skysight-inc/HackerNews huggingface dataset:
Ask HN: Are there any codewars like math resources
Maybe some background could help someone steer me in the right direction.

I used to like math. Things happened (war in my country namely) and I went through school with huge gaps in math knowledge. I’m 43, with 20y programming experience (self thought for the most part).

I tried Khan Academy but I’m having trouble knowing where to start, which path to take.

I’m imagining a resource similar to codewars [1] where problems are given, maybe hints for solving them (like tags with math topics) and grouped by difficulty and pre-required knowledge. I’d find a problem, do research (khan, google...) come up with solution that would be automatically tested. I could see other people’s solutions and discussion about them.

[1] https://www.codewars.com/
We've installed an ad-blocker and PrivacyBadger, and have remove administrative privileges for most older members of the family. All have been instructed in how to disable those two add-ons when there's a need for it.

So far, there's been no major incidents, as the ad-blocker filters out most of the crap on-line, and the lack of administrative privileges prevent the less knowable users from doing something dangerous.
Show HN: Remote Circle – Remote Jobs in Your Timezone
Can the NYT apply their insights to how they deal with the "fine people hoax"?
SEO Course for Beginners: Boost Your Website’s Visibility with Perfect SEO
Talinkg to a computer is an interface like any other (mouse/keyboard).
There's no fundamental reason why talking to a computer would be inherently privacy invading, it just happens that most implementations today are, for technical/performance reasons.
I've been using ledger (the original one) for the last couple of months, and I'm loving it. I'm way into the whole plain text accounting thing.

I guess it's the most obvious question in the world, but: what are the big reasons I should switch to hledger? What do you see as the primary advantages of hledger over ledger?
i don’t think it would tbh... the US already places limitations on free speech: you’re not allowed to advertise using false information, the “fire in a crowded place” type thing

you might SAY that it’s a slippery slope but i’d argue that it’s likely (not that i know for certain) that there would have been just as much angst about these limits that are not only seen as common sense these days, but necessary
"If it was that simple then I find it strange that these brokers don't offer free starter accounts to new users to compete against Robinhood. They must know something we don't about the real value of the company and how much competition they're adding."

Or it just may be an example of how changes don't happen instantly. If they lose enough customers, they may cut commissions, even to zero. As long as it isn't a big problem, they won't.

It seems to me that a lot of brokers are providing an increasing number of commission-free securities, and you also see promotional deals where a new account of sufficient size gets several hundred free trades.
Also related: The new guidelines on vitamin D – what you need to know (2016)

https://www.nhs.uk/news/food-and-diet/the-new-guidelines-on-...
In my experience automatic updates aren't great. If you're updating manually, you'll be in a much better position to handle problems when they arise, and more importantly these problems won't sneak up on you when you need your system the most, because you won't update unless you can afford the risk at that time.
Just going by pure math conjecture it's unlikely there is intelligent life remotely similar to us in our galaxy. Supposing it takes ten thousand years for a technological civilization to double the number of planets it occupies. In that case it will fill the galaxy in less than a million years, so for two species to meet before one dies out or prevents the other from evolving they have to arise within the same million year period. In a galaxy over thirteen billion years old that's quite unlikely.
I am amazed at how efficient rats are. I put a garbage bag in my shed and 3 days later the only thing that was left was the plastic.

The government in their infinite wisdom hatched out a scheme were everyone has to pay per kilogram of produced waste so a lot of people were just dumping their trash.
It was a 24/7 buffet for rats. Then, as only a country that has literally too much money can do, they sent out inspectors on to the streets to sift through the bags and fine people.
ipad keyboard is just as weird as the macbook keyboard but in different ways(the layout for example)

ive's design group just hates standard keyboard design i guess
Thanks for this. A few questions comes to mind:

1. What was the motivation to create this instead of extending ledger?

2. How to track time?
I think both, there is a point where increases in the ease of doing something signifies a categorical change in the activity, and since the algorithm is meant to drive engagement without thought to harm to Facebook's benefit people may think that they have some sort of responsibility to reconsider that algorithm, and mitigate the harm.
> What percentage of Scrum teams do you believe are "properly cross-functional and self-organizing"?

About the same percentage as that of “Agile” software development shops that put people and interactions above processes and tools.

OTOH, at any place that is considering implementing either, there are decision makers who can influence (or in the case of Scrum more than Agile, authoritatively direct) whether or not that's the case, so for them, at least, it's worth distinguishing between problems with Scrum as prescribed and problems which often occur because decision-makers decided to ignore key parts of Scrum-as-prescribed.
I'm not aware of any connotation of "matter-of-fact" meaning "rude".
How does that make sense? What about all of the people that have moved to SF in the last few years? Did they come because hey thought there was availability?

If availability was a major factor in where people wanted to live, Detroit wouldn’t be half empty.

