skysight-inc/HackerNews huggingface dataset:
> My current proficiency level is pre-high school mathematics as I didn't pay much attention in high school, learning effectively nothing.

I took a look at your other comments and submissions, to try to get an idea of whether or not you are a programmer. The fact that you are on HN makes the odds pretty good that you are or were, but there are enough people here who are not that I didn't want to assume. It's relevant because programming requires thinking in ways that overlap a fair bit with the kind of thinking required in mathematics, so whether or not you are/were a programmer would affect my recommendations.

What I found puzzles me, particularly concerning your current "pre-high school" proficiency level. In a post a few days ago, you said that you are "graduating a university with a civil engineering degree in a few months" [1].

Most sources say that civil engineering requires calculus, differential equations, linear algebra, complex analysis, and probability and statistics.

I'm having trouble understanding how you could have gotten into a university civil engineering program in the first place if you math proficiency level is really just pre-high school, let alone got to within a few months of graduation.

Also in that post, you are asking a quite similar question to this one, except it is about CS fundamentals instead of about math from the ground up:

> Hi, I am a front-end developer since 2 years freelancing for local clients. A week back I fell in love with computer internals and now want to learn CS fundamentals and become a full time software engineer.

...

> Could you give me a roadmap for how I should go about learning CS fundamentals? What books and papers should I read? How did you learn, what step and approaches did you take?

I'm not normally suspicious of these types of questions...but something seems off here.

If the question is on the up and up, and you really do only have pre-high school math, take a look at ck12.org [2]. Go to one of their subjects on that page, such as algebra, and click it. On that page, click where it says "FlexBook Textbooks". That will take you to some freely available textbooks meant for K-12. Click where appropriate to get the high school ones. These should give you the high school math you are missing. I think you can also find on that site material for teachers, which could help for self-study.

Get this material down cold...it's not all that college level stuff is going to assume you know it well, so push through even if it sometimes is not a lot of fun. If you need something fun while going through the high school stuff, take a look at the books that collect Martin Gardner's old "Mathematical Games" columns from Scientific American.

[1] https://news.ycombinator.com/item?id=16506771

[2] https://www.ck12.org/student/
Yeah, I'm sure that mining boom had nothing to do with it...
>I've long suspected that Google...has a massive spaghetti code...problem

It’s worse, it’s cold congealed spaghetti. Warm spaghetti you can insert and remove noodles easily, but when it congeals, removing or inserting an individual noodle gets problematic. They can get away with this because they have a huge number of engineer brains that are used to locally heat the spaghetti.
Interesting, If it could be made inherently safe somehow this would be so much more efficient, but I just can't help the persistent image of Resident Evil "the lift scene" from entering my head.
There are 3 places left in Germany where they're allowed to operate. One of those places is Leica in Wetzlar. It's absolutely fun to ride it, much faster than conventional lifts, but it's understandable that they're being shut down for safety reasons.
it is implemented in android, iirc
The "drives with greater amplitude".
Resonance requires an amplification of amplitudes not just adding two waves. Otherwise, adding any signal between 90 and -90 degrees out of phase would constitute 'resonance'.
Wire application-level security audits
Link to the study: https://sci-hub.tw/https://academic.oup.com/aje/article/187/...
There's also How To Solve It by Polya. Small, accessible, casually written.
I like Zachtronics, but I really, really don't get how you view Minecraft as a ripoff of Infiniminer.

Infiniminer is a competitive class-based game in a constrained arena. The goal is to get a higher score than your opponents.

Minecraft is a survival game in an infinite world. The goal is to build a base and progress through a tech tree, or to build things for fun.

Ace of Spades is closer to being a ripoff of Infiniminer, though with more of a focus on combat. Minecraft is a game that has a similar (but more polished) aesthetic but with completely different rules.

