skysight-inc/HackerNews huggingface dataset:
For loop in Objective C
In this video, we will learn how to create for loop in Objective c. To view this video please visit the link http://findnerd.com/list/view/For-loop-in-Objective-C/3941/
Just right below is another post that says what to avoid in a startup. A stroke of luck that both posts get posted in same time.
How about a circuit-only subscription for non-US people or those who already have parts (or easy access to some)?

This could make for a good school club/activity.
It might help to look at it another way.

You can consider monads as being a design pattern that's been shown to be useful when dealing with laziness.

In Haskell they are endemic as the language itself is lazy. However, they are also useful in eager languages where one wishes to model a behaviour in a lazy manner.

The most common examples of the latter are probably: modelling temporal delays in async code (with Futures); delaying processing of exceptions (with Results) and delaying handling of nulls (with Optionals).

Where monads come in handy is that their composability allows you to decide precisely when you want to handle the relevant behaviour.

As with all design patterns they're no silver bullet. They have trade offs as do their alternatives, be that callbacks, exceptions etc. But they can be useful.
Elon Musk – Starting a Business
https://www.khanacademy.org/science/cosmology-and-astronomy/... have also done a good video on the scale of small and large, and putting the size of space into perspective, its pretty good.
I believe that it's a good idea for you. Surface 3 is a good device, the battery won't keep you alone during classes, it's not heavy to hold it on your backpack (and you'll save space). I have one Surface RT 2 and it's perfect to travel, or presentations and events. Just keep in ming that with Surface Pro 3 you can install any kind of stuff and with Surface 3 you are limited to apps and Microsoft Office. But, as a device to school it's fine.
'A bit faster' is an understatement. On the benchmarking machine used by the PCG author, you would get a ~2.5x speedup over that implementation, which would put Chacha20 roughly at (amortized) 5 cycles per 32-bit word. If you go Chacha8, which is still cryptographically secure, that becomes 2-3 amortized cycles per word. The flagship PCG generator from the paper, 'PCG XSL RR RR 128', runs at 1.81 nanoseconds per word on the same machine. This converts to ~6 cycles per word. So I am not inclined to believe the claim, right on the frontpage, that Chacha20 is 'fairly slow' .

Unless you're hurting for space---and in a Haswell machine you probably aren't---the case for using a cryptographic generator everywhere is strong. If you're hurting for space, or are on a less desktop-oriented architecture, you probably are not going to like 64-bit integer multiplications and variable rotation counts either.

By the way, you're using the aligned _mm_load_si128 and _mm_store_si128 intrinsics to load and store the block: https://gist.github.com/orlp/32f5d1b631ab092608b1#file-chach.... But there's no guarantee that block is aligned to 16 bytes, so that code may crash in some compiler/platform combination.
That can mean that the server hasn't got data it needs loaded and is returning empty requests, so it's good to spot those.
Bitcoin is crazy polarizing because it fucks with trust. Basically.
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Office politics unfortunately often wins over talent and results. And it's very hard for most people to recognise why certain things are happening within a company if you aren't immersed in the politics on a day to day basis.
See your point no #3 and #10 are contradictory.

first of all, I'm in complete disagreement over the #3. One shouldn't refuse to work with a newbie right away. it shouldn't be a criteria to avoid a CEO. There are first time CEO who are a success today - Mark Zukerberg, Elon Musk, Steve Jobs etc.
What a great piece that describes the new type existential despair seen in the modern world. How are we so isolated in spite of connectedness? The question of burning time, for money, for... what? How does one come to serve the haves who happened into success and wealth and prestige?

Still though, he makes more money than I do working as a computer engineer, which is a small consolation.

Anyway, outstanding read and I sincerely hope things improve for him and vets everywhere.
Actor is built on top of Akka that have built-in support for node-to-node communication. When our CTO will wake up, he will answer in details how it works.
His point was that the "it was better in my time" argument is as old as mankind it feels like. What you call drawbacks is what you experience in your childhood and what you think today's child are missing.
> $40-$50 an hour

No. Especially outside Bay Area. More like $10-$20/h.
Todoed: Turn any text into a task Best productivity chrome extension
>on the desktop actually sending an SMS from my GV number to a contact is nearly impossibly without entering the phone number by hand.

