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User: porky_pig_jr

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  1. Leibniz' notation is normally treated as a "suggestive kind", never to be understood literally. The origin of notation d^2/dx^2 goes from applying d/dx to d/dx, but d/dx only means "a derivative w.r.t. x" and nothing else. Sometime taking this notation literally and doing manipulations as if it were the regular fractions work (and that's b.t.w. is attributed to the early discoveries of many differentiation and integration rules), but it doesn't work most of the time. Any decent book on Calculus should point out that fact. Working with fractions helps to discover some rules, yes, but it's never rigorous, it's more like discovering something in a heuristic way, but then you still need a rigorous proof and that involves going back to basic definition of limits, not arguing in terms of "infinitesimals" (yes, I'm aware of Robinson's "non-standard calculus", but IMHO it's not a mainstream approach. Cheers.

  2. find black cat in a dark room. on Physicists Build Donut-Shaped Magnet To Find 'Ghost-Like' Dark Matter Particle (cnet.com) · · Score: 1

    even a dougnut shaped magent won't help with finding a black cat in a dark room - when it's not there. Researchers tend to forget that a dark matter is nothing more than a figment of someone's imagination.

  3. First drone delivers "REQ".
    Returns back with "ACK1".
    Files again with "ACK2".

    And - voila! Connection established!

  4. have no fear! on US Seeks To Allay Fears Over Killer Robots (bbc.com) · · Score: 1

    those robots will shoot only bad guys!

  5. is even more efficient!

  6. Separate, but some additions. on Users Don't Want iOS To Merge With MacOS, Apple Chief Tim Cook Says (smh.com.au) · · Score: 1

    I don't see any reason why Apple doesn't add the touch screen display to its line of laptops with MacOS. It will simply give a user more flexibility. Every once in a while touch screen is natural to use.

    Likewise, there is no reason why Apple doesn't add a mouse/touchpad support for IOS. Primarily for use with add-on keyboard. When you use a detachable keyboard with Ipad, it is more natural to use a mouse pad rather than moving your fingers from the keyboard to display. Yeah, I know, they are keyboard shortcuts to navigate the display, that's not as intuitive as using the mousepad for that purpose.

  7. I'm certain this very research paper .... on We're Not Living in a Computer Simulation, New Research Shows (cosmosmagazine.com) · · Score: 1

    was a part of simulation program. :-)

    "It's impossible using our current state of knowledge, therefore it's impossible". Impeccable logic, isn't it?

  8. what is a set of instructions? on Intel: Steer Clear Of Our Patents (axios.com) · · Score: 2

    One may argue that at this point it is a simply of specification of interface interpreted by microcode, and interface is not covered by IP, at least every USA court of law rejected any such case. In case of instruction set what matters is its implementation on a microcode level, and of course Qualcomm would implemented it in a way completely independent from the way Intel does. IMHO, Intel would have a hard time proving it otherwise.

  9. can I copyright something *I* think is a joke? on Can You Copyright a Joke? (npr.org) · · Score: 1

    Say, the words "President Trump". Suppose I think it's a joke. Can I copyright it as a joke even if it's probably already copyrighted (but not as a joke)?

  10. Hollywood writers? on TV's Golden Age Is Anything But, Say Writers Preparing To Strike (bloomberg.com) · · Score: 1

    I always thought that crap's been generated by not too sophisticated Perl script.

  11. I agree that there are some folks who hate anything mainstream. But seriously, there are some rationale to be negative about Mir. Don't want to beat a dead horse, but there's absolutely no reason but "not invented here" syndrome for the existence of Mir in the first place. Fortunately, it seems like for the cases like this natural selection works quite well. OpenOffice isn't quite dead yet, but it surely smells funny. Xemacs, RIP. My gut feeling is that Mir may end up exactly like those two. I'm sure there are more examples of that. And, while we're at that, someone mentioned Perl vs Python. As a person who had to main large Perl-based system, many years ago, I came to the conclusion that Perl was written by geeks and for geeks, with very little concern for requirements of production environment where maintainability of a code is a key. Perl exists solely so geeks can have fun writing a code no one else can read. And that's exactly why Python is becoming a standard script for the large production system, and I wouldn't care less about the "evil white space".