Star Wars is not a ripoff of Star Trek just because they're both set in space. They're fundamentally different at every level.
I did a work experience placement at a UK hospital about twenty five years ago, and they had an operational paternoster lift.
It took about two days of regularly riding the thing before I plucked up the courage to ride it all the way over the top.
The comments aren't nearly as rich, but for biotech I like https://www.biospace.com/ and https://www.fiercebiotech.com/. Though they are typically day(s) behind https://endpts.com/. Twitter is big for biotech, too. People like https://twitter.com/BradLoncar, https://twitter.com/JohnCendpts, https://twitter.com/adamfeuerstein, https://twitter.com/CarolineYLChen, https://twitter.com/megtirrell, https://twitter.com/ldtimmerman, https://twitter.com/matthewherper covers a lot of it.
* Better use someone on a short fixed term job who will write a specification and a test suite (and penalities). Then subcontrat the development to some remote company and use the test suite to verify the compliancy of the deliverable with respect to the specification. You can as well use short fixed term jobs for the testing team.
How not to prospect on LinkedIn
I value the option to work remotely. It means I know I'll be working in an environment I'm already comfortable with as opposed to an environment that an employer thinks/hopes will make me comfortable. Also much less time, money and energy wasted on commuting to work and back.
Announcing Bitwise
Reddit is surprisingly bad for biotech. r/biotech is usually students asking how to get into biotech, and r/science doesn't allow news reports (non peer-reviewed things). So there isn't really "science news" kind of discussions; really quite disappointing. Would love to know of any people frequent that have rich commentary.
We use heat pumps for district heating in Drammen, Norway. Run this through your favourite translation engine to read all about it: http://www.energi.no/brakeroya-varmesentral-apnet
Early stage startups always entail challenging tasks and shares. You're trying to persuade senior developers to gamble on a couple of founders with no track record and an idea. You had better have a truly incredible idea! Care to share what that might be? Right here and now is an opportunity for you to demonstrate your superior management skills by utilizing HN to pitch to the best developers in the world. It's a free spin of the wheel, so why not try to hit the jackpot?
Data Hacking with python
Ask HN: Has anyone else found their handwriting skills have deteriotated?
Due to how often they use a computer now? Because while I admit I was never too good for calligraphy or what not, I definitely remember being able to use a pen or pencil for longer without feeling like my hand was about to fall off, as well as being able to have handwriting that a normal person could actually understand.

It makes me wonder (given how many people are used to keyboards and phone touch screens) how many of us could actually write a full letter or essay by hand anymore.

So does anyone else here feel like they've lost their ability to write on paper due to how often they use a computer?
What I don't like are the "solutions" they propose: noise? use earplugs, light? use curtains. Well I will not be able to sleep if I have something in my ears and if you pull the curtains then you can no longer wake up naturally with the Sun. How about changing your lifestyle so that you can have silence and dark during the night and light in the morning without any "devices". You might have to quit your job :)
Welcome to the club.

* The Myth of Sufficiently Smart Compiler (SSC)

* The Myth of Sufficiently Smart Virtual Machine (SSVM)

* The Myth of Sufficiently Smart Instruction Set Architecture (SSISA)

All these ideas have the same coal. How to preserve and use high-level information when transforming code to the lower level in a way that gives maximum performance.

In a hypothetical dreamland where where all these exist, compilers, hypervisors, virtual machine monitors, microkernels,operating systems, ISA's and microcode would generate "sufficiently smart" stack that provides performance increase.

http://wiki.c2.com/?SufficientlySmartCompiler

http://wiki.c2.com/?SufficientlySmartVirtualMachine
Malwarebytes 3.4.4.2398 Premium Crack Free Keys Here
Dimming of Tabby’s Star likely caused by something less sexy than aliens (2017)
Is dry cleaning the only alternative to washing with water?
What age is ok to start Minecraft with? Can you do couch coop with it? I have a steam link and some couch coop games but it doesn't work very well for my 5 and 7 year olds. (Steam link and steam conrollers are really finicky to set up, too). Should I just get a ps4 or xbox?

