Search Results

Search found 42090 results on 1684 pages for 'mean square method'.

Page 469/1684 | < Previous Page | 465 466 467 468 469 470 471 472 473 474 475 476  | Next Page >

  • How Uranium Refinement Works [Video]

    - by Jason Fitzpatrick
    While building a nuclear weapon is a complex task in and of itself, the most difficult part is refining uranium. In this informative video, Bill Hammack explains. Weapons and power plants require uranium that contains a greater amount of the isotope uranium-235 than found in natural uranium, which is mostly uranium-238. He outlines the key difficulty in separating the two isotope: They have nearly identical properties. He explains the two key methods for separation: Gas diffusion and centrifuges. What Keeps Nuclear Weapons from Proliferating HTG Explains: What Is Two-Factor Authentication and Should I Be Using It? HTG Explains: What Is Windows RT and What Does It Mean To Me? HTG Explains: How Windows 8′s Secure Boot Feature Works & What It Means for Linux

    Read the article

  • Is C# freelance possible? [closed]

    - by Chelios
    I am currently a junior C# developer. C# lets me write a big variety of all kinds of programs: I can create standalone programs aswell as websites. But I would like to do some freelance after I get good C# skills. Does C#/.NET (basically, all the Microsoft platmorm: ASP.NET, ADO.NET, MS SQL server) demand in the freelance world? Is it effective to freelance as C# developer? By effective I mean easy to find customers and good money. Thanks!

    Read the article

  • Apt-Daemon problem due to a broken sun-java6-jre package

    - by Marv
    I am having problems with installation with everything in the software center. Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/aptdaemon/worker.py", line 968, in simulate trans.unauthenticated = self._simulate_helper(trans) File "/usr/lib/python2.7/dist-packages/aptdaemon/worker.py", line 1092, in _simulate_helper return depends, self._cache.required_download, \ File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 235, in required_download pm.get_archives(fetcher, self._list, self._records) SystemError: E:I wasn't able to locate a file for the sun-java6-jre package. This might mean you need to manually fix this package. Help?

    Read the article

  • How much code do you write everyday, *at work*?

    - by Aerovistae
    I'm graduating college, about to start a junior software engineering position, and I've been wondering how much I'm going to be expected to do on what kind of timeline. I mean, in python I can write maybe 500 lines in 8 hours. In C, maybe 200 lines in 8 hours. And that's a big maybe. (I'm f#$*ing terrible with C.) Other languages are somewhere in between. I don't even know if that's ridiculously slow or normal or even good, hence the question. How much code do you write a day? It would be helpful to specify what language/technology you're using, and to make note if there are big differences between them like with myself.

    Read the article

  • Is linux binary universal to all kinds of distributions?

    - by prosseek
    I happen to install model sim VHDL simulator on Linux. The manual says it only supports RedHat or Suse, but I just tried to install it on Ubuntu. And, it just installed and works perfectly. Is linux binary universal to all kinds of distribution? I mean, if I make a program on distrubution A, can I be sure it will run on any linux? Why most of the commercial program vendor says the program is running on specific distribution? (mostly Redhat and Suse, not ubuntu)

    Read the article

  • How do I check that my tests were not removed by other developers?

    - by parxier
    I've just came across an interesting collaborative coding issue at work. I've written some unit/functional/integration tests and implemented new functionality into application that's got ~20 developers working on it. All tests passed and I checked in the code. Next day I updated my project and noticed (by chance) that some of my test methods were deleted by other developers (merging problems on their end). New application code was not touched. How can I detect such problem automatically? I mean, I write tests to automatically check that my code still works (or was not deleted), how do I do the same for tests? We're using Java, JUnit, Selenium, SVN and Hudson CI if it matters.

    Read the article

  • SUN Java and GPL V2 licence issue for linked applications

    - by user255607
    I have recently noticed that the Sun Java code has been released as GPL V2 code (see Google code repo). Does that mean that all applications written in Java and linked to Sun APIs (beans, and so on) are also in GPL ? If we strictly follow the GPL then this should be the case (Libs should be in LGPL, not GPL if we want to build proprietary software on top of it). Is there another commercial licence which can avoid such an issue ? I cannot believe this is the case. There must be an explanation on this. Regards, Apple92

    Read the article

  • Weird keywords in google webmaster tools

    - by Argoron
    I just happened to check the keywords list on Google Webmaster Tools for my site, which is an educational content site about finance. To my big surprise, after the first keyword, which is 'finance', I found amongst the 20 highest ranked (!) entries words like: mysql, server, adobe, flash, player, homez. What (i'm tempted to add "the heck") does that mean ? Is that something I should worry about? If so, how did these get there and how can I eliminate these / avoid they get into that list ? Thanks very much in advance for your help

    Read the article

  • What to do when Ubuntu 13.10 64-bit does not boot?

