skysight-inc/HackerNews huggingface dataset:
Taylor series explanation: (simpler)

p irrational:

z^p = a1 z +a2 z^2+... =

= a1 k1+a2 k2 +...

but there is 1 extra z'!=z which has the same value k1 for z'^2 as a solution z of z^2, 2 extra z' which have the same value k2 for z'^3 and so on. As long as mdc(a,b) is 1, for distinct a and b, z^b and z^b won't share all z' alternatives. You can then choose prime numbers s.t. you get infinitely amount of distinct solutions.

Exponential expanation: (more intuitive)

So we're taking roots of complex numbers: all z s.t. z^p=exp(a+jb). Without loss of generality, take
z^p=exp(jb) instead, since exp(a) is just a positive constant. A trivial solution for that is simply exp(jb/p). But remember that for any x, exp(jx) = exp(jx+2 k pi) for integer k. For example, exp(jpi/6) can be written either as that or exp(j 13 pi/6) -- that's because exp(jx) is a sum of periodic components cos(x) and j*sin(x). So we can add new solutions of the form exp(j(b+2 k pi)/p), for any k, which may or may not overlap with previous solutions. But if 1/p=m/n (rational), you can set k=n to get back to exp(jb/p+2 pi)=exp(jb/p); otherwise, you get infinitely many solutions, since there is no k/p=integer. However, you can arbitrarily close by an approximation p~m'/n'; in fact, you get arbitrarily close to any other rational exponent exp(jq), so that the solutions are scattered everywhere.
I need a user friendly and easy to add live chat application for my website
I need that live chat application to provide online customer support and to analyze performance of my website.
You cherry-picked a bunch of old quotes from last year that don't accurately represent any of the people quoted.

"It’s a great time to be an iOS developer." Marco Arment, June 6, 2014
Given our limited sample size, I wouldn't read too much into exactly how many writes each drive handled. The more important takeaway is that all of the SSDs, including the 840 Series, performed flawlessly through hundreds of terabytes. A typical consumer won't write anything close to that much data over the useful life of a drive.
I found the search function sorta hard to discover. Can you make it more prominent? I think it's great that you can build your own playlist. BTW is the custom playlist saved next time I open Chrome?
There should be a cap on the maximum number of points that can be earned per submission. Karma scoring will never be perfect, but the current reward for being the first to submit a popular story is excessive. Being the first to click submit on an obviously popular story can earn more points in a day than a patient user who spends years writing thoughtful expert answers in low-traffic threads.
Infrastructure with Python
I'm puzzled that anyone at Squarespace would feel entitled to criticize iOS 7. In my considerable experience using Squarespace, never have I found more than a handful of its features clear and DWIM-ish.
75Gb per second DDoS attack from China
Yeah, that's a crazy-low budget amount. I've done entirely pro bono web projects that've still had a higher base budget than $300 (domain name, web hosting, software licenses, etc).
A Rare Peek Inside Amazon’s Massive Wish-Fulfilling Machine
I think this says something about the places where we live.
The development kits for the PSoC 5 (not the chips themselves) are $99 [1], but there's a lot more on those boards than on these.

[1] http://www.cypress.com/?rID=51577
I have seen plenty of cases that are really that clear cut, usually centered around item quality. For example, cheap tools vs. expensive ones. The "X Factor" that makes the more expensive item not strictly better is the question of use. I.E., I don't buy Snapon wrenches because I am not a professional mechanic, but neither do I buy cheapo pot-metal tools because I use them enough that the extra money spent on quality is well worth it.
Hey, I live in Redwood Shores, what company are you interning for?
Imagining a Better Facebook (Feb 2014)
Sorry for being negative, but how is this innovative? Won't an existing security guard service be able to provide the same service, assuming they have a website booking form?
It is indeed a great time to be an iOS developer. I love Swift, technologies such as Scene Kit and so on. But that doesn't mean iOS doesn't have some real usability problems. Some of them are documented here: http://uxcritique.tumblr.com/
> Actually its response time.

Actually, no, it isn't.
I think you're reading too much into the "spirit" of an invention. A patent claim has very specific instruction to follow to satisfy the condition. If it's too vague, it would be struck down. People have been reading more broadly into patent than necessary and worry unnecessarily.