And how does minecraft compare to Lego Worlds? I've played Terraria in the past, but that seems too hard for that age - at least for kids who aren't really intrinsically interested in video games like mine. Maybe one day...

(Could probably google this, but I imagine there must be ppl here who have actual experience)
It seems like a study like this could have actually modified the light levels and measured the changes.
> I'm not normally suspicious of these types of questions...but something seems off here.

Really doesn't need to be off. Some shitty decisions on where to put attention in past and now probably in position where one can play catch-up with ambitions or just doesn't play well with authority and wants to conquer things with a more individualistic touch...

..or really any number of scenarios that can explain this not being "off" at all.
Dead simple Chrome extension for taking video snapshots – Snapshoter
Really, only 3? Because there’s two alone in Kiel (old city hall and the Landtag)
Go in a store, look at math books and find out one that looks like it:

* teaches you things you don't know

* relies on things you know for the most part

* do it well

You're in luck, a few years ago pedagogy in math was not really a thing. Now we have khanacademy and plenty of other courses (Coursera, Udemy, ...) and youtube videos to help you.

There are different goals when you're learning math. Do you just want to get more exposure? Then focus on youtube videos (subscribe to some math channels) and novel-type of books.

You want to get a deep understanding of some area in math like algebra or number theory? Then you're going to have to buy these books I told you about and do the exercises in them. If you've chosen your book well, they will have good explanations on how to solve these if you get stuck. In any case, exercising is the way to go.

For those who recommend a good teacher, I think this is only a good advice if you're just starting and too many concepts are scary to you, but if you're already have a good basis then good videos, online courses and text books are enough and even better than a teacher.
I once lost bitcoins in my Mt Gox account when I clicked on a dodgy popup while logged into my account.

This specific problem is easily mitigated. However, for most people who dabble in cryptocurrencies, they don't realize relying on security and setting defaults is just asking for trouble.
That’s how I got to grips with trigonometry... I tried to understand why sine, cosine, tangent, cotangent, secant and close can’t we’re named like they were... then I found a bunch of stuff on the unit circle. Never looked back!
The article mentions that it's a problem to ride the elevator past the top or bottom floor, but it is unclear why. I don't see why this should be an issue.
The real problem there was that Debian left the splash screen in place, complete with the email of the author. Thus people would contact him directly rather than Debian when an issue was noticed.

Then again JWZ is quite the character...
Yeah, I'm not sure what this one has over Cog, which is mature and well supported.

Of course it doesn't hurt to have more than one option... but Cog seems slightly nicer of the two at the moment.
Put another junk in the space!
An interactive ethereum address explorer
Red Queen hypothesis
Can't seem to find the last one on amazon.com. Do you have an author's name?
I found playing Minecraft with my 9yr old son a painful experience.. all he wants to do is get into creating mode and make stuff then grief it.
All I wanted to do was explore and battle against the odds with what I could make of it.

It was/is a disappointing experience.
Any chance of adding direct upload over a lightning cable instead of over WiFi? WiFi’s not working for me, though the same http server over WiFi function works fine to load music to VLC iOS. I even tried the Tiny Loader app on macOS but still times out. Thanks!
Are we sleeping enough?
So other people should change their jobs because you can't sleep with earplugs? Seems like a curious way to see the world.

Regarding light, if you want morning sunlight, motorized curtains with a timer are cheaper than moving.
I disagree with the general statement that leaning maths is "pitifully slow without a teacher". So long as one has structure (e.g. some kind of syllabus) and has access to google, then learning can proceed very efficiently indeed. In addition, by being able to work through difficulties independently you can "be your own master" so to speak, earning the confidence to solve new and difficult problems without assistance.

Having said that, I have come across people who have absolutely no apitutude for maths and definitely need a teacher. In a matsh class, there's usually one one set of people who kind of just "get it" straight away, and another set who struggle despite studying hard.

As you said, there are many roads to Rome, and the best road may or may not involve a teacher depending on the individual.
Think you're either gonna have to say something to your co-workers, who may be unaware they're doing this. Or that it's bothering you.

