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Ask HN: What to Learn for Math for Modeling?

news.ycombinator.com Unknown 2025-12-31 16:57:01

parametric cubic curve boundary representation blending function spline b-spline cubic bezier curve de casteljau algorithm I have been diving into these topics since few days and I have not understood anything. I tried peter shirley's textbook on Computer Graphics. Foley et al, Hearn baker etc... It is clear to me that I lack the mathematics preriquisites for understanding this. Thus, I am deeply asking for resources that I can do to brush up. Me being a computer engineering graduate I h

Topics: computer cubic curve spline understanding

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RSS is awesome

news.ycombinator.com Unknown 2026-01-02 16:04:01

☀️ RSS is Awesome NetNewsWire is my latest most-used iPhone app. It is a simple, free RSS reader. RSS is an old technology that it seems most people have forgotten about. Here's how it works: you enter a link to an RSS "feed", and your app pulls data from this feed every few minutes or so. When there is a new post from your feed, that post is pulled directly to your app. RSS is really simple, so it is still very well supported. Notably, all substack publications automatically have an RSS fee

Topics: app feed posts reading rss

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Sometimes CPU cores are odd

news.ycombinator.com Xe Iaso 2026-01-02 14:39:18

One of the biggest lessons that I've learned in my career is that all software has bugs, and the more complicated your software gets the more complicated your bugs get. A lot of the time those bugs will be fairly obvious and easy to spot, validate, and replicate. Sometimes, the process of fixing it will uncover your core assumptions about how things work in ways that will leave you feeling like you just got trolled. Today I'm going to talk about a single line fix that prevents people on a large

Topics: anubis bugs core cores pro

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A Deep Dive into Debian 13 /tmp: What's New, and What to Do If You Don't Like It

news.ycombinator.com Unknown 2026-01-02 20:39:44

Debian 13 “Trixie” introduces an important change to /tmp. Traditionally, it’s been just another filesystem, albeit with some special permissions that allows everyone on the system to use it without being able to remove each other’s files. In Trixie, it’s been moved off the disk into memory – specifically a type of memory called tmpfs. To quote the tmpfs man page: The tmpfs facility allows the creation of filesystems whose contents reside in virtual memory. Since the files on such filesystems

Topics: files memory mount tmp tmpfs

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Claude Sonnet Will Ship in Xcode

news.ycombinator.com Unknown 2026-01-02 17:44:27

This page requires JavaScript. Please turn on JavaScript in your browser and refresh the page to view its content.

Topics: browser content javascript page refresh

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The CDC Implosion Continues as Staff Stage Unprecedented Walkout

gizmodo.com Ed Cara 2026-01-02 10:32:44

The real-time collapse of the Centers for Disease Control and Prevention has picked up the pace. Following the government’s attempted firing and pressuring of several senior CDC officials to step down this week, CDC staff staged a dramatic display of support for its departing leaders this afternoon. The action was a direct response to the Trump administration’s recent meddling at the once well-respected public health agency. The staff, which included remaining senior officials, performed a “cla

Topics: cdc health members monarez public

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Don’t Worry, ‘Wednesday’ Fans, the Coma Is Almost Over

gizmodo.com Sabina Graves 2026-01-02 17:20:13

The Wednesday hype might seemingly be waning, but it’s worth noting that perhaps the Tim Burton series could just be experiencing a lull thanks to its strange release schedule. With season two part one’s debut going from the top of the streamer’s charts to dropping 50%, according to What’s on Netflix, this might just be a sign that fans are eagerly awaiting to binge the season in full. One of our criticisms of the staggered summer and fall releases was that despite this season being the best ye

Topics: loose netflix new season wednesday

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780,000 Ryobi Pressure Washers Recalled Due to Explosion Risk

cnet.com See Full Bio 2026-01-02 16:40:00

Owning a pressure washer can seem like a boon for homeowners wanting to clean decks, driveways and other outdoor surfaces. But if you own one, check the brand and model immediately: around 780,000 Ryobi-branded pressure washers sold at Home Depot and other US and Canadian retailers are being recalled. The hazard is serious, according to a notice posted Thursday by the Consumer Product Safety Commission. "The pressure washer's capacitor can overheat and burst, causing parts to be forcefully ejec

Topics: affected pressure ryobi sold washers

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Today's NYT Mini Crossword Answers for Friday, Aug. 29

cnet.com See Full Bio 2026-01-02 20:07:00

Gael Cooper CNET editor Gael Fashingbauer Cooper, a journalist and pop-culture junkie, is co-author of "Whatever Happened to Pudding Pops? The Lost Toys, Tastes and Trends of the '70s and '80s," as well as "The Totally Sweet '90s." She's been a journalist since 1989, working at Mpls.St.Paul Magazine, Twin Cities Sidewalk, the Minneapolis Star Tribune, and NBC News Digital. She's Gen X in birthdate, word and deed. If Marathon candy bars ever come back, she'll be first in line.