Yes, this is absolutely ridiculous. I have to look up the phone number using Google Voice plugin (which is nothing but a directory search now since Hangouts disables it), copy/paste the number into Hangouts, and SMS/call from there. It is completely unacceptable.
> Most of the time I'm completely invisible to the people I drive. Perhaps we're all conditioned not to speak to the hired help.

... or to strangers.
> “My card number has spaces. Do I enter my card number with spaces, or without?” To solve for this, we limit the input values to numbers only, so 0–9. So if a user types a space, it does not register and it does not affect the number format.

They failed, at the most important part of the form. The correct, i.e. the most user friendly solution is, obviously, to allow spaces (and optionally other characters, like "-,._") but ignore them when submitting the form. That way, users can type in the number any way they want. Using spaces to group digits makes it much easier to check the number after you've entered it (not that it's necessary, but I still often do it).

Edit: they seem to stick to this failure mode with other inputs as well, e.g. with the postal code input. In almost all circumstances, it's better to allow users to enter anything, and give feedback on whether it's correct or not (either when the focus moves to the next input, or better yet in realtime when the user is entering information, as long as you make sure that partially entered, potentially correct information is not labelled an error). For bonus points, reformat the entered information to some standard format (e.g. grupped dogits for card number) after the focus moves away.
What's the issue with smartphone-based solutions? For arbitrary locations where you can't install the equivalent of a punch clock, pressing a button on a personal device carried by the employee to record when work begins and end is the best option, and (unlike computers or even more technical equipment) a phone is always on and within reach, making it by far the most suitable personal device.

Being able to record in a convenient way where the work takes place (automatically, from GPS measurements) and what work it is (semi-automatically, from schedule data with user confirmation) is a nice bonus.
PEBCAK

(humorous) Problem Exists Between Chair And Keyboard. Used by technical support helpdesk staff to indicate that the problem with a user’s computer or experience is due to user error.

ps your story reads as the story about the woman microwaving her cat. Just because you did not get the message you should not do it, doesn't make it the microwave manufacturers fault.
While all eAsics are via programmable , only the 90nm version is programmable by eBeam. the rest requires a mask and minimum volumes - ie large expense. sorry on mobile so no link.

So maybe building something on(the gaisler is a good idea) an FPGA ,and proving enough market value and finding customers (not easy) ,should be the first part , and only than , using eAsic or Fujitsu's similar service for mid-volume ?
I applied for the US Air Force Cyber Command in 2008. While there is no way I could get a clearance I hoped to work in a purely defensive position.

At the time every branch of the military wanted its own computer security force; eventually they were unified under the Joint Forces Cyber Command, which is under the Stategic Command (STRATCOM); the Strategic Command is the joint successor to the Strategic Air Command.

(The military is heavily into the word "Joint". I cannot possibly speculate as to why.)

Each branch has its own force, MARFORCYBER for the Marines and so on.

They are all based in Ft. Meade however Ft. Meade really isn't that big. I expect they just use Ft. Meade to receive snail mail, but if you look up its Zip Code at http://www.usps.com/ in bright red text the resulting page says "The Postal Service does not deliver mail to Ft. Meade" but then provides the Zip Code.

(At least it did last time I checked.)

Also at Ft. Meade and open to the public is the National Cryptological Museum. You can see stuff like a U-2 and a real Enigma machine there.

You can apply to work for These United States at http://www.usajobs.gov/

I watched some recruiting videos when I applied to the USAF Cyber Command; one of pointed out that cell phones are not permitted in secure areas because they have a maintenance mode that enables The Phone Company to listen in without your knowledge. Have A Nice Day.
Commodore brand will be used on upcoming smartphone
I still kinda miss the era of UMPCs (how much has it been since I last used that term).

I always wanted tablets to be small PCs, not big phones. The whole mobile thing strips them of most of their productive potential, as they have most apps thought for quick glances and activities (social networks, feed readers, small games) rather than something that might take a considerable amount of time to do.

