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Myths About Floating-Point Numbers (2021)

news.ycombinator.com Unknown 2025-11-17 23:22:37

Floating-point numbers are a great invention in computer science, but they can also be tricky and troublesome to use correctly. I’ve written about them already by publishing Floating-Point Formats Cheatsheet and presentation “Pitfalls of floating-point numbers” (“Pułapki liczb zmiennoprzecinkowych” – the slides are in Polish). Last year I was preparing for a more extensive talk about this topic, but it got cancelled, like pretty much everything in these hard times of the COVID-19 pandemic. So in

Topics: different floating numbers point use

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Should we get the option of a round Apple Watch and more? [Poll]

9to5mac.com Ben Lovejoy 2025-11-22 15:42:30

No, I get it: round watches are a very inefficient use of space, and there is likely a reason that the Apple Watch continues to dominate the market. But what a new piece argues for is not to replace the existing Apple Watch design, but instead to offer us a greater range of options … It’s not coincidence that Apple chose a rectangular display for the Apple Watch. This clearly offers the most efficient use of space, allowing some info-dense faces alongside simpler ones. If we ignore the frankl

Topics: apple different range ultra watch

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Study Reveals ChatGPT Gives Dangerous Guidance to Teens, Despite Safety Claims

cnet.com See Full Bio 2025-11-26 08:49:00

A disturbing new study reveals that ChatGPT readily provides harmful advice to teenagers, including detailed instructions on drinking and drug use, concealing eating disorders and even personalized suicide letters, despite OpenAI's claims of robust safety measures. Researchers from the Center for Countering Digital Hate conducted extensive testing by posing as vulnerable 13-year-olds, uncovering alarming gaps in the AI chatbot's protective guardrails. Out of 1,200 interactions analyzed, more th

Topics: ai chatgpt openai parents researchers

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The Ending of ‘Weapons’ Is Very Personal to Zach Cregger

gizmodo.com Germain Lussier 2025-11-26 15:20:21

You can’t watch a movie like Weapons and not sense that parts of it come from deep within a person. The portrayals of family, fear, and loss—it’s all heartbreaking and scary even before you get to the chills and thrills. Writer-director Zach Cregger fully admits the film was written as a way for him to cope with the loss of a good friend, but his personal connections to the material go even beyond that. Speaking to Vanity Fair, Cregger talked about some of the big reveals in the final act of th

Topics: alex cregger film movie parents

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8 Movies About Freaky Kids to Stream After ‘Weapons’

gizmodo.com Cheryl Eddy 2025-11-26 20:39:01

Weapons topped the box office this weekend, which is fantastic news for fans of original horror movies. The movie follows a town grappling with the unbelievable truth that an entire classroom of kids has vanished en masse—and the discovery of the sinister reason behind their disappearance. If Weapons has you in the mood to take in more tales of freaky children, the horror genre has many to choose from. Here are 10 cult classics featuring that same theme, which remains as evergreen as it is consi

Topics: buy children prime rent video

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How to Watch Man United vs. Fiorentina From Anywhere: Stream Preseason Friendly Soccer

cnet.com See Full Bio 2025-11-28 03:45:03

The Red Devils' preparations for the upcoming English Premier League campaign come to a close on Saturday as Man United takes on Italian outfit Fiorentina on home turf in its final preseason friendly. Below, we'll outline the best live TV streaming services to watch this friendly match as it happens, wherever you are in the world. We'll also explain how to use a VPN if the match isn't available where you are. Ruben Amorim's team has had an encouraging couple of weeks, with three wins from thre

Topics: fiorentina friendly streaming united vpn

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4 apps you should use instead of Google News

androidauthority.com Unknown 2025-11-30 23:00:17

Andy Walker / Android Authority While Google News is a popular choice, its user interface and limited customization options might not be for everyone. I used the app for a long time, but I eventually moved on to something better. After trying countless alternatives, I found a few that offer a more personalized and streamlined experience. Some of these apps provide a highly tailored experience, while others let you get to the gist of a story much faster. While I’ve listed my favorite first, the

Topics: different feedly flipboard ground news

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DJI’s first robovac features drone tech and a transparent design

theverge.com Andrew Liszewski 2025-12-03 00:33:01

is a senior reporter who’s been covering and reviewing the latest gadgets and tech since 2006, but has loved all things electronic since he was a kid. Posts from this author will be added to your daily email digest and your homepage feed. Following the reveal of its first 360-degree action camera a week ago, DJI has announced its first robot vacuum cleaner. The DJI Romo is available in three versions that are mostly differentiated by their appearance — two use transparent shells to reveal thei