Topics: 1989 author cooper gael journalist

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Thirsty data centres boom in drought-hit Mexico

feeds.bbci.co.uk Unknown 2026-01-02 22:03:41

Thirsty data centres boom in drought-hit Mexico 59 minutes ago Share Save Suzanne Bearne Technology Reporter, Querétaro, Mexico Share Save Arterra/Getty Images Querétaro is known for its impressive stone aqueduct Located in the middle of Mexico, Querétaro is a charming and colourful colonial-style city known for its dazzling stone aqueduct. But the city, and state of the same name, is also recognised for a very different reason - as Mexico's data centre capital. Across the state companies inc

Topics: centres data querétaro says water

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Affirm's stock soars 15% on earnings, revenue beat

cnbc.com Jennifer Elias 2026-01-02 22:27:07

Max Levchin, co-founder of PayPal and chief executive officer of financial technology company Affirm, arrives at the Sun Valley Resort for the annual Allen & Company Sun Valley Conference, in Sun Valley, Idaho. Affirm shares rose 15% in extended trading on Thursday after the provider of buy now, pay later loans reported better-than-expected earnings and revenue for the fiscal fourth quarter. Here's how the company did versus LSEG consensus estimates: EPS: 20 cents vs. 11 cents estimated 20 c

Topics: affirm cents million revenue year

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Meta is bringing AI-powered NPCs to the metaverse

engadget.com Unknown 2026-01-02 22:16:05

Developers building for Meta’s metaverse platform will soon be able to create AI-powered NPCs for Horizon Worlds. The company previewed the move, which is coming “very soon” as part of a developer update that adds new generative AI tools for developers. Once available, developers will be able to use Meta’s Worlds Desktop Editor to create NPCs that can hold “lifelike” conversations with players via voice chat. The company has previously experimented with NPCs for its metaverse, but the upcoming

Topics: ai create developers meta npcs

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Thrashing

news.ycombinator.com Unknown 2025-12-31 22:55:43

August 26, 2025 I’ve invested in a new odometer to help my car go faster. Accountability is important, and as a driver I believe the most important thing I can do is set measurable, achievable and inspiring goals for the people pushing my car down the road. I’m never sure what to say to people who… don’t quite seem to realize they sound like this. I think, what chain of reasoning brought us to this? How did we get here? But I think I know how we got here. So, about this link. No disrespect

Topics: just like people real tools

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Death by PowerPoint: the slide that killed seven people

news.ycombinator.com James Thomas 2026-01-02 20:44:47

We’ve all sat in those presentations. A speaker with a stream of slides full of text, monotonously reading them off as we read along. We’re so used to it we expect it. We accept it. We even consider it ‘learning’. As an educator I push against ‘death by PowerPoint’ and I'm fascinated with how we can improve the way we present and teach. The fact is we know that PowerPoint kills. Most often the only victims are our audience’s inspiration and interest. This, however, is the story of a PowerPoint s

Topics: crew mission powerpoint shuttle space

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RSS Is Awesome

news.ycombinator.com Unknown 2026-01-02 22:04:01

☀️ RSS is Awesome NetNewsWire is my latest most-used iPhone app. It is a simple, free RSS reader. RSS is an old technology that it seems most people have forgotten about. Here's how it works: you enter a link to an RSS "feed", and your app pulls data from this feed every few minutes or so. When there is a new post from your feed, that post is pulled directly to your app. RSS is really simple, so it is still very well supported. Notably, all substack publications automatically have an RSS fee

Topics: app feed posts reading rss

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You Can Now Sign Up for Ad-Free Peacock Through Prime Video

cnet.com See Full Bio 2026-01-02 21:55:02

Fans of NBC series, Universal Pictures movies and steamy summer dating shows have a new way to access the streaming service that specializes in all of them. Peacock Premium Plus, NBCUniversal's ad-free streaming tier, is now available as a Prime Video add-on subscription as part of a broader set of agreements between Comcast NBCUniversal and Amazon, the online shopping giant revealed Thursday. Peacock Premium Plus costs $17 per month or $170 per year, the standard price after last month's hike

Topics: peacock plus premium prime video

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Today's NYT Connections: Sports Edition Hints and Answers for Aug. 29, #340

cnet.com See Full Bio 2026-01-02 22:12:00

Looking for the most recent regular Connections answers? Click here for today's Connections hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle and Strands puzzles. Today's Connections: Sports Edition was relatively simple for what I consider to be the toughest of the New York Times' puzzles. If you're struggling but still want to solve it, read on for hints and the answers. Connections: Sports Edition is out of beta, making its debut on Super Bowl Sunda