Thankfully there are exceptions in both fully tablet-oriented apps (just look how well Frozen Synapse works on Android tablets) and, as of lately, x64-powered tablets that can run intensive desktop apps.

Here's a photo of.. 9 years ago(?) of me running Halo on a Samsung Q1 ultra (on Windows XP!)
https://s3.amazonaws.com/f.cl.ly/items/1C3n3Z3F0o0w3f3L2N1q/...

It had a weak CPU for the time (Celeron 1Ghz single core or worse) and bad battery life, but featured some pretty quirks (mouse could be controller either via the resistive touch screen or an analog stick on the side, also arrow keys are mapped to a dpad, pretty handy for gaming I guess?) which I hoped would set the future for tablets to come, but they failed miserably, and now we're stuck with laggy capacitive screens covering the whole device with no decent haptic feedback whatsoever.
Another example of doing it wrong is when the form splits the cc number into 4 separate boxes, and automatically skips along merrily to the next box as you type it in. This might look nice and everything, but usually breaks if you try to backspace your entry, or paste etc
I think they were not first-time CEOs exactly. They had entrepreneurial personality as they did small projects before making it big. Newbies are usually those who are trying their hand in entrepreneurship for the very first time.
A better Governing Body for better domain names?
You know, this is one reason Microsoft needed to be making their own hardware, about a decade ago...

They are more on the right track now, but it's not in their DNA yet.
Probably lack of sleep. Modafinil itself only has slight nootropic effect if any, both in my experience and in studies.
That said, I have noticed similar pattern when overdosing caffeine or amphetamine. Though nothing like it when talking large doses of piracetam.

Sleep is crucial, Anything damaging it hurts performance a lot. Modafinil is only a way to keep part of normal performance when undersleeping.
Do they still (automatically) insert a gap in-between groupings of numbers?
It is not a matter of trapping - even asteroids which are much smaller have many more craters.
Microsoft Refuses to Open Source VB6
This is not entirely correct. Surface 3 does support desktop apps (unlike the Surface 2 RT)
> ZIP code: Length must be minimum 5 characters, maximum 10 characters

There goes Australia and their 4 digit zip codes...
Alignment Systems: Global Electronic Trading: Excel VBA – Does It Have a Future?
Give it a try - I just used the minimum C code function and implemented my own seeding function.
Jenkins DSL scripting basics – part 2
The UK government now says it is Not going to try to ban encryption
Yep - Surface is running full-fat Windows on an Intel Atom processor. No restrictions, there.
Why product thinking is the next big thing?
I wonder if they have customer beyond US/Canada that they mention. Otherwise this would fail spectacularly in other countries in general (eg, UK: both letters + numbers, Taiwan: 3 digit zip code)
Thank you for the response. This is actually the direction we're leaning towards, but many of our users aren't tech savvy.

Something we could do to ease this would be to send NFC tags to venues (to stick on their reception desks), with the check-in URL for that venue encoded, so when they pass their phone over it the web app opens in their browser with a big 'Check in' button (or 'Check out' if their clock is running).

A problem with this approach is that many non-flagship phones don't support NFC. I guess a QR code could be used for the same purpose.
The RF Telecommunications System for the New Horizons Mission to Pluto [pdf]
Cool concept! A couple things: 1) Using 'Tron' could be a bit problematic if Disney's lawyers get bored. 2) You might want to drop the annual price a bit, and maybe work on your shipping costs.
Toolbox for OS X
I'm not sure if there's any solution left that would make Windows a success on phones, so I'm criticising Satella's ambivalence around this core issue.

Satella acknowledges that the Windows Phone model hasn't worked, but seems to believe that reverting to Microsoft's old 2000-era model would eventually make it a success.

I guess, if I were suddenly appointed as circus leader in Redmond, I would just pull the plug on Windows 10 Mobile since it's been fatally wounded by the recent announcements anyway. The phone hardware division bought from Nokia has been entirely written down as a loss, so maybe I'd give them a year to build something that makes sense for their customers -- maybe an Office-centric Android device.