    - by Anonymous John
    Ubuntu 13.10 will not boot, it won't even show the grub menu or Ubuntu booting. There is just a purple screen for 20 seconds then a black screen, then the screen says entering power save mode. here are my system specs:Intel DQ965GF Motherboard (OS independant), Intel core 2 64-bit, 12GB HHD (SATA), 200GB HHD (SATA, installed here), 250GB HHD (SATA, Encrypted with LUKS), 3GB DDR2 RAM (DIMM 0 A 1024MB,DIMM 1 A 524MB, DIMM 0 B 1024MB, DIMM 1 B 524MB),2 Rewritable DVD drives (one SATA and one IDE), small floppy drive and car reader, and AMD gallium 0.4. That's all I know from the top of my head, I have no OS to give me more info on the graphics card, but all Ubuntu OSs worked on my PC from 12.04-13.04 just fine. Does this mean will never be able to use Ubuntu 13.10? I think I am screwed.

    Read the article

  • SQL Server v.Next (Denali) : Why you should start testing early

    - by AaronBertrand
    Denali is coming, whether you like it or not. You may not be an early adopter and you may not have plans on your current calendar, but at some point you will need to move your apps and databases to this release - or one very much like it. There are a lot of great new features you will be able to take advantage of, but not everything is a double rainbow. There are some changes that will break your spirit if you let them. What does it mean? I go over several breaking changes in my presentation that...(read more)

    Read the article

  • 2D game big background images for maps

    - by WhiteCat
    Update: this question is general, not specific to Sprite Kit or a single language/platform. I'm toying with Sprite Kit with an idea to make a 2D side-scroller. Now the backgrounds for the maps are going to be hand-drawn and surely bigger than retina display, so the maps could span more than 1 screen in both axis. I imagine loading such a huge image could mean trouble and I don't plan to use tiling. I'm not sure how Sprite Kit splits images bigger than max texture size, if it does. I could split the images myself and use more sprites for each part of the background. What is the usual way to handle this?

    Read the article

  • Can't run TOR from terminal

    - by Thi G.
    So... I can't run TOR from my terminal. I have tried many different things, but I couldn't make it run. Once, it didn't stop to run when I wanted to. At my other attempt I also ended up failing because when it stopped to run I couldn't connect myself to the internet. I hope you can help me here guys. To be more specific, what I mean by "can't run from terminal" is that I can't hide my IP if I'm installing a program from terminal, for instance. Or if I'm running another program that is making a connection with the internet, my IP isn't being hidden. What I want is to make TOR work for all my programs. So my IP would be hidden in any connection with the internet.

    Read the article

  • How to install wvdial without getting the following error?

    - by chndn
    When I ran the command: sudo apt-get install wvdial I got this error message : error p@p:~$ sudo apt-get install wvdial Reading package lists... Done Building dependency tree Reading state information... Done Package wvdial is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package wvdial has no installation candidate p@p:~$ So how can I install wvdial? I don't have access to internet from Ubuntu for direct installation. Please help

    Read the article

  • Can aynone tell me what exactly 32bit/64bit and x86 and AMD64 have to do with the different choices on the download site of Ubuntu?

    - by Elysium
    SORRY for the newbie question, but I am still learning. I am wondering if x86 simply refers to the intel CPUs and AMD64 simply refers to the AMD CPUs? While....32bit and 64bit to the processor types? I was trying to download the intel 64bit version of the Ubuntu installer, but it wont give the option of x86 and AMD64....only the 32bit and 64bit can be chosen. Does this mean that someone with an Intel CPU and another person with an AMD CPU will download the same install file? (obviously depending on the bit version of their CPUs this might differ....but that's another thing).

    Read the article

  • Unity-2D ALT F1,F2 custom configuration

    - by LGB
    I have been using