Now if the increase in high end housing makes housing across the board cheaper, then yes, it makes a lot of sense that more people would want to come. Because the plan worked and housing got cheaper.
You are confusing between useful systems vs explainable systems vs understandable systems. All models, 1:1 or not are useful in some sense. You might also be able to explain some event or behaviour of the system using a model. However, understanding requires building abstractions graph that can allow an arbitrary chain of reasoning and inference. As system becomes complex, such abstraction graph might result in similar complexity resulting in inability of a human to store in memory and execute inference/reasoning over it.
World's rivers 'awash with dangerous levels of antibiotics'
That's a solved problem: git.
Many Are Concerned About 5G and What It Will Do to Us
Not to mention that Techcrunch is far from being the best source in relation to hardware...
2 more things"

- in what ungodly scenario would a consumer need 1gbps speed on their desktop, let alone on their phone. I consider myself a power internet user (I own an ISP), and even I can't think of many scenarios where I would need more than 50 Mbps of internet speed for a sustained period of time.

- On mobile devices, higher speed will almost surely result in higher power usage. When consumers are asking for longer battery life on their phone - does 5g theoretical speed really gives that, much advantage over a 4g phone? I can't think of any situation where it does.

In conclusion, 5g advantage is nothing more than to stimulate tech industry component sells to consumers and business, ie, 5g modems, phones, antennas, license fees for goverments, exporting tech stack to other countries. All these scenarios adds up to a huge financial market. The first country/company to be in this market will benefit from it. Thats whats its all about. I am not worried about snooping - the telcos and ISPs are already inside government's pocket for decades now under eecutive order (I am not only talking about USA here).
Existing 300 and 400 series boards may be able to operate at PCIe 4 speed for the CPU-provided lanes (as opposed to the ones routed through the chipset that you can't upgrade), however signal integrity issues may limit this to just the slot closest to the CPU. So far, I haven't heard about any particular boards that have been validated for a specific number of slots working at gen4 speeds. Whatever you're using for an SSD RAID array will probably get in the way of using gen4 speeds, since you likely won't be able to get gen4 speeds over any cables or risers without redriver chips.
"I can't think of any mechanism by which wealth owned by the rich (i.e. old) can skip a generation."

The IRS can!

See:
https://en.wikipedia.org/wiki/Generation-skipping_transfer_t...
Holdt's propensity for fabrication is well known. To the extent that that he was once featured on a Danish site reminiscent of The Onion - about how he accompanied Apollo 11 to the Moon, but arrived late for take-off and had to cling to the ascending Saturn V. On arrival, he found only sad and disenfranchised nazis there.
Nope. 6T's low light performance is on par with the Pixel 3's, and Apple's gen equivalent of the Xs doesn't seem to perform as well, and the S9 also had slightly worse night performance.

The only way people can beat the 6T and Pixel 3's camera is with the newer phones: the 7 Pro, S10, Honor 20, Mi 9, the Pixel 4 (when it finally comes out) all use the same sensor: the Sony IMX586.

You may be just simply stating you don't like the 6T's camera app... it does low light differently. Not worse, but different, and in my opinion, more accurately. People have put a copy of Google Camera on their 6Ts and enabled the Pixel 3 low light mode (it's entirely in software and not a function of the hardware; change a prop, and any phone gets the Pixel 3 enhancements), and the 6T either performed essentially identically, or slightly better.
I hope it includes a horde of running zombies.
Reasonable is simply acting in line with whatever mythology your society has adopted. It's reasonable to kill people for insulting a sacred man (an act of passion) while elsewhere it's considered a right to do so (another act of passion). We "reason" using the cultural norms, and those norms are anything but actually norms, they are mythologies that makes societies function. You can not reason outside the cultural norms, like for instance you can't reason within Nazi cultural norms in modern Germany. It's impossible. Reasoning is simply a method to socialize with people with whatever cockamamie idea they currently consider a norm.

Outside of that in certain other domains we have the ability to reason like for instance in engineering or programming, and there is no way to avoid reasoning about these things as they have very specific truth conditions... that are persistent and inescapable.
ESXi 6.7 on the 2018 Mac Mini
if someone ever figures out the meaning of that phrase it's probably going to summon some cosmic horror that will be the end of us all
What was the cumulative size of those dependencies when statically linked? I've never understood why some shy away from "number of dependencies" per-se for C projects, worst case you ship some of them with you, but perhaps the real problem was "prohibitively large object" once it was all compiled together.
No disrespect taken!

I think you may be intuitively underestimating the size of the US. I live in Arkansas, which is a fairly mid-sized state. Driving across it at highway speed (70mph/115kph) E/W or N/S takes about four hours. It’s slightly larger than England in area.