Topics: avoid dji robovac romo transparent

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GoGoGrandparent (YC S16) Is Hiring Back End and Full-Stack Engineers

news.ycombinator.com Unknown 2025-12-03 10:01:09

About Us We're a digital caregiving platform dedicated to helping older and disabled adults live independently and thrive in their own homes—avoiding the need for retirement communities. We adapt on-demand APIs from companies like Uber, Lyft, DoorDash, and Instacart to meet the unique needs of individuals with cognitive, visual, mobility, and dexterity challenges. We're a highly profitable and fast-growing startup. Our team is fully remote, with a total engineering headcount of 12 (including thi

Topics: adults com companies gogograndparent js

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DJI goes from drones to dust with launch of new robot vacuum

androidauthority.com Unknown 2025-12-03 17:15:30

DJI TL;DR Drone-maker DJI has entered into a new category with the launch of its robot vacuum lineup. The DJI Romo uses two panoramic cameras along with three lasers to scan for objects while it is cleaning. There are three models, including a transparent Romo P, which looks like something Nothing would design. DJI is a popular name when it comes to drones, video stabilization rigs, and action cameras. But the company recently entered into an entirely new category outside its forte of imagin

Topics: cleaning comes dji romo transparent

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Why is it worth spending time on type theory? (2013)

news.ycombinator.com Unknown 2025-12-02 12:46:10

$\begingroup$ Type theory is to set theory what computable functions are to usual functions. It's a constructive setting for doing mathematics, so it allows to deal carefully with what can or can't be computed/decided (see intensionality vs. extensionality, or the different notions of reduction and conversion in $\lambda$-calculus). Furthermore, just like category theory, it gives a great insight on how certain mathematical objects are nothing but particular cases of a general construction, in

Topics: different like set theory type

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Why is it worth spending time on type theory?

news.ycombinator.com Unknown 2025-12-02 18:46:10

$\begingroup$ Type theory is to set theory what computable functions are to usual functions. It's a constructive setting for doing mathematics, so it allows to deal carefully with what can or can't be computed/decided (see intensionality vs. extensionality, or the different notions of reduction and conversion in $\lambda$-calculus). Furthermore, just like category theory, it gives a great insight on how certain mathematical objects are nothing but particular cases of a general construction, in

Topics: different like set theory type

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Could Netflix Have Plans for a ‘Stranger Things’ Spinoff?

gizmodo.com James Whitbrook 2025-12-06 00:00:02

Chris Hemsworth talks about his future as Thor and reaction to that recent YouTube video. Get a look at what’s coming on Invasion season 3. Plus, sneak peeks at the next Star Trek: Strange New Worlds. Spoilers, away! Trauma Or, Monsters All According to Variety, director Larry Fessenden has completed filming Trauma Or, Monsters All, a simultaneous sequel to his 1995 vampire movie, Habit, his 2019 Frankenstein movie, Depraved, and his 2023 werewolf movie, Blackout. Said to “place the filmmaker’

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Surveillance-Minded Parents Can Now Hide AirTags In Kids Shoes

futurism.com Unknown 2025-12-11 15:00:19

We interrupt your regularly scheduled doomscrolling to bring you a new development from the blossoming world of child surveillance: the sneaker brand Skechers is selling new kids shoes that come with a hidden AirTag compartment, enabling parents to quietly track their meandering progeny at all times. Readers, we're officially Skech'd out. According to the sneaker company, the tiny Apple tracking devices can be slotted into a hole in the heel of the shoes that's accessed by lifting the sole. Th

Topics: airtag apple parents shoes skechers

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AC or DC: Which Is Better?

wired.com Rhett Allain 2025-12-14 05:30:00

As the story goes, the rock band AC/DC took its name from a label on an old sewing machine in the Young brothers’ home. It must have meant that the machine could run on either alternating-current or direct-current electricity. Today, all the newfangled electronic devices in our homes run only on DC power—even lighting fixtures, now that LEDs have replaced incandescent bulbs. But wait. The electricity that comes out of your wall socket is alternating current. That means each device needs to conv

Topics: current dc direct electricity power

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Denver rent is back to 2022 prices after 20k new units hit the market

news.ycombinator.com Sarah Mulholland 2025-12-15 10:29:55

With 20,000 new units on the market, prices are down about 3.7 percent. New apartment buildings under construction in on Holly Street in Denver’s North Park Hill neighborhood, June 20, 2024. Apartment rents in the Denver metro continue to slide. The average rent in the area fell 3.7 percent in the second quarter compared to the prior year, according to a new report from the Apartment Association of Metro Denver. Rents started falling at the end of last year, the association’s data show. The

