skysight-inc/HackerNews huggingface dataset:
The philosophy of LADR is described in his paper Down with determinants: https://www.axler.net/DwD.html. In short, he thinks they obscure proofs. I love the book, but AFAIK only the compactified version (excluding all proofs, examples, and exercises, along with most comments) is open access: https://linear.axler.net/LinearAbridged.pdf.

IMHO, since the OP wants to apply linear algebra to real world problems, a better approach is to go with a matrix analysis book. Strang is very popular, but my favorite is http://matrixanalysis.com/Contents.html. Axler is a few notches higher in terms of abstraction. Hence, you won't learn lots of important practical results about matrices. In case of going with Axler, I'd use the previous edition. It's a shame they have ruined the typesetting by adding so many distracting color boxes and different fonts.

Personally, I'd go with Hubbard & Hubbard: https://matrixeditions.com/5thUnifiedApproach.html. It's a work of art that takes you from pre-calculus till multivariate calculus and analysis, along with all necessary linear algebra. Great mix of rigor, intuitions and practical details. At this level, as Hubbard points out, it's very useful to combine linear algebra with calculus & real analysis.
Imagine a person that is totally ignorant of the fact that major corporations regularly engage in fraud and is willing to give them all a pass
> But those previous generations of software also lacked things that we're no longer willing to give up -- security, accessibility, internationalization, etc. That doesn't mean we have to settle for the excesses of Electron, React, etc. But it does mean that, at least for software that needs qualities like the ones I listed above, we can't just go back to the ways software used to be developed for older computers. So, I think you're right about the danger of nostalgia.

I think that's precisely the danger. It's the danger of using nostalgia to feed into a purity spiral. We can simultaneously acknowledge that there's problem where we create bad software that wastefully uses resources on a user's computer while understanding that part of modern development has made computing much safer and more accessible than it used to be. Instead of looking _backward_, we can look _forward_ to a future where we can continue to be safe and accessible while not being as wasteful with a user's resources.
At a previous org, I discovered most of the product management folks did not have access to github. So if someone (not an engineer) was trying to figure out why Joe changed feature X, they couldn't do it with a PR. They only had access to Jira.
As a teenager I wanted, demanded this. I wanted to be up late (2 to 3AM) for a variety of reasons (none to do with homework), and waking up early was absolute torture to me at the time. I did other jobs in the subsequent decades where I felt the same. It wasn't until recently that I realized it had nothing to do with the 24-hour clock, and everything to do with temperature, connectivity/socialization, and internal timing; I can't sleep if it's hot during the day, I want to socialize with others across the globe when they're available and when I have no other distractions, and I personally seem to run on a roughly 30-hour cycle (20 up 10 down is ideal for me). I am well aware of all the sleep hygiene concepts of light -- blue and otherwise -- and diet and so on, have tried the medical regimens both naturopathic and academically accepted, and have done many sleep studies to ensure it isn't an apnea/REM issue. I'm just picky and different. I believe we all are.
A Design Battle Between Chip Engineers Led to Polaroid’s SX-70 Camera (1989)
"Many of the X who Y" seems like a useful pattern. It's annoying, but we have to be extra careful when we step into these kinds of debates (as opposed to, like, debates about register allocators), because they're especially flammable. But I also think the exercise of revising comments to devenomize them (especially when you didn't mean to mix any venom in!) is valuable even outside of HN.
As an American, if you're telling me we are looking forward to another Vietnam or Afghanistan I say no thanks. I wish Ukraine the best of luck and want no part of it. I think we're collectively over this military industrial complex constantly stirring up shit.
Would you mind explaining the biochemistry of the following statement: "The vaccines however generate large quantities of the more potent Wuhan 2019 spike."

Please including at least a few sentences that precisely describe the differences in the structure and chemistry of what you call the "Wuhan 2019 spike" compared to the Omicron spike protein.

It would be great if you could also explain specifically how differences between the structure and chemistry of the "Wuhan 2019 spike" and the Omicron spike protein support the allegations you're making.

Do you think differences in spike protein structure and chemistry have implications for immune system modulation via signaling molecules? If so, which signaling molecules and which cell lines?
This is why I asked "what field are you learning Linear Algebra?".

Elsewhere, I've discovered that this poster is going into image processing, which is likely "signals and systems" linear algebra.

In signals and systems, your vectors can have infinite dimension, and these infinite-dimension vectors Fourier-transform into other infinite dimension vectors under a new basis.

Any field with more than "3 dimension" vectors / matricies is very difficult to visualize geometrically. Trying to do so is counter-productive to the understanding of the field. This geometric interpretation is really useful in graphics programming / 3d animation however.