Topics: answers connections group sports today

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Kindle Colorsoft Kids Review (2025): Great for All Ages

wired.com Nena Farrell 2026-01-02 08:37:00

The age-old question (if “age-old” can be used for technology developed in the past 20 years) persisted as I tested the newest designed-for-kids Kindle: Should you give kids a screen when you could give them something else? If you are going to give your kids a screen, a reflective e-paper screen that's easier on the eyes than an emissive screen is one of the best ways to go. While a Kindle can't fully replace the experience of turning a page on a physical book, I loved reading from a young age

Topics: books colorsoft kids kindle screen

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The Duty-Free Loophole Is Closing. What That Means for You—and Your Packages

wired.com Boone Ashworth 2026-01-02 20:19:13

Want to buy something online and have it shipped into the US? Well, get ready to pay more for the privilege. Starting Friday, small packages imported into the country will be subjected to a duty. The Trump administration is levying a new tax on all packages coming into the country—regardless of value—starting August 29. This is the latest push in President Trump’s global trade war. The new policy is the result of an executive order issued in July that officially suspended the de minimis import

Topics: country fee new sellers value

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Tesla FSD turns off more U.S. consumers than its attracts, survey finds

cnbc.com Lora Kolodny 2026-01-03 03:16:06

Elon Musk reacts during a press event with U.S. President Donald Trump (not pictured), at the White House in Washington, D.C., U.S., May 30, 2025. Elon Musk's fervent promotion of Tesla 's self-driving technology isn't doing much to win over prospective buyers. According to a new survey, more U.S. consumers say that Tesla's FSD, or Full Self-Driving (Supervised) systems, would push them away from the brand rather than drawing them to it. The Electric Vehicle Intelligence Report for August, pu

Topics: fsd make musk said tesla

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Google's AI Is Committing a Unique Evil: Giving Gamers Tips That Are Actually False

futurism.com Unknown 2026-01-03 02:28:30

Back in the day, getting fooled by a fake cheat code from word of mouth or early web forums was almost a rite of passage for gamers. It's been a long time since people were playing Pokemon Yellow and Final Fantasy for the first time, however, and AI has apparently taken over the role that used to be filled by your idiot brother. As veteran gaming journalist Stephen Totilo reported in his Game File newsletter, Google's disastrous AI Overviews have been caught repeatedly giving terrible advice o

Topics: ai game goblin google overviews

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Nous Research drops Hermes 4 AI models that outperform ChatGPT without content restrictions

venturebeat.com Michael Nuñez 2026-01-03 02:46:07

Want smarter insights in your inbox? Sign up for our weekly newsletters to get only what matters to enterprise AI, data, and security leaders. Subscribe Now Nous Research, a secretive artificial intelligence startup that has emerged as a leading voice in the open-source AI movement, quietly released Hermes 4 on Monday, a family of large language models that the company claims can match the performance of leading proprietary systems while offering unprecedented user control and minimal content r

Topics: ai hermes models nous research

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9to5Mac Daily: August 28, 2025 – AirPods Pro 3 rumors, Apple acquisition strategies

9to5mac.com Seth Kurkowski 2026-01-03 03:53:57

Listen to a recap of the top stories of the day from 9to5Mac. 9to5Mac Daily is available on iTunes and Apple’s Podcasts app, Stitcher, TuneIn, Google Play, or through our dedicated RSS feed for Overcast and other podcast players. Sponsored by BMX: Check out BMX’s SolidSafe™ power bank, built with cutting-edge solid-state battery technology that eliminates flammable liquid lithium for a safer, more durable charging experience. New episodes of 9to5Mac Daily are recorded every weekday. Subscribe

Topics: 9to5mac daily episodes podcast podcasts

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US targets North Korean IT worker army with new sanctions

bleepingcomputer.com Unknown 2026-01-02 23:11:23

The U.S. Treasury’s Office of Foreign Assets Control (OFAC) has sanctioned two individuals and two companies associated with North Korean IT worker schemes that operate at the expense of American organizations. These schemes involve placing in U.S. firms skilled tech workers with stolen or fabricated identities and using so-called “laptop farms” to hide the true location of the employees. The workers funnel their earnings to the DPRK regime to fund the regime's weapons program. They also often

Topics: andreyev companies dprk sanctioned workers

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Google warns Salesloft breach impacted some Workspace accounts

bleepingcomputer.com Unknown 2026-01-03 03:09:24

Google now reports that the Salesloft Drift breach is larger than initially thought, warning that attackers also used stolen OAuth tokens to access a small number of Google Workspace email accounts in addition to stealing data from Salesforce instances. "Based on new information identified by GTIG, the scope of this compromise is not exclusive to the Salesforce integration with Salesloft Drift and impacts other integrations,' warns Google. "We now advise all Salesloft Drift customers to treat