I'd probably try to peddle the ex-Nokia division to some large company that still wants to make phones for strategic reasons. There's one in Microsoft's home city actually. Maybe Amazon could reboot their Fire Phone using the Lumia brand, distribution reach and the Finnish hardware competence that still remains?
"Do Not Reinvent The Wheel Unless You Plan On Learning More About Wheels"
Show HN: Kilometer.io – Analytics for Startups
Great talk! The video is also linked from the site, under 'Video' in the banner: http://www.pcg-random.org/posts/stanford-colloquium-talk.htm...

For those who didn’t bother poking around and are interested in random number generation and C++, the blog also great: http://www.pcg-random.org/blog/
I personally like it when the form inserts a space for me after every 4 digits and has a maximum length of the field set to (number of digits + spaces between). For some reason I rarely see websites that have such forms. Maybe it is actually confusing for the majority of users.
Formally, yes.

Informally, it's sometimes referred to as "vat", e.g. calling a tax inspector "the vat man".

If used in context, no one is going to get confused by either pronunciation though.
Does anyone know what's the latest news about long-distance superconducting cables?
>treating me like a machine while my thoughts drift

The simple truth is that for many people! they hire someone to do a job and would rather not talk while that job is done.
Yes, I really enjoyed the article but I am not sure what was the conclusion. Should we respect the laws of economic theory even if they have no empirical influence in the real world? Or was Krugman just acting on faith and he was finally convinced by hard data, but it took some overcoming of his bias?
With my sysadmin hat on I do have a bias towards scripting languages that ship with the OS. Not increasing the OS/distro footprint is one of my 'things'.

I lean more towards Python these days because of tools like SaltStack and Ansible and great library support, and because it fits my brain better.

So with Linux, I'd probably recommend Python as it is a key part of most distros (like Perl still is too, but eg Ruby isn't). But on OpenBSD Python isn't a key builtin part of the OS while Perl is, so I'd still recommend Perl for an OpenBSD admin.
It's kind of a shame humanity evolved in one of the spiral arms of the Milky Way.

If we'd evolved in one of the Magellanic Clouds, we'd see an astounding squashed spiral view of this galaxy with direct line of sight of the bright nucleus.
How do you extract the tags, is it manually or automatic somehow?

EDIT: Nicely done otherwise, thanks!
That seems a good evaluation of it! It is particularly starting to grate on me how I rarely get updates for my phones despite the security holes found in the versions of Android I am running. Also, I look at reviews of Android M on Ars Technica etc. and realise that I will never ever be running that version of the OS on my devices, not in the foreseeable future. It saddens me.
https://news.ycombinator.com/newsfaq.html

Can I post a job ad?

A regular "Who Is Hiring?" thread appears at the beginning of every month, and you're welcome to post there. The rest of the time, job posts are reserved for Y Combinator-funded startups.

An account named whoishiring is the only one allowed to submit the regular threads. This prevents a race to post them first.
Article lacks pretty much any technical detail that would make it interesting. Whats the sensor size? What are the typical shutter speed? How do they compress the images? How do they compensate for the noise in now light? Do the cosmic rays impact image quality? Etc Etc.

So, duh.
If someone mentions they like a food or a movie or a song that you don't like, do you downvote?
Please stop trying to hide the urls you're trying to promote inside of text posts. You do this a lot, and it's obviously intentional.

https://news.ycombinator.com/newsfaq.html

How do I make a link in a question?

You can't. This is to prevent people from using this method as a way of submitting a link, but with their comments in a privileged position at the top of the page. If you want to submit a link with comments, just submit it, then add a regular comment.
Your brain is probably the most subtle instrument in the universe and you're plain stupid if you're going to blast it with synthetic drugs the long term effects of which are still unclear. And for what? Most of you people are already brilliant just like that.
Uber for taxi business services
Posting religious beliefs in a science based discussion will never go down well.
> We realized that users may enter the ZIP code associated with their personal address, instead of the code associated with their cards. To add clarity, we added a note in a tooltip, which asks for the code from the credit’s card billing address.