Like in the example above, the word "comprise" has very specific legal meaning - to be all of it, no more no less. Having 1 parameter or more than 2 parameters would not fit the claim description. You would see the word used again and again in patents. It's like the word "concurrent" in CS. Programmers just understand its meaning and the connotation of it.

Most of patents are BS anyway. You just need to learn to defeat it in its own game.
"The inmates are running the asylum" - 8 hours a day 5 days a week

A colleague (from the PM office) comes in in the morning and says to my hard working co-worker (working since 7 everyday, 10 hours a day, wanting to make a career): "You look so down, what happened?"

He was just working. He didn't say "Hello" or "Good morning". Out of total lack of empathy (it seems) he was totally fully convinced that this was appropriate (I questioned him)

Our business has really hard constraints

Nobody outside of it can fully grasp it

I AM NOT SURE if therapy can help
The author forgot that one of the impetus for Silicon Valley becoming what it is in an influx of government money.
Can anyone enlighten me to the difference between Clojure-like immutability and Object.freeze()?
"Can you tell us what you’re scared of?"
Comments from people asking for or offering mirrors of inaccessible articles are very frequent. Old articles disappear from the web, leaving discussions that lack context. HN should offer a link to a cached version in the header of the item page.

While it would be easiest to use an external service and just add the link, I think HN should consider creating its own archive of all submitted articles. The articles, links, commentary, and voting data could one day be a great corpus for future scholars (and current-day CS researchers).
> trained for combat

That was my point. Combat training in a military environment is not what you want on most civilian "bouncer" jobs. I'd imagine, anyways.
Or, slightly below that: WYLABOCTGWTR = Would you like a bowl of cream to go with that remark?

Seriously, though, I think most of this list was drawn from a common source. Doing a Google search for a few of the acronyms in conjunction yields a bunch of very similar lists.
Jaron Lanier Wins German Book Trade’s Peace Prize
Management Hacker Gary Hamel Interviews Loomio
Regarding infinite states, let's assume infinite storage capacity and a time step approaching 0 (in the limit sense:. It's not science, it's math.

Regarding science, the point is not knowing. Science isn't just answers, it's a process for finding new questions to answer. Something could always come along that radically changes our understanding of some aspect of the universe, but that doesn't necessarily mean what we knew before was wrong, just incomplete. If an old theory explains everything measured up to a point, the old theory is still "right" within the context of those measurements. A new measurement that invalidates the theory doesn't invalidate the previous measurements in almost every case.

It's also important to distinguish between math and science. Mathematicians can make definite claims to correctness because they study "universes" of their own creation. Science only claims correctness in light of current knowledge, within certain error bars. Ignore sociology.
How terribly disappointing.

If you're going to get all nostalgic about running Amiga applications then you may as well just go and download the original kickstart and workbench ROMs and fire up an emulator. FS-UAE(1) works pretty well. Someone even wrote a PNaCl emulator for Chrome.

[1] http://fs-uae.net
> Just a guess... you were born before 1982, right?

Nope; I'm in my 20s, not 30s.

> And sure, 80% of his output aren't going to match your quality filter. But the remaining 20% will.

Quantity has a quality all its own, but no, even 20% seems unlikely.

> And, if nothing else, he's a cultural influence.

Which brings me back to "What makes me really sad".

> Turn off your brain

No. I'm not a fan of "mindless" entertainment when there's so much that I don't have to turn off my brain to enjoy.
"Comprises" is a term that has a specific usage in patents. Comprises means that at least all of the listed elements must exist but other elements that are not mentioned in the claim may also be present.

The alternative phrase is "consists of" which means that only the listed elements may be present. I think it's mostly used when claiming chemical or molecular formulas.
Well, I guess you can say LinkedIn is not a success (and with a PE of almost 1000 I like to be indignant-on-the-Internet, too). But if you ask most startup founders if they'd feel getting to LinkedIn position is a success, I think you'd get a resounding, unanimous, yes.

Ditto for reddit. Not sure how well the RapGenius people have made out but it seems they're doing well.

