March 22, 2024 Additional links here: https://benharri.org/matrix-sucks/ haru august 7, 2023 at this point it seems like most of the tech community is familiar with matrix, the “open network for decentralized communication”. lots of projects and communities have migrated from a host of other platforms, including irc, discord and slack with the promise that their new spaces will be free forever. i first discovered matrix in 2021 and have de

Topics: events matrix room server servers

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Nothing Phone 3 doesn’t win on value, but it won me over anyway

androidauthority.com Unknown 2025-12-20 18:00:58

Prakhar Khanna / Android Authority The Nothing Phone 3 is quirky and weird. It has riled up the Nothing lovers and haters alike. Social media forums indicate that a lot of people don’t like that camera layout, price, or have polarizing views on the Glyph Matrix. I might be on the less popular end for both. I liked the Nothing Phone 3’s odd design choices when I first saw it in person at the London launch event. I was taken aback by the price, sure. But I wanted to give it a try nonetheless. I’

Topics: design fun glyph matrix phone

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Using the Matrix Cores of AMD RDNA 4 architecture GPUs

news.ycombinator.com Unknown 2025-12-31 17:13:33

AMD RDNA 4 architecture GPUs AMD RDNA™ 4 architecture GPUs, which have 3rd-generation Matrix Cores, improved the performance of Generalized Matrix Multiplication (GEMM) operations. The table below compares theoretical FLOPS/clock/CU (floating point operations per clock, per compute unit) to previous generations. However, we changed the VGPR layout for the arguments of Wave Matrix Multiply Accumulate (WMMA) operations compared to the previous RDNA 3 generation [1]. Therefore, it does not have ba

Topics: 16 ele matrix rdna wmma

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Upcoming coordinated security fix for all Matrix server implementations

news.ycombinator.com Unknown 2026-01-09 03:49:58

Hi all, Over the last 6 months a major project has been underway by the Element server team and the Matrix.org Foundation security team to investigate “state resets”: scenarios where Matrix’s state resolution algorithm can give unexpected results. As part of this work we’ve identified two high severity protocol vulnerabilities (CVE-2025-49090; the other not yet allocated a CVE). Given the security implications of a federation protocol vulnerability, we’ve shared details under embargo over the

Topics: matrix room rooms server upgrade

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Samsung announces major security enhancements coming to One UI 8

bleepingcomputer.com Unknown 2026-01-26 08:43:04

Samsung has announced multiple data security and privacy enhancements for its upcoming Galaxy smartphones running One UI 8, its custom user interface on top of Android. Key highlights include the introduction of a system-level architecture named Knox Enhanced Encrypted Protection (KEEP), upgrades to Knox Matrix, and the addition of quantum resistance to WiFi connectivity. Keeping AI data secure With AI tools taking an increasing role in day-to-day smartphone use, protecting user inputs has be

Topics: data galaxy knox matrix samsung

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Functions Are Vectors (2023)

news.ycombinator.com Max Slater 2026-01-30 16:18:35

Functions are Vectors Conceptualizing functions as infinite-dimensional vectors lets us apply the tools of linear algebra to a vast landscape of new problems, from image and geometry processing to curve fitting, light transport, and machine learning. Prerequisites: introductory linear algebra, introductory calculus, introductory differential equations. This article received an honorable mention in 3Blue1Brown’s Summer of Math Exposition 3! Functions as Vectors Vectors are often first introd

Topics: align begin bmatrix end mathbf

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Nothing Says the Phone 3 Isn’t One Big Gimmick, but I’m Not So Sure

gizmodo.com James Pero 2026-02-04 17:26:32

Nothing CEO Carl Pei wants you to know one thing: the startup’s smartphones aren’t just relying on a schtick. The Phone 3, which was finally unveiled this week after seemingly never-ending leaks and teasers, is being billed as the company’s “true flagship,” which means… to be honest, I don’t know what the hell it means. But it’s clear that Nothing sees it as its most premium phone yet, which is evident not just through its own messaging but also its starting price. The Phone 3 costs $800—more th