Consider someone who lives in Austin, TX. They could drive four hours in any direction and still be in Texas. The US as a whole is approximately the size of all of Europe.

Given that kind of scale, it seems illogical to say that many Americans have “never experienced a temperature outside of their own” merely because we tend to not travel internationally as often as others.

As for comfort zones - I think that’s something of a funny thing. I’ve been to Montreal a couple of times, and honestly felt more at ease there than when visiting New York City, Los Angeles, or Hawaii. There is a huge amount of diversity in terms of culture within the United States.

The other big factor is expense. My wife and I plan to visit Scotland and Italy at some point. We estimated that a week in Scotland for the two of us would cost about $7,000 - $5,000 of which is airfare alone! Consider that the median household income in the US is about $60,000 ($50,000 after federal income taxes). That week in Scotland is approximately the equivalent of two months’ income for a median household! In comparison, a round-trip flight from Heathrow to Istanbul is $330. It’s much, much cheaper for Europeans to travel internationally.
Several books on this precise topic, The 10% Entrepreneur is one of the best, full of useful info and practical examples.
https://www.amazon.co.uk/dp/B01AXE98UA/ref=dp-kindle-redirec...
It’s called bootstrapping, there is a lot of reading available and even some success stories to help you keep yourself motivated.
There's certainly environments where that makes a lot of sense, particularly where the software at issue had immediate effects on external users who require advance notice of changes (I actually work in that kind of environment, and though we do have opportunistic items they generally are restricted to items that don't impact external users.)
Even when you fight that annoyance with a content blocker, the page itself is aggressive to no end.

I scrolled down to see how long the article is. That somehow also triggered a redirect to the root.

How is it possible that the most user hostile news sites often get the most visibility? Even here on HN which is so user friendly. What are the mechanics behind this?

The url should be changed to a more user friendly news source. How about one of these?

https://liliputing.com/2019/05/arm-launches-cortex-a77-cpu-m...

https://hexus.net/tech/news/cpu/130757-arm-releases-cortex-a...

https://www.xda-developers.com/arm-cortex-a77-cpu-announceme...

https://www.theregister.co.uk/2019/05/27/arm_cortex_a77/

https://venturebeat.com/2019/05/26/arm-reveals-new-cpu-gpu-a...
I understand most of my comments on this threat have been battling, but in most other threads I actually do want to spike up discussion. How should I proceed in approaching that?

I'm also not trying to incite battle with my mostly conservative views, I feel it shouldn't be an echo chamber for every article.
I think that longer term strategic planning is missing from the Agile Scrum manifesto.

Agree with the Software development priority queue part being good thing.

Long term planning was in the waterfall process which does not work that great either since it tends to over focus on planning.

How do you find a good balance between Agile and Waterfall?

I think it can also be different what process works well if you are a startup and need to deliver a MVP minimum viable product as soon as possible. Compared a bit to if you are a long term enterprise company and need to maintain your code base over time. Ie dealing with technical debt from short term solutions vs long term stable.
I keep on saying this about the sociology research. They keep on using single variables to track complex systems and they end up failing. All of the lazy social justice fields end up causing immense damage.
React SSR with Next.js 1. Concept of Server Side Rendering and Basics of Routing
Most Flight simulators or any physics heavy game gains a lot from single-threaded performance
This is why I never work in a technical capacity where I am being 'managed' by lawyers and other non-technically competent means of business org.

I truly do believe, as do you, that the TOS and Warranty world is another desperate subject from where the execs/lawyers/owners of the company desire to eek every penny.

There are many other realms where the TOS is simply: use the thing, have fun with it, if you want to tell us about yourself, press this button/fill in this card. For sure, consumers 'never read the TOS', because - hopefully - the device is now set up, everything works, it is time to rock ..

For sure, tech can be used against the user. But it can also work for the user, too.
When I put together my computer a year or two ago, I just added some cheap $40 radeon board. It really didn't impact the bottom line much.
TLDR: The huge bill was a result of an improper way the application was coded. They contacted Google/Firebase who were gracious enough to waive off the bill.
IndieHackers perhaps: https://www.indiehackers.com
> My (related) experience has led me to believe reporting to management should be strictly separate from any tools or processes used to track actual work,

This probably increases the accuracy of the work trackers but increases the B.S. level of management reporting in organizations where there are fundamental problems between management and the working level.(Which is the only reason anyone would want to separate these two things.)

While this probably seems like an improvement from the working level, it's probably bad for the organization. The solution is not dis-integrating communication tools so that management's view is not connected to the actual work tracking, but dealing with the fundamental trust issues. Which is hard, of course, but things that are important often are.
India’s Growing Regional Language User Base Driving Up Investments in OTT Space
Re 1: put yourself first when it comes to careers. As long as you are putting in the required number of hours (physically and mentally) at your employer, there's nothing wrong with spending your free time on your own projects.
Show HN: Highlight – Highlight messages on your website using Google Sheets
That's very clever, and reminds me of DVD (Digital Video Disc to Digital Versatile Disc)
Ask HN: Sharing equity with cofounders while I fund it 100%
I have a startup, three years running now. We have started to generate some revenue to survive and bear the operational cost.