Topics: drift google salesforce salesloft tokens

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You no longer need JavaScript: an overview of what makes modern CSS so awesome

news.ycombinator.com Unknown 2026-01-03 00:49:34

You no longer need JavaScript So much of the web these days is ruined by the bloat that is modern JavaScript frameworks. React apps that take several seconds to load. NextJS sites that throw random hydration errors. The node_modules folder that takes up gigabytes on your hard drive. It’s awful. And you don’t need it. Name Status Type Size Time app 200 document 153.8 kB 51 ms 6920616d20612066 -s.p.6f6e7421 .woff2 200 font 31.5 kB 32 ms 686579206d652074 -s.p.6f6f2121 .woff2 200 font 28.5 kB 116

Topics: color css like use yap

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Speed-coding for the 6502 – a simple example

news.ycombinator.com Unknown 2026-01-03 02:24:42

Usually clocked at 1MHz, with no hardware support for multiplication or division, and limited support for bit shifting, it is often important to take a step back from an algorithm in order to make it do the same thing, hundreds of times faster. Note: this article doesn’t describe any technological breakthrough or extremely clever new way of doing things. It’s just a real-life example using a little part of an algorithm I made, and where at first, I stopped at step 2 instead of going all the way

Topics: 256 bit carry high value

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Sometimes CPU cores are odd – Anubis

news.ycombinator.com Xe Iaso 2026-01-03 02:39:18

One of the biggest lessons that I've learned in my career is that all software has bugs, and the more complicated your software gets the more complicated your bugs get. A lot of the time those bugs will be fairly obvious and easy to spot, validate, and replicate. Sometimes, the process of fixing it will uncover your core assumptions about how things work in ways that will leave you feeling like you just got trolled. Today I'm going to talk about a single line fix that prevents people on a large

Topics: anubis bugs core cores pro

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TuneD is a system tuning service for Linux

news.ycombinator.com Unknown 2025-12-30 04:03:57

Introduction TuneD is a system tuning service for Linux. It: monitors connected devices using the udev device manager device manager tunes system settings according to a selected profile supports various types of configuration like sysctl , sysfs , or kernel boot command line parameters, which are integrated in a plug-in architecture , , or kernel boot command line parameters, which are integrated in a plug-in architecture supports hot plugging of devices and can be controlled from the comm

Topics: example github profile profiles tuned

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Expert LSP the official language server implementation for Elixir

news.ycombinator.com Unknown 2026-01-03 02:36:36

Expert Expert is the official language server implementation for the Elixir programming language. Installation You can download Expert from the releases page for your operating system and architecture. For editor specific installation instructions, please refer to the Installation Instructions Nightly Builds If you want to try out the latest features, you can download a nightly build. Using the GH CLI, you can run the following command to download the latest nightly build: gh release dow

Topics: build download editor expert nightly

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Latest Tech News

Ask HN: What to Learn for Math for Modeling?

RSS is awesome

Sometimes CPU cores are odd

A Deep Dive into Debian 13 /tmp: What's New, and What to Do If You Don't Like It

Claude Sonnet Will Ship in Xcode

The CDC Implosion Continues as Staff Stage Unprecedented Walkout

Don’t Worry, ‘Wednesday’ Fans, the Coma Is Almost Over

780,000 Ryobi Pressure Washers Recalled Due to Explosion Risk

Today's NYT Mini Crossword Answers for Friday, Aug. 29

Thirsty data centres boom in drought-hit Mexico

Affirm's stock soars 15% on earnings, revenue beat

Meta is bringing AI-powered NPCs to the metaverse

Thrashing

Death by PowerPoint: the slide that killed seven people

RSS Is Awesome

You Can Now Sign Up for Ad-Free Peacock Through Prime Video

Today's NYT Connections: Sports Edition Hints and Answers for Aug. 29, #340

Kindle Colorsoft Kids Review (2025): Great for All Ages

The Duty-Free Loophole Is Closing. What That Means for You—and Your Packages

Tesla FSD turns off more U.S. consumers than its attracts, survey finds

Google's AI Is Committing a Unique Evil: Giving Gamers Tips That Are Actually False

Nous Research drops Hermes 4 AI models that outperform ChatGPT without content restrictions

9to5Mac Daily: August 28, 2025 – AirPods Pro 3 rumors, Apple acquisition strategies

US targets North Korean IT worker army with new sanctions

Google warns Salesloft breach impacted some Workspace accounts

You no longer need JavaScript: an overview of what makes modern CSS so awesome

Speed-coding for the 6502 – a simple example

Sometimes CPU cores are odd – Anubis

TuneD is a system tuning service for Linux

Expert LSP the official language server implementation for Elixir

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