Topics: flagship glyph matrix phone phones

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Nothing’s Phone 3 Really Goes Full-On Anti-iPhone, Huh?

gizmodo.com James Pero 2026-02-08 17:25:41

After a seemingly never-ending drip of leaks and teases, Nothing’s Phone 3 is finally here, along with what’s shaping up to be a divisive new aesthetic. The eye-catching Android phone, which was unveiled during a London launch event on Tuesday, will cost $799 and is being billed as the company’s “first true flagship.” To sell its premium package, Nothing is leaning into a new triple camera system, a refreshed design, and a circular Glyph “Matrix” display that, honestly, looks pretty damn fun. L

Topics: camera glyph like matrix phone

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I Finally Tried the Nothing Phone 3 and There's a Lot I Like

cnet.com See Full Bio 2026-02-09 06:30:00

After months of rumors and teases, the Nothing Phone 3 has finally been unveiled at a Tuesday launch event in London. Nothing is calling the phone its "first true flagship" and with good reason; the Phone 3 has higher specs and other quirky new features (like the Glyph Matrix) that set it apart from its cheaper siblings. I got to spend some time using the phone at the launch and while it was only a quick look, I'm already quite impressed. The Nothing Phone 3 will go on sale next week in the US

Topics: display glyph like matrix phone

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Nothing Just Killed Its Phone's Flashy Glyph Interface. I Think the Replacement Is Better

cnet.com See Full Bio 2026-02-09 06:30:02

Nothing just announced its long-awaited "first true flagship," the Nothing Phone 3, and killed off one of its most popular and unique phone features in the process. The flashing lights that crisscrossed the back of its previous phones, known as the Glyph Interface, is gone. In its place is something new -- a round black and white screen on the rear of the phone, adjacent to the cameras, which Nothing is calling the Glyph Matrix. With an interface of monochrome dots, the Matrix can show a range

Topics: glyph interface matrix phone said

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Nothing launches Phone 3: The new face of ‘affordable’ flagships

androidauthority.com Unknown 2026-02-09 12:30:17

Earlier this year, we saw Nothing take high-quality telephoto photography to the midrange space with the Phone 3a Pro and its periscope zoom. Change like that is the name of the game for Nothing in 2025, as the company reconsiders some past approaches to hardware, software, and even sales of its smartphones. And while some of the changes surrounding the Nothing Phone 3 have been more controversial than others, they ultimately come together to give us one curiously compelling package. Today in L

Topics: android charging glyph matrix phone

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From selfie mirror to Magic 8 Ball, here’s what you can do with the Nothing Phone 3’s Glyph Matrix

androidauthority.com Unknown 2026-02-09 12:30:26

TL;DR The Nothing Phone 3 replaces Nothing’s signature Glyph Interface LED lights with a monochrome micro-LED display called Glyph Matrix. Glyph Matrix supports customizable notifications, app interactions, games, camera countdowns, and live indicators. The device features a dedicated Glyph Button to control these functions. There’s also a red indicator on the back that lights up when video recording. After weeks of teasing and hyping, Nothing has just launched the Nothing Phone 3. Not only

Topics: glyph interface led matrix phone

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Nothing Phone 3 hands-on: A tiny, playful dot-matrix screen in the company's most expensive phone yet

engadget.com Unknown 2026-02-09 12:30:19

With the third generation of its smartphone series, Nothing made the unusual move to launch the cheaper ‘a’ line first, unveiling the Phone 3a and 3a Pro in March . Now, it’s time for its latest flagship. The Nothing Phone 3, starting at $799 (with a $899 option with 16GB of RAM) goes up against giants like the Google Pixel 9 and Samsung Galaxy S25 — a competitive slice of the smartphone world. Once again, though, there’s nothing in the market that quite resembles a Nothing, as the company attem