---------

Or perhaps a more concrete example... your "visualize the matrix in X dimensions" advice just doesn't cut it if you're dealing with an 8x8 matrix JPEG DCT coefficient matrix (https://en.wikipedia.org/wiki/JPEG#Discrete_cosine_transform), unless you can imagine 8-diemsional space in your brain.

On the other hand, imagining the 8x8 matrix as 64 linearly-independent "Basis" to your 64-dimension discrete signal is... easier. (Well... for a definition of easier at least). And the transform from time domain into Fourier domain is a transformation in basis that contains the same information.
You're supposed that Google does not discriminate on the basis of religious belief? In a country where that is explicitly illegal?
This estimate has British economic woes mostly down to Brexit, compared to a model built from the observed performance of other advanced economies:

https://www.cer.eu/publications/archive/policy-brief/2022/co...
Through that is not how neural nets work.

It's anything but trivial to make a neural net properly abstract over some "camera position parameter".

More over it's nearly impossible to be sure it did properly abstract in all cases. I.e. it might have abstracting in every case but some arbitrary edge case which for a human looks no special at all but for some arbitrary reason is for the NN.

Anyway this is highly speculative and might very well be unrelated to the given Teslas behaviour.
When and How to Invalidate Cache
its fun though
Never seen anyone injured himself doing a handstand. But running has a high injury rate and still a lot of people find benefit practicing it
Looking to economic growth only without any regard for unemployment is myopic.
That's mlock() and it does already exist. People really like to reinvent things their OS already has because they're one step too far above the kernel to use them - like building a web service to send files between two internal servers when you could use NFS.
The cloud gray zone–secret agents installed by cloud service providers
I've found unsweetened oat milk to be pretty amazing with coffee.
Has there ever been a time period where a BSD was known for having a notably better WiFi stack than Linux? I know the BSDs have a great reputation for their network stack overall and in particular the utilities for configuration (especially if you are willing to ignore the missing features), but I've never had the impression that there was any advantage specifically with regards to wireless. I seem to recall the BSDs historically having much narrower driver support and being years behind on features like 802.11ac.
Oldie but a goodie: Herb Gross’ stuff stands up.

https://ocw.mit.edu/courses/res-18-008-calculus-revisited-co...
I find it really interesting that for Mercedes L3 self driving they are even willing to put their money where their mouth is and take liability for the car in self driving mode.
It would be good to define a nullspace for the matrix and then show you can show the linear independence of the corresponding homogeneous system (of vectors if you wish) by having a non-zero determinant implying there is no nontrivial solution. That (L.I.) of two basis functions can just be shown by taking their sum to be zero and taking the derivative of this equation as another equation to form a like system.
This is fear mongering disguised as concern. Tesla publishes data about incident rates for drivers both on and off autopilot and they are markedly lower than other drivers.

https://www.tesla.com/VehicleSafetyReport
https://www.mcmaster.com/ is fast. I've never been to Georgia, I don't live in the US, I don't even need hardware. But I still enjoy just clicking on random links and seeing a swift response.
Thanks for the suggestion! I added links to the source articles. For hiring trends, the only thing I could think of was tracking open job postings. Do you think that'd be useful?
Lathe of Heaven has to be one of my all-time favorite ANYTHING book.

When it was recommended to me, at first I thought it was a bad joke or something because the first few chapters were so "middle school-ish" in quality.

Towards the end I both wanted to find out what happened next and stop reading altogether because I didn't want the story to end.

The closest thing I found to the experience was the anime Space Dandy where the first few episodes were excruciatingly painful to watch in a "WTF is this crap?!?" disbelief sort of way ... only to progress very quickly to be one of the best entertainment experiences I can remember in a long time.
No, they have an arbitration clause, but you have the right to opt out.
It's almost as if calling it "autopilot" was wildly irresponsible.
The United States went to war when the Confederacy declared Independence.

The Peoples Republic of China will go to war when the Republic of China declares Independence.

What's so hard to understand?
PyWebIO: Retool for Python
Evidence they are doing anything like this? Or are they fixing the "actual" issue.
I don't see the link either, but I also do recall him releasing it for free.

You can find it on the Internet Archive:

https://archive.org/details/SheldonAxlerAuth.LinearAlgebraDo...
That's what the "kthreadd" kernel process is for.

Try this command:

ps axo pid,ppid,comm | less

The kernel-created processes will all have "kthreadd" as their Parent Process ID (PPID). Typically init and kthreadd are the only processes with a PPID of 0.
https://kim.com
Someone from zero cannot do a handstand in 30 days. Period. I think it's a cool goal, but you ain't doing in 30 days.
Ford's system has a lot more limitations. AFAIK, Tesla is the only company who has non-geo fenced FSD.
Would you be willing to provide examples of the types of works you are asking to be made libre/free? Or provide examples of how you are asking? It's tough to provide advice without knowing what / how you are asking. (No need to name anyone specifically.)