Remember, being a viable business is different than being successful. Twitter hasn't turned a profit, but the people that started it made off quite well. Splunk still loses cash left-and-right, yet is considered solid.

If I came up with a money-losing idea that got millions of users, never made a dime, and I sold it for even $10M, I'd be very happy with my "failure".
Lots of psychologist out there. could you tell me about introvert & how do we overcome the introvert.
Am I crazy for being pretty sure the NSA is gaslighting me?
Keyword Tool – Get 750 Google Keyword Suggestions for Free
Keyword tool for SEO and Content Generation
+1 for open access!
There are a ton of potential improvements that can be made when you bring tech to a traditionally low-tech space. Online booking is just one of the more immediately visible improvements. Other obvious ones may include:

- Intelligent routing

- Better provider sourcing and screening

- Improvements in ongoing quality control

- Better payment systems on both the client and provider
side

- Reporting and other intelligence

That's just to mention a few. Collectively these improvements can amount to a much better customer experience, lower prices, or both. Uber isn't just a taxi calling form rendered on a mobile device.
England vs. Italy 1-2 All Goals and Highlights (World Cup 2014) HD 
England vs Italy 1-2 All Goals & Highlights (World Cup 2014) HD
England vs Italy 1-2 All Goals & Highlights (World Cup 2014) HD
What Apple Should Learn From Tesla's Patents
Windows is par for the course. If you want to develop for FPGAs, I suggest you accept Windows, at least to start with.

Xilinx can run on Linux and all that, but Windows is the path of least resistance, and FPGAs will give you enough trouble by themselves!
CRITs: Collaborative Research Into Threats
Due to the overwhelming response tonight and your feedback, prices have changed. I look forward to addressing more of your feedback in the near future.
CNN Ignoring "Up to 275 Military Personnel to Iraq"
I know this kind of world-news content is usually outside the scope of HN, but I was hoping we could turn this into a meta-discussion of how ridiculous CNN really is. Over six hours ago, Obama announced that he would be deploying "up to 275 military personnel to Iraq." By all accounts, this should be breaking news, especially when it directly contradicts his statement from two days ago that he would not be putting "boots on the ground."

Multiple mainstream news outlets, including BBC [1], Reuters [2], The Guardian [3], and even Fox News [4] are featuring this story as frontpage, breaking news. And yet, on CNN, the story is nowhere to be found on the front page, neither in the U.S. edition [5] nor the International edition [6].

Does anyone else appreciate the absurdity of this? To me, it's a prime example of how mainstream media outlets like CNN, relied upon by many in the U.S., are no more than a mouthpiece -- or a muzzle -- for the administration. I have no doubt that CNN is withholding this story at the request of the White House, where I'm sure many bureaucrats are hoping they can tide over the mainstream American sheeple with stories of Tornadoes and Bush-bashing.

Millions of Americans rely on CNN as a source of their news. Is it any wonder that so many Americans are ill informed or lacking any substantial opinions of their own?

[1] http://www.bbc.com/news/world-middle-east-27875053

[2] http://www.reuters.com/article/2014/06/16/us-iraq-security-usa-warpowers-idUSKBN0ER2XU20140616

[3] http://www.theguardian.com/world/2014/jun/16/us-iran-talks-iraq-john-kerry

[4] http://www.foxnews.com/politics/2014/06/16/us-sending-275-troops-to-iraq/

[5] http://i.imgur.com/2pDmKhq.png

[6] http://i.imgur.com/2t8RKJT.png
How many security guard services do you know of, or do you think most people know of? My guess is that the market is opaque, fragmented, highly variable, and prohibitively expensive for many needs and use cases. This service probably doesn't kill off high-end security guard businesses, so much as it puts more security guards (or other, similar personnel down the line -- valets, caterers, etc.) within reach of customers who wouldn't otherwise have considered them an option until now. It's pushing out one demand curve, while creating options for others.

Bouncers look like a pretty small niche right now, but there seem to be lots of extensible paths. This isn't a cure for cancer, but it's an interesting approach to a non-obvious market. How many people have private parties every year? How many of those parties could potentially use this service? Even a fraction of that is a pretty enormous potential TAM if you think about it.
Announcing The Unicode Standard, Version 7.0
Start simple. Implement an adder, configured by some switches. Represent the output in binary on some LED's.