Topics: camera design glyph matrix phone

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Calculating the Fibonacci numbers on GPU

news.ycombinator.com Unknown 2026-02-11 17:10:19

Calculating the fibonacci numbers on GPU 21 Jun, 2025 In this blogpost we will show how to perform very fast calculation of the Fibonacci sequence using GPU programming. In this blogpost we will employ Thrust an NVIDIA library which uses concepts from modern C++ to make GPU programming easy. Introduction Scan is one of the fundamental examples for parallelizable algorithms. If you are interested in the foundations of the algorithm I refer you to a previous blogpost where I implemented scan i

Topics: auto matrix scan thrust using

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Here how the Nothing Phone 3’s new Glyph Matrix will work

androidauthority.com Unknown 2026-02-23 20:37:25

Nothing TL;DR Nothing’s new Glyph Matrix is a compact, programmable system replacing the original Glyph Interface on the upcoming Phone 3. The micro-LED cluster enables new features like custom animations, symbols, and reactive lighting while maintaining app-based notifications. Nothing says the design change allowed it to reclaim internal space and enhance the Phone 3’s visual identity with a smaller, circular layout. Nothing has revealed how its new Glyph Matrix system will work on the Not

Topics: design glyph matrix new phone

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Nothing Phone 3 says goodbye to Glyph Interface, hello to Glyph Matrix

androidauthority.com Unknown 2026-03-03 22:29:53

TL;DR Nothing teases its upcoming Phone 3 with a new design element called “Glyph Matrix.” The teaser suggests dot matrix-style lighting on the back of the device, potentially for more intricate light patterns. Previously leaked renders of the Phone 3 do not align with the newly teased Glyph Matrix design. In typical Carl Pei fashion, the Nothing Phone 3 hype train is at full speed. We’ve just about recovered from the heartbreak after learning about the Phone 3’s Snapdragon 8s Gen 4 processor

Topics: company design glyph matrix phone

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Latest Tech News

Automating Distro Updates in CI

Adjacency Matrix and std:mdspan, C++23

Analog optical computer for AI inference and combinatorial optimization

The maths you need to start understanding LLMs

The Little Book of Linear Algebra

Show HN: I built a toy TPU that can do inference and training on the XOR problem

Nothing Phone 3 Review: A Rule-Breaking Phone for Rebels

More is less: I can’t make myself use Nothing’s Glyph Matrix

A dive into open chat protocols

Nothing Phone 3 review: Not quite a flagship

Huawei's CloudMatrix 384 could outpace Nvidia in the AI race, study suggests

Matrix Is Not Safe for EU Data Privacy

Why not Matrix (2023)

Why not Matrix (2024)

Nothing Phone 3 doesn’t win on value, but it won me over anyway

Using the Matrix Cores of AMD RDNA 4 architecture GPUs

Upcoming coordinated security fix for all Matrix server implementations

Samsung announces major security enhancements coming to One UI 8

Functions Are Vectors (2023)

Nothing Says the Phone 3 Isn’t One Big Gimmick, but I’m Not So Sure

Nothing’s Phone 3 Really Goes Full-On Anti-iPhone, Huh?

I Finally Tried the Nothing Phone 3 and There's a Lot I Like

Nothing Just Killed Its Phone's Flashy Glyph Interface. I Think the Replacement Is Better

Nothing launches Phone 3: The new face of ‘affordable’ flagships

From selfie mirror to Magic 8 Ball, here’s what you can do with the Nothing Phone 3’s Glyph Matrix

Nothing Phone 3 hands-on: A tiny, playful dot-matrix screen in the company's most expensive phone yet

Calculating the Fibonacci numbers on GPU

Here how the Nothing Phone 3’s new Glyph Matrix will work

Nothing Phone 3 says goodbye to Glyph Interface, hello to Glyph Matrix

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