I saw from some other responses where you are coming from re: the principals of giving to the commons, and I do sympathize with that in general.

On the flip side, I hope you understand that there are many artists and programmers who are asked to work for free / "for exposure" on a daily basis. Exposure and the common good, unfortunately, does not pay the rent.

For many folks asking for their work to be given away freely is akin to saying "I feel your work is worthless". Or worse "I feel your work is worth something, but I / the world should be able to benefit from your work without you being compensated for providing me that benefit."

Even for folks sympathetic to free/libre principals, being able to give away one's work freely to the world is to be in a position of privilege, where they can work purely for principal of the common good because their own material needs are already being met. For many folks, that simply isn't the case.
Releasing software updates in normal is life-critical systems. Can't believe you are arguing differently.
https://racertrash.com/
Thomas. :)

Nobody I'm aware of has formalized the "generations" of MTAs, but they clearly exist.

There may have been a generation preceding them, but SMail and Sendmail are the first generation: highly featureful, no security design (they were often designed to simply shell out to pipelines to get things done!), with C foundations written --- I know this is hard for people in 2022 to grok --- before there was any common understanding of memory safety, not even overflows, let alone memory lifecycle issues like UAF. People forget that the first published stack overflow exploit (after the idiosyncratic Morris Worm) wasn't until 1995.

The next generation --- I'll call it the "second" generation --- improved both the performance (which was abysmal) and the security of the first; security was the motivation for them. qmail and Postfix are the big two designs here, and they share a bunch of architectural features.

And, my claim is, for like the last 10-15 years, nobody sane would have implemented an MTA in a memory-unsafe language (there's just no need), nor would they have used Unix Programming 101 techniques for storing data.

The UX of an MTA refers to how it's configured. As I wrote it, I thought maybe people would get hung up on that; after all, we'd refer to the "DX" of a development platform, so maybe I want to say "AX" for "admin experience". But then I thought, nah, that's silly.

The point of modern secure software designs is not to have the CVEs in the first place. Your operating assumption needs to be that your adversary knows about the "CVE" before you do.
Sorry but any suburb of a real city NYC Boston Miami Washington DC is just as unafordable or needle ridden as the city.
I’m pretty sure some things get normal algorithms, that not everything is a giant neural net.
What's the point of learning linear algebra without determinants? How else are you supposed to learn about eigenvectors?
Tesla never had lidar lol
Second Workshop on DRAM Security (DRAMSec), June 18 2022
Ford, like GM, has a literal camera monitoring the driver's face so they can see if they are paying attention. Seeing what your face is doing is a much more reliable system of measuring attention than whether or not the driver is touching the steering wheel while reading their book.
It's not so much the connection that's the problem.

You might have to agree to a ToS when you first connect to internet. Who knows what privacy you give away signing that.

The update might be a trojan horse containing both the bugfix you need and a new mandatory streaming service tile on the home screen.
Which is why they express relief at the prospect of the recall.
> typical software development.

So if a pharmacy swindles you out of your money or gives you fake drugs, I should reply 'that's just typical drug dealer'
But I'm still rejecting the premise. There's TONS of small startups and large companies that are building blockchain for verification purposes and centralized or known limited authorities. Many of them are showing pragmatic promise in supply chain verification etc. Certainly they're calling it blockchain. What they're not calling it is Crypto currency. Are we saying they're synonymous and there's no other use case?

I'm an outsider laughing at the whole Blockchain brouhaha, have zero horse in any race. I'm just amused endlessly how any given individual strongly believes their perspective is the only valid one and all others are simply "wrong", and heretics to the one true religion I mean bitcoin I mean blockchain I mean Crypto currency (Note how people are switching which one we are talking about in the thread. Due to various assumptions of equivalence ). Everything in this thread has firmed up my perspective.
I've always though those victorian clubs were pretty interesting, at least theyre portrayed in things like sherlock holmes, the old "adventure clubs" focused on exploring the world, north pole, antartica..etc
Anti-Interdiction Update: Six Month Retrospective (2020)
i assumed that until you can do a handstand with ease, the risk of injury is high.

the load on the shoulder joints in this position is very unfavourable.

millions of people run every day, of course there are injuries.
It's not even lazy, it's just plain gimmicky. Aside from the door being blocked in scenario, it would take longer to get your phone out, open the app and tap through the interface than it would to just get in the car and move it. It's just a toy feature with very few genuinely valuable uses.
Yeah, no.

You even so much as search for TOR on a search engine, you're on a list.

You go to their site, you're on another list.

You click the "download" part of the page, you're on another list.