This will help you wrap your head around some of the important basics, and then you can go from there.

It is very difficult to debug FPGAs so it is important to "build up" to what you want in piece by easy to verify piece, instead of trying to build the whole thing at once and debug it later.
I have worked extensively with PSoC3 chips and they have been rather remarkble beasts to play around with. You know your hardware is only 8 bits. You want to implement FFT for 16 bit numbers. or 32 bits. This is slow. Well, don't fret. I give you CPLD components to design your very own DFT block in hardware which is 16 or 32 bit wide. So you have still some CPLD blocks left? Create another component in hardware, link it with DMA. Finally ahem, you want to do Filters. That is 8051 there, too slow. Use the DSP chip on the PSoC to utilize hardware optimized filters.

Essentially, DMA them all up and you can create a multi-tasking environment in a PSoC chip.
"If you need more instances, complete the Amazon EC2 instance request form with your use case and your instance increase will be considered. Limit increases are tied to the region they were requested for."

You could always ask @jeffbarr on twitter as well.
Chennai, India halts traffic to save life
Handling Technical Glitches Without Losing Sales (2010)
CUNY Professor Throws Shade on the Whole Damn System
When I said I'm on the other side, I met I'm one of those crazy machine learning guys[1] who doesn't see a business model in the full blown package.

You're right that this would be hard, but I'm wondering if the cost benefit analysis is there for it. I looked at this approach, and I don't believe it is relative to the costs incurred for something like this. I'd be willing to give it a shot at some point maybe, but neural nets behind the scenes for me involves more fun data behind fire walls ;).

[1] http://wired.com/2014/06/skymind-deep-learning/
Depends on which peripherals you have.

* A good start is a stop watch (if you have a 7seg and buttons available)

* Implement a digital function generator without using look-up tables. (Can read values over serial)

* If you have access to an ADC and DAC implement an echo filter, then a tuneable butterworth
I made an offhand remark about wanting a Linux-compatible IDE in a Cypress survey for educational users a few years ago. Surprisingly, I received a detailed response from a senior manager about some of the reasons that they've stuck with a Windows-only system. They were well aware of the interest from Linux users, but had made a business decision to focus on making their IDE work really well, even if only on one OS.
Stand Desk pre-order page
I appreciate the feedback, it's good to see real business for a service like this. I'll keep an eye on this space. If it's interesting maybe I'll jump in.
Build state-machines or cpu using logic gates in logisim. It sounds complex but there are only a handful of primitives you have to understand. Learning that FPGA conditionals are equivalent to multiplexers is much easier to learn when you make one by hand.
I'm interested in doing some audio work on fpga. At a minimum this requires a decent dac/adc. Can anyone recommend a cheap board that provides this onboard? Seems most kits with audio also contain video and got for around $400 AUD
'disappear' was probably a wrongly used word. It's money that will never be his, the income tax is paid to the government and they use it like any other tax money.

There are different levels taxation in Sweden if I recall correctly the upper level takes out 70% of the income, that is income earned after $200.000. So if I understand it correctly that would mean he needs to pay $2.660.000 in taxes on those $4 million.

I could be wrong though, but that is my understanding of it. If he's got a corporation where the money goes, that's an entirely different thing. My assumptions are it's a sole proprietorship or equal to that.
That's what I thought initially when I encountered the word, but there were judges ruled in patent cases where "comprise" means the items making up the entire parent item, no more no less.
Yeah, by all means they can block further writes to the drive, but you should always be able to read from it, even if the drive can't guarantee that the data is correct.

I've recovered many hard disks that have gone bad in various ways, including multiple Seagate Barracuda 7200.11 drives that suffered from the BSY bug, and I've never had a disk that I couldn't recover at least some of the data from, even if that meant hooking up serial cables and re-reading the data multiple times (eg: Spinrite).

But a drive that disappears completely when things go bad is never a good outcome.
You seem to assume that a programmer should know about the patent and all other similar patents/patent conditions before he/she implements. I don't think that's so easy to do.
You can go pretty crazy with this recursion in the Amazon -- one I found: https://goo.gl/maps/saJhL.