Or speak to your manager.

Or, accept this is the case and you don't want too, and help them with a positive attitude.
Hierarchical Imitation and Reinforcement Learning
I'm looking for recommendations for the same question, but for someone who did graduate Engineering and Econ, and does a lot of coding.

There's a lot of mathematical fundamentals they don't teach you while you're learning a whole variety of applied math.

Off the top the pieces we did:

- Linear Algebra

- Computation (big-O etc)

- Vector calculus

- Finite Element methods

- SDEs, PDEs

- Discrete math (graphs, cryptography, number theory, etc)

- Complex analysis (used a lot in EE)
I find there are things I’m missing. Does the precalculus stuff cover geometry and polynomials?
>PS: This has been reported to the ethereum foundation but they don’t consider it a valid vulnerability.

How are DNS rebinding attacks not a valid vulnerability?
> PS: This has been reported to the ethereum foundation but they don’t consider it a valid vulnerability.

This is ludicrous. If a torrent client considers this class of bug to be a vulnerability[1], I don't see why folks who are trying to revolutionise money (something that is far more important than a few small RCEs) don't. While it is true you need to run it with the --rpc option, I'm confused why the RPC is unauthenticated by default, and whether there is any front-end that will start up the RPC server in the background (similar to electrum).

[1]: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5702
Global Disinformation Index
Actually, they didn't touch the lights at all, they only measured the lights that people already were exposed to. They write that "an interventional method, such as a randomized controlled trial using a LAN exposure, is not possible because of ethical concerns".
The cabin becomes upside down as it loops around at the top or bottom, i.e, if some one fails to get out at the top floor, they will be tossed around as the the lift loops around to the bottom floor, so I guess.
No, no, the cabins keep their orientation. See the animation on the Wiki: https://en.wikipedia.org/wiki/Paternoster#/media/File:Patern...

Even in the care-free days of the early 20th century I don't think a device that would casually throw you around like that would be open to the public!
That one definitely confused me for far too long. If you've never read it, Mark Twain has an excellent little piece on German:

https://www.cs.utah.edu/~gback/awfgrmlg.html
The user chose to run an unauthenticated service on localhost. Anything on localhost (eg a browser) can access it without authentication.

The vulnerability is allowing the service to run without authentication.
Do you have any model numbers or suggestions as to where to buy this sort of stuff? I want to get (always wanted really) a dev server for home.
I have always found it odd that people seem to feel the need to personally like the creator of something.
You took out part of my comment and only commented on the part you took out. In my original statement I made that statement as a hypothetical and in a context supposing there isn’t a graviton particle. My desire was to communicate that for gravitons to fill their hypothesized role for gravity they must somehow transmit the gravity from a BH.
The commerce clause seems limitless in what it will allow.
MIT Open Courseware is great
Cryptogams and the NSA (fiction)(2013)
Similar situation here... one of the core Racket dev team members (i.e. PLT) works here, and we use HtDP in our one-semester Intro to CS (211) class. They specifically advertise it to those who have little to no past programming experience, with the only prereq being high school precalc; it's pretty rigorous and definitely covers a lot of stuff that my past programming textbooks didn't at all (e.g. recursion out the wazoo, abstraction). Here, it sets up for our 212 class, Intro to Software Systems, which is another semester class, all done in Java and about OOP. Seems like a mildly jarring switch if you ask me.

Even with my past experience, I still needed a ton of help from professors and other students. It's kinda daunting to think about doing it alone, without much help.
For nonprofits:
https://impct.io/

Built on lobste.rs, but needs more users to start submitting and commenting on stories.
Many disinfectants meant for cleaning brewing equipment contain it, you can order it from brewing equipment web shops.
Real Estate investing https://www.biggerpockets.com
I doubt that you wake up naturally with the Sun. Where I live the difference between Winter sunrise and Summer sunrise is about 6 hours. Most people keep more regular hours throughout the year.
Ask HN: What laptop should I buy with a budget of 2K or less?
I'd like to be able to repair the laptop myself, at least to some extent. I'd like to be able to add at least 32GB of RAM later, so I'd need slots for that. No more than 15in monitor and I'd like to keep it for at least 5 years. Would be nice if it isn't too heavy, but that is secondary. Needs to work with Linux. Will be doing CPU intensive work.