When the revenue wasn't here - I have invested in it 100% money. I have put in so far around half million USD.

It's about time I share some equity with my cofounders who are only contributing the human resource. One of them is technical and another looks after managerial aspects.

My technical cofounder works around 14 hours a day while the cofounder manager works office hours.

Please share you advice on how should I split and share the equity so that they feel valued and respected.
Haven't tried it myself but it looks pretty straight forward: https://www.gnu.org/software/guile/docs/guile-tut/tutorial.h...

I'm coming round to the suckless philosophy personally though.
No, the Apple was expensive, and you still had to wire up this cheap junk to get a working clock.

He's literally taking the piss out of Apple, because it was expensive even then.
I believe in the comment you’re replying to, “the market” is actually referring to the Android Market, the original name of the Google Play Store, rather than the economic market of serviceable users.
$39:

https://www.newegg.com/visiontek-radeon-5450-900860/p/N82E16...

Hardly the latest technology but you can plug a monitor into it.
Show HN: Star-history – The missing star history graph of GitHub repos
Earlier this year, Google introduced an Android "Live Transcribe" feature that runs locally without the need for an internet connection:

https://www.theverge.com/2019/2/4/18209546/google-live-trans...
> On the other hand, for horizontal distance, metres (or yards) make more sense than feet. To the extent that when American tell me how far away something is in feet, I just multiply by three before trying to use the info.

Wouldn’t you divide (rather than multiply) by three to get the distance in yards, which would be closer to meters?
Fossil Free Funds
For the most elderly, tech is dark magic. They simply don't want to understand and reject the idea of using it. If they are forced to use it to survive in this modern world, they really need to have the protection of our generation. It is sad but true. We all have parents, we all want them to understand but they simply don't want to.
> Still illegal as per the First Amendment. The government cannot compel speech, regardless of company size.

The United States Government can't; however, the U.S. tends to have stronger free-speech laws than other countries, and as we've seen with GDPR, other governments (including some democratic governments) may choose to legislate additional restrictions that Facebook might end up just deploying everywhere. Not saying that this would necessarily be a good outcome.
Automatic enhancements when taking a photo / video (digital zoom, anti shake, "night mode") for example.
Is there any clarity on how much RAM the 3900X supports? Presumably can do 4x32GB, which would make for a great little bioinformatics workstation. Am very excited with this chip and Windows bringing the full Linux kernel - can do everything I want at home with just one fairly cheap PC and no dual booting. Good times!
The proper answer to losing the technological race for hardware development is to accelerate your own.

But instead the US government are doing their best to hobble China.
WE are heavy users of AWS. SQS is the only service where we have had zero downtime. The only downside we have about SQS is you can pull out only 10 messages at a time (without batching). You can have parallel readers but they result in some duplicates. There is SQS FIFO but it is throttled.
Looks very interesting. Have some feedback though:

* I couldn't identify what license the code snippets are shared under. Could you add an option of license selection when a person posts? (Default could be GPL)

* The links for 'Privacy Policy - Cookies - Contact' are only available on the Home page, not when I am browsing the snippets.

- Sur
>But one issue with current AMD cpu is that you have to buy a desktop GPU even when you are not doing any kind of gaming and such.

AMD just aren't selling many CPUs to business desktop system integrators, partly due to dubious tactics by Intel to keep them out of the market. If you sell most of your CPUs to enthusiasts, it just doesn't make sense to squander die area on a crappy iGPU. Gamers obviously want a fast GPU, but so do most creative professionals - Photoshop is heavily GPU accelerated, as is Premiere and Resolve, not to mention essentially all 3D modelling and CAD packages. Scientific computing is also rapidly moving towards the GPU. GPU performance has a surprisingly large impact on day-to-day responsiveness, because all the major browsers use GPU compositing.

The market for fast chips with crappy iGPUs just isn't as big as it used to be, nor is it particularly accessible to AMD. The Athlon and Ryzen APUs make a great deal of sense for the current market, offering a good balance of performance between CPU and GPU. I expect to see 6 and 8 core Ryzen chips with Vega GPU cores as part of the Ryzen 3000 generation, which will further close the gap.
What even is an "AI chip"? What's the difference to a GPU? As long as nobody can explain that I have big doubts that it whould be more than a GPU+marketing. So no big deal if they don't provide one.
> never experienced a temperature outside of their own

What does that even mean? You can experience temperatures ranging from 0°F to 100°F within six months in New York City. Why would you need to travel to experience different temperatures?