Topics: apartment denver new percent rents

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Skechers releases kid shoes with a hidden AirTag compartment

engadget.com Unknown 2025-12-18 15:10:41

Skechers just released a helicopter parent's dream shoe. Find My Skechers is a new line of children's shoes that encourages parents to hide an Apple AirTag under the heel. If tracking them on Snapchat wasn't enough and tracking their smartwatch didn't quite cut it, now you can hide an AirTag on their person. Remember running around the neighborhood with your friends and being told to be home for dinner? Or perhaps biking to and from school? You were figuring out how to navigate the world on you

Topics: airtag hide parents shoes skechers

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Dropbox is pulling the plug on its password manager

engadget.com Unknown 2025-12-18 15:47:20

Dropbox is saying goodbye to its password manager after five years of service. This leaves current customers in a lurch, as the company has also announced that users only have a few months to extract all of their data. This discontinuation will happen in phases, but October 28 is the day Dropbox Passwords will be entirely shuttered. On August 28, the platform will become view-only in both the mobile app and browser extension. The autofill functionality also deactivates on that date. On Septemb

Topics: 28 browser current dropbox users

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Microsoft is revamping Windows 11’s Task Manager so its numbers make more sense

arstechnica.com Unknown 2025-12-21 20:18:03

Microsoft devotes most of its time and energy these days to promoting new AI- and Copilot-related features for Windows 11, but the company's Windows Insider builds are still full of small tweaks and changes aimed at improving longstanding Windows features for people who just want to use their PC the way they always have. New updates that began rolling out to testers in the Windows Insider program yesterday include a couple of small but meaningful changes for Windows power users. First, Microsof

Topics: cpu different microsoft usage windows

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Why this SSD docking station is one of the best investments I've made for my PC

zdnet.com Jack Wallen 2025-12-25 00:03:00

Sabrent USB SSD Docking Station ZDNET's key takeaways The Sabrent USB SSD 4-bay docking station is available now on Amazon for $72. This docking station makes adding external drives to your system a total plug-and-play affair. The case is plastic, so it feels a bit cheap but that doesn't get in the way of performance. View now at Amazon At Amazon, the Sabrent USB SSD docking station is currently on sale for $72, a savings of $18. It seems I'm always running out of room on my iMac drives. Why

Topics: docking drives sabrent station usb

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Fourble turns lists of MP3 files hosted anywhere into podcasts

news.ycombinator.com Unknown 2025-12-21 11:58:35

Browse by category This functionality is currently under construction, but you can now also (to some extent) browse the archives by category.

Topics: archives browse category construction currently

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Ageing accelerates around age 50 ― some organs faster than others

news.ycombinator.com Ledford 2025-12-25 11:19:11

Ageing of many tissues accelerates around age 50, according to an analysis of tissues in people ranging from teenagers to individuals in their sixties.Credit: Karen Haibara/AFP/Getty It is a warning that middle-aged people have long offered the young: ageing is not a smooth process. Now, an exhaustive analysis of how proteins change over time in different organs backs up that idea, finding that people experience an inflection point at around 50 years old, after which ageing seems to accelerate.

Topics: age ageing different people says

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Why MIT switched from Scheme to Python (2009)

news.ycombinator.com Unknown 2025-12-26 12:38:16

Costanza asked Sussman why MIT had switched away from Scheme for their introductory programming course, 6.001. This was a gem. He said that the reason that happened was because engineering in 1980 was not what it was in the mid-90s or in 2000. In 1980, good programmers spent a lot of time thinking, and then produced spare code that they thought should work. Code ran close to the metal, even Scheme — it was understandable all the way down. Like a resistor, where you could read the bands and know

Topics: 001 code different know like

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Why MIT Switched from Scheme to Python (2009)

news.ycombinator.com Unknown 2025-12-26 18:38:16

Costanza asked Sussman why MIT had switched away from Scheme for their introductory programming course, 6.001. This was a gem. He said that the reason that happened was because engineering in 1980 was not what it was in the mid-90s or in 2000. In 1980, good programmers spent a lot of time thinking, and then produced spare code that they thought should work. Code ran close to the metal, even Scheme — it was understandable all the way down. Like a resistor, where you could read the bands and know