You click "download", you're on another list.

You open up the package in your downloads folder, you're on another list.

You install the package contents, you're on another list.

You run it, you're on another list.

People who never gave much thought to who developed TOR and believe it offers "privacy" have got to be among some of the most naive tech users to exist.
The fraud aspect.
> The inability to have an honest and open discussion about the future of the NHS means it’s just going to continue lumbering on until it collapses

Agreed. Unfortunately, it often seems that "honest and open discussion" rapidly segues into rancour. The NHS is a behemoth, and healthcare can be astonishingly complex.

The NHS was designed for different times and different needs. It's been hacked about and is struggling to hang together. It's a political football, and it's been under-funded for years, probably decades. Cash isn't the only way to fix things, but it's a big part.
Somewhat related, anyway for Whatsapp gDrive backups to be restored to another account / phone#? I'm less afraid of Whatsapp ban since it's trival though still annoying to circumvent.
Autopilot is terrible in europe because of EU laws. Driver assist systems in the EU cannot impart more than 3 m/sec^2 of lateral acceleration[1], which means they're useless for many turns. Another restriction is that lane changes must be initiated by the driver and they must abort if the lane change has not succeeded after 5 seconds.[2]

1. See page 15 of https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELE...

2. See page 18 of the same document.
that isn't possible in bitcoin - there are no "obviously unspendable addresses"

like I said, the best you can do is burn the private keys, but that isn't verifiable - you can't prove something doesn't exist
https://randomghost.tumblr.com/
Lack of TV antenna input can be a good thing if you live in a country that collects extra taxes for having a TV, like Austria, Ireland or Poland, as your screen is not a TV by law. IMHO there isn't much value in TV channels nowadays anyway.
What if you control for demographic factors? I'd expect that new drivers and the elderly have accidents at a much higher rate than the average driver and also have low Tesla ownership rates.

Edit: I see they do have base rate w/o autopilot listed and it does significantly differ from national average.
Agreed. I enjoy Harris’ take, but it’s narrow and full of tunnel vision, and fails to engage in the slightest bit of charitable coverage. It’s more of a cartoonish depiction of Brand as a one-dimensional villain, rather than a fair appraisal of a human being with all the idiosyncratic fallibilities we’ve come to expect. Surely, he could find at least one good thing to say about Brand? Harris comes off as slightly tone deaf with this piece, as it lacks nuance and attention to historical dynamics.
Yep, it's jarring to see governments talk about carbon emissions and then ignore the potential emission savings by WFH.
"I encourage reading the actual report."

Wow. It seems like now on HN, this sort of turn-of-phrase has sadly become a boiler plate way to dismiss a host of comments. IE, what "actual report" are you referring to?? The headline article is about the investigation that has opened but not yet closed, as the linked text shows (it's a PDF but it's essentially a press release showing discoveries so far - why they've escalated. It's not closed and not friendly to Tesla).

"Accordingly, PE21-020 is upgraded to an Engineering Analysis to extend the existing crash analysis, evaluate additional data sets, perform vehicle evaluations, and to explore the degree to which Autopilot and associated
Tesla systems may exacerbate human factors or behavioral safety risks by undermining the effectiveness of the driver’s supervision"

https://static.nhtsa.gov/odi/inv/2022/INOA-EA22002-3184.PDF
> what concrete value comes from assigning fairly arbitrary effort estimates in this fashion?

This sounds counter-intuitive, but I’ve found in many teams the value of story pointing is to instigate healthy conversations about requirements and surface assumptions in a team that might be reticent to engage in those kinds of conversations naturally. The actual point values are probably the least important outcome - any inaccuracies tend to average out over time anyway.

I’ve gone in to many teams in my career where “planning” amounts to 1-liner tickets describing a month’s worth of work, and the team has a few dozen of these in the backlog. Conversations about what is actually involved in delivery don’t happen, and execution is chaotic because everyone has a different understanding about what we’re building.

This sounds like a dysfunctional team because it is. A surprising number of teams are dysfunctional, and many of these frameworks and tools come out of attempts to solve for dysfunction.

In these teams trust and morale tends to be low. The abstraction of story points (and associating them with complexity, not time) opens the door to having conversations about what the work actually is rather than how long everyone will take to do it.

It’s a lot easier to hear “why do you think this is a 5-pointer instead of a 3-pointer” instead of “why do you think this will take 5 weeks, I think it should only take 3.”

Scrum isn’t a universally-applicable tool, and introducing story points without also leveraging their ability to stimulate conversations about the work is a waste of time, but applied well they can help break through to teams that aren’t ready (or don’t have the muscle memory,) to have these conversations without some kind of trigger.
This reads like an appeal for more religious discrimination in science. Is that what you're saying?