I'd like to spend no more than 2,500 ideally 2,000.

Any recommendations?
No doubt about it!
The article actually states that dithering is a different but related technique.
Careers page is password protected?
That was it.
He didn't say that other people should change their jobs for him. He said they should change their jobs instead of having to sleep with earplugs or curtains. But I think he fails to realise that many people live in very different environments to him.
China's Xi Wins Constitutional Backing for New Strongman Era
Are you sure about that number? The WSJ said in 2015 that Germany had 231 left.
Node.js, DynamoDB, and AWS Step Functions to collect sentimented movie reviews
A fast-food chain is using a burger-flipping robot
puts on tinfoil hat

We are convinced we are not productive - to the point we aren't recognizing when we are accomplishing more than 10, 15, 20 years ago.
However if you open a static HTML website such as the tasteful http://motherfuckingwebsite.com/ it still shows 122 MB used in Chrome Task Manager in spite of the source being 0.005 MB.
The one I know has several signs on the exposed inside walls above the topmost floor all assuring you that you will not be turned upside down, or folded, or run through a meat grinder.

Based on the adage that every (non-)warning sign is there for a reason, I can only assume that there have been incidents of people panicking after they realized they had gone to far.

Just to be clear: it’s absolutely safe to go around. Any other stories you may hear are the inside joke of those five beaurocrats on the top floor enjoying their tiny fiefdom of chaos.

Edit: could people downvoting this please give a reason? I’m really not complaining, just terribly curious what could possibly stroke people the wrong way in this benign post. Or is this the Paternoster conspiracy coordinating to keep their secret?
>Half an hour with a good teacher can save you weeks of table head-butting.

That says more about the poor quality (or bad fit) of the book/video/material than it says about the skill of the teacher.

I guess online courses where students can post comments and talk to each other partially address this. These comments may help point out the parts that the material failed to convey properly (and in an ideal world, such feedback would then be incorporated into the next revision of the material).
Missed an opportunity for a juicy pun there
More than the quality of my handwriting, I find that my ability to write for longer periods has diminished. When I was a kid, we used to hand write 3 hour exams without breaking a sweat. Now I can write continuously for maybe 15 mins before having to stop. Kinda sucks.
Historically, Emscripten produces pretty large binaries, but that's because it's also trying to make transitioning from desktop code to the web easy; therefore it includes a bunch of its own runtime.

They've been doing a lot of work to cut it down lately. As wasm grows, and this becomes more of a focus, it should get really small.

On the other hand, LLVM's new backend means you can skip that runtime and get very tiny binaries; the smallest file I've gotten rustc to produce when compiling to wasm is just over 100 bytes.
Is Silicon Valley really over?
GitHub-drama – a curated collection of “dramatic” GitHub interactions
The ability to communicate with anyone around the world within seconds surely helped in getting things done. I don’t know if it created even more tasks, but I would rather have this ability than not.
In what way, can you specify?
Automatic tab discarding is very aggressive on mobile installations compared to desktop. They used to let you enable that feature in the desktop browser if you like having tabs that reload when you switch back to them - no idea if they do in the current builds
They talked about how "mistakes" in the tuning often resulted in exploding cubes. I have a feeling they probably tried that or something like it but it just puts too much stress on the cube.
What do you mean by "task"? It has never been easier (and cheaper) to write fault-tolerant software and deploy it on a global scale to thousands or millions of users.

Or do you mean things like shopping and cleaning?
It is possible to ride the elevator all the way round, the cars don't flip or anything like that.

But if you jostle the car while it's going around the top or bottom, there's a risk of jamming the mechanism.