  12. here goes my dream ... on The Story of the First Human Head Transplant Won't Die (theoutline.com) · · Score: 1

    of transplanting my head to Oprah's body :-(

  13. solid state cache for a hard drive? on With Optane Memory, Intel Claims To Make Hard Drives Faster Than SSDs (pcworld.com) · · Score: 2

    So far having solid state cache for a hard drive is an idea which looks great on a paper, but practically everything that has been offered shows the performance - and we're talking about the real workload and the real user experiences - closer to the hard drive than to the solid state device. IMHO, since, apparently, we have a fairly large number of cache misses or some other anomalies, having the solid state cache which is 1000 faster than the traditional NAN-based one won't make too much difference.

    On the other hand, having the solid state device which only 10 times slower than DDR would make it excellent virtual storage. you can put 64GB of DDR4 on your server and then get 350GB slab of Optane. For all practical purposes you have 350GB of main memory. Swapping the working sets in and out would happen, for all practical purposes, instantly. But of course that's solution for data center, not for the regular user.

  14. A scene from not so distant future. on RealDoll CEO Aims To Make Its Sex Dolls Love You Back Via AI App (mirror.co.uk) · · Score: 2

    You: hey, let's make love!

    A real doll with AI: not tonight, honey. I'm working on proving the Riemann's conjecture.

  15. Smoking doesn't kill, indeed. on Donald Trump To Announce Mike Pence As Vice-Presidential Running Mate (theguardian.com) · · Score: 2

    That's lung cancer that does.

  16. Can't they just beg for money on craigslist, like everyone else does?

  17. Mexican drug cartel are ready to jump in! on FDA Bans Trans Fat · · Score: 2

    I expect to read the news of that kind in a near future. A track was stopped at US-Mexican border. The shipment was marked as a medicine marijuana supplied for CVS by their business partner Cali Cartel. However a careful search found under few bags of marijuana --- carefully packaged Trans Fats!

    We're winning the War On Drugs every day, right?

  18. here's more appropriate headline: on Google Helps Homeless Street Vendors Get Paid By Cashless Consumers · · Score: 1

    Google helps homeless street vendors get paid by cashless customers by bitcoins from a SilkRoad affiliated site. Stay tuned.

  19. Instead of B:C and AC ... on Bill Gates Wants To Remake the Way History Is Taught. Should We Let Him? · · Score: 1

    we're gonna have BG and AG. Or may be BM and AM.

  20. And they created their own music too! on Researchers Say Neanderthals Created Cave Art · · Score: 1

    (It survived till our days in a form of hip-hop.)

  21. Perl isn't dead, it just smells funny. on Perl Is Undead · · Score: 2

    Just my personal experiences. Back in 90s I was working for BBN Planet, in a group monitoring network traffic within AS1 (which is *us*). I have inherited a set of tools written in Perl which I had to maintain. Prior to that I had some moderate experience with Perl. So, when I started going through the code, I've found it sufficiently obfuscated to give me a head ache. I guess my predecessor was one of those "Perl kids who like to have fun", not understanding that production environment means, among other things, readability and maintainability. OK, fine. Roughly at the same time the administrator of multiple machines running that code (I think it was Solaris) decided to move from Perl 4 to Perl 5. That broke lots of scripts. So I decided to save time, found out what the functional specs were (from those who actually used those tools) and rewrote lots of the code just from the scratch. Because I was under some serious time pressure, I didn't care too much about either readability and maintainability either. Just to get something out of the doors, and - let my successor suffer just as I did.

    Well, BBN Planet, as we all know, is a history, but Perl, unfortunately, isn't. At least it is steadily loosing ground to Python and for reason. Cheers.

  22. And here, in USA, it's a quite different story :-( on Teaching Creationism As Science Now Banned In Britain's Schools · · Score: 1

    What makes me always amazed about USA: in some respect it is a highly developed country, its science and technology researches are often on a bleeding edge. Yet, at the same time, with all this crap like creationism, televangelists, in general attitude about religion, about sex, and so forth, it is SOOOOO provincial.

  23. China vs NSA. on NSA Hacked Huawei, Stole Source Code · · Score: 1

    Repeat after me: China = bad! NSA = good!

  24. What did Snowden deserve? on Ask Slashdot: What Does Edward Snowden Deserve? · · Score: 1

    Presidential medal of freedom (which for some unknown reasons went to Oprah).

  25. IBM OS for mainframes was 100% assembly language . on MenuetOS, an OS Written Entirely In Assembly Language, Inches Towards 1.0 · · Score: 1

    for a long time, till they came up with PL/S. The typical mainframe environment was COBOL or PL/I for application programming, assembly language for system and utilities.