Note the river is a few kilometers wide, s.t. there are countless islands within it.
> No. I'm not a fan of "mindless" entertainment when there's so much that I don't have to turn off my brain to enjoy.

I don't mean it in the sense of being mindless entertainment, it's more off the get rid of your preconceived ideas of what constitutes entertainment and at some point you may well hit on a hook of some sort. Even if it's not with PewDiePie.

At some point the chasm between what's popular and what you have trained yourself to enjoy becomes so large that you'll be in a bubble and miss out on a shared global cultural experience. I think spending 2 or 4 hours a week just to keep up with pop culture from around the world is pretty damn important, and PewDiePie is a part of that. As is at least knowing about 非诚勿扰, stupid as it is. As is following the world cup in Brazil.
Is there a spread between the price of renting a car and lyft income?
About 3/4 of the way down, in response to: "The central idea in all of these protocols is simply to be stingy with the use of randomness. We ask Alice and Bob to play the CHSH game over and over again. However, in almost all of the plays, they simply both receive red cards—leading to a boring but also “cheap” (in terms of randomness) game. Only for a few randomly chosen plays does one of them receive a blue card."

If this is true, then these "clever" protocols are breaking the 50/50 rule of the CHSH game. Right?
World's Smallest Website
Call me cynical, but to me it feels like the people working on the startup are the cards of the game, being played by the VCs and the status quo.
Deploying Docker Containers on Elastic Beanstalk
The login protocol require sending a hash of the key used to decrypt the rsa key bundle stored server-side. I hope they implemented a constant time compare for that hash so that verification can't be used to work out key...
I don't think hypocritical is the right word. If they paid in taxes an equal amount that this program costs, would that still equal free education for their employees?
Based on his stance on how terrorists are bad because they're bad, I wouldn't hold your breath.
Wikipedia says 57%. And apparently he lives in the UK these days.
I don't think HN is really the place to accept this kind of status quo. We're not here to maintain a tradition. Somehow, I would be very glad that someone here break this barrier (not me, I'm trying to do that for the CNC world).
Not an island, but a recursive geo-political region: http://en.wikipedia.org/wiki/Dahala_Khagrabari
I have these two links, the second link has my wishlist for Satya and Android patents is on it:

https://news.ycombinator.com/item?id=7281319

http://hal2020.com/2014/03/03/satya-shuffles-his-leadership/...
"This controller is well known for its < 5.4 milliseconds response time"
The thing to know is that if something happens its up to you to find out, then figure out why. Just think of HN as actively hostile to all participation and you'll have the right mindset to get stuff done.
Can we stop putting the Silicon "prefix" in front of everything?
New EBS (AWS) volume type: General Purpose (SSD)
It looks like Amazon has released a third EBS volume type, and renamed "Standard" volumes to "Magnetic". General Purpose is currently the default type when launching "Create Volume" in the EC2 Web UI (https://console.aws.amazon.com/ec2/v2/home), which provides the following documentation:

"General Purpose (SSD) volumes provide the ability to burst to 3,000 IOPS per volume, independent of volume size, to meet the performance needs of most applications and also deliver a consistent baseline of 3 IOPS/GiB. Provisioned IOPS (SSD) volumes can deliver up to 4000 IOPS and are best for EBS-optimized instances. Magnetic volumes, previously called 'standard volumes', deliver approximately 100 IOPS on average, with a best effort ability to burst to hundreds of IOPS."

The EBS Pricing page (http://aws.amazon.com/ebs/pricing/) currently makes no mention of General Purpose (SSD) volumes.
> Less choice is never a good strategy when it comes to UI.

Apple has made quite a lot of money disagreeing with you there.
You could, but that would be a stupid thing to do, as would planning a murder that you have no intention of committing just "for fun". If you do that, well, hope no one finds your plans.

Jurors aren't mind readers. We have have a practical way to determine there was intent. Creating a plan to commit a crime shows intent. If you were doing it just because you're an ass-hat then you may pay the price for being an idiot.

No reasonable person is going to document a plan for a crime they have no intention of committing. You're living in a theoretical fantasy land.