By the time some people start typing, they are looking at the keyboard and not at whatever is changing in the UI. The people who might need this tooltip won't be the ones to see it.
You had a NES in your home, now you have one on your site – as a web component
Personally i wouldn't interrupt Bill Gates. He's doing amazing stuff. But it could really appeal to other philanthropists who seek recognition and impact.

Another idea i had in that area - why won't great scientists collaboratively start an open DARPA - creating propositions for truly breakthrough science/engineering projects - and letting philanthropists buy and make them happen ?

Assuming philanthropists get at least one success from a few trials - it's guaranteed impact - on a very large scale.
Hey Duboff! Sorry to hear that -- what website were you trying to screenshot? Would love to try and fix your issue: you can reach me at leo@stackhut.com .
It breaks down as soon as you reach a single layer of nesting.

(a + b) / ((c + d) * e)

would be (with pure whitespace)

a+b / c+d * e

you'd probably end up mix-and-matching

a+b / (c+d * e)
I have a very charming Larry Wall story. He came to give a seminar to the research center where I was working, and gave a fantastic talk on Perl 6.

Late in the evening, I ran into him and his wife on the bus when getting home from work - and started talking to them. Apparently, nobody from the department had arranged to take them out for dinner, so we ended up going out for dinner together, where we had a fantastic discussion covering religion, tolerance, and lots of other topics. I am a staunch materialist and atheist, while both the Walls are serious committed Christians, but we had a really pleasant discussion on religion and the nature of evidence.

I ended up giving his wife a copy of Hume's Dialogue on Natural Religion, and they were kind enough to sign a copy of the Camel book for a friend who is a huge Perl fan.

A lot of people know Larry by reputation - but his wife Gloria is just as smart and kind. It was a bit of a strange evening, but it was a rare privilege to meet two such interesting people.
Hopefully they are covered by the medical system.
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I would encourage you to check out Windows 8.1 (soon to be Windows 10) tables like the Dell Venue 8 Pro (http://www.dell.com/us/p/dell-venue-8-pro/pd). They are essentially what the UMPC dream was about. And you can find great deals (usually <200 USD, once I even spotted them for 100 USD).
Also, dealing with AMEX screws up a lot of forms.

15 numbers, 4 then 6 then 5. Yes, only 3 groups. And the CVV2/CVC2/CID is on the front and four digits, not three.
Best Micro SDHC/SDXC Memory Cards for SmartPhone
Actually, I thought the black and white were the real colours until somebody pointed it out.

I really don't see the damage in releasing a sepia version of the picture. Why should I care that it's inaccurate? It's a postcard from the other end of the solar system.
Here you go :)

http://www.boulder.swri.edu/pkb/ssr/ssr-ralph.pdf
Slightly disingenuous headline since it's not "PlayStation-Powered", it's "(rad-hardened version of the same CPU the PS1 used)-powered".
Is this actually true? Any examples?
"As a matter of fact, many high performance systems used in telecommunications and financial trading are written in functional languages like Erlang, Scala and Haskell, which suggests that concerns about memory overhead due to excessive copying are probably overblown after all."
Judging from the screenshots with filled inputs, they automatically add spaces making the card number look exactly like it is on the physical card.

https://medium2.global.ssl.fastly.net/max/800/1*QzxyS4KGIvCw...
I'm in the UK and I see the prices in Pounds, so it seems to be not US only.
I find this mildly frightening, though hopefully that is just my imagination getting the best of me. A combat soldier who takes strangers around town all day, while thinking how much he identifies with the main character of Taxi Driver, a recluse vigilante who also kept a written diary of his thoughts before attempting to assassinate a politician.
Overloading whitespace as syntax to avoid parentheses is truly twisted...

And I thought significant indentation was horrific enough...

Perhaps the author would appreciate the language Whitespace:

https://en.wikipedia.org/wiki/Whitespace_(programming_langua...
I don't get the name and zip code requirements, is that standard in some countries? I only ever encounter the "Name on card" when shopping on US and UK sites. Danish online stores don't care.

Is the name and zip actually used as part of a validation process? If not it should just be left out.