Topics: 001 code different know like

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The POSIX specification of vi

news.ycombinator.com Unknown 2025-12-25 08:01:27

Certain terminals do not have all the capabilities necessary to support the complete vi definition. When these commands cannot be supported on such terminals, this condition shall not produce an error message such as "not an editor command" or report a syntax error. The implementation may either accept the commands and produce results on the screen that are the result of an unsuccessful attempt to meet the requirements of this volume of POSIX.1-2024 or report an error describing the terminal-rel

Topics: character command current line shall

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iPadOS 26 preview: The rare software update that makes (most) old hardware feel new

arstechnica.com Unknown 2025-12-29 15:18:54

The Mac and the iPad are different devices that do different things. This has been the line from Apple executives, from its initial introduction to the advent of touchscreen PCs to just last month when Apple’s Craig Federighi talked to us about iPadOS 26’s new multitasking features. But it sometimes feels like this internal commitment to keeping the devices separate has held the iPad back as its hardware has become more capable. A mouse cursor? Sure, we’ll add it, after a few years of insisting

Topics: different ipad ll multitasking new

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AT&T and T-Mobile now both claim the best network crown, but which one is really the best?

androidauthority.com Unknown 2026-01-01 20:35:31

Edgar Cervantes / Android Authority TL;DR AT&T was named best network by Rootmetrics, while T-Mobile claims the Speedtest crown, showing there’s no single “best” carrier for everyone. Different awards use different methods, so the right carrier depends on your priorities and where you live. Local coverage varies a lot, so always check how each carrier performs in your area before deciding. Recently, Rootmetrics awarded AT&T as the best network for the first half of 2025. This might sound str

Topics: best different mobile network verizon

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Why I love my little round Dell USB-C mobile adapter

theverge.com Barbara Krasnoff 2026-01-03 20:00:00

Barbara Krasnoff is officially the reviews editor for The Verge, but although she has done a great deal of reviewing in her time, she doesn’t tend to do a lot of it in her current position. “I was originally hired here to write and edit to-do articles,” she explains. “Now, I spend most of my time editing, overseeing various projects, and coaxing staffers to write about their favorite stuff.” Where did you first hear about the Dell mobile adapter? I didn’t actually hear about it — I saw it at a

Topics: cable different port ports usb

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The United States withdraws from UNESCO

news.ycombinator.com Unknown 2026-01-04 14:09:49

We’re sorry, this site is currently experiencing technical difficulties. Please try again in a few moments. Exception: forbidden

Topics: currently difficulties exception experiencing forbidden

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The United States Withdraws from UNESCO

news.ycombinator.com Unknown 2026-01-04 20:09:49

We’re sorry, this site is currently experiencing technical difficulties. Please try again in a few moments. Exception: forbidden

Topics: currently difficulties exception experiencing forbidden

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Latest Tech News

Myths About Floating-Point Numbers (2021)

Should we get the option of a round Apple Watch and more? [Poll]

Study Reveals ChatGPT Gives Dangerous Guidance to Teens, Despite Safety Claims

The Ending of ‘Weapons’ Is Very Personal to Zach Cregger

8 Movies About Freaky Kids to Stream After ‘Weapons’

How to Watch Man United vs. Fiorentina From Anywhere: Stream Preseason Friendly Soccer

4 apps you should use instead of Google News

DJI’s first robovac features drone tech and a transparent design

GoGoGrandparent (YC S16) Is Hiring Back End and Full-Stack Engineers

DJI goes from drones to dust with launch of new robot vacuum

Why is it worth spending time on type theory? (2013)

Why is it worth spending time on type theory?

Could Netflix Have Plans for a ‘Stranger Things’ Spinoff?

Surveillance-Minded Parents Can Now Hide AirTags In Kids Shoes

AC or DC: Which Is Better?

Denver rent is back to 2022 prices after 20k new units hit the market

Skechers releases kid shoes with a hidden AirTag compartment

Dropbox is pulling the plug on its password manager

Microsoft is revamping Windows 11’s Task Manager so its numbers make more sense

Why this SSD docking station is one of the best investments I've made for my PC

Fourble turns lists of MP3 files hosted anywhere into podcasts

Ageing accelerates around age 50 ― some organs faster than others

Why MIT switched from Scheme to Python (2009)

Why MIT Switched from Scheme to Python (2009)

The POSIX specification of vi

iPadOS 26 preview: The rare software update that makes (most) old hardware feel new

AT&T and T-Mobile now both claim the best network crown, but which one is really the best?

Why I love my little round Dell USB-C mobile adapter

The United States withdraws from UNESCO

The United States Withdraws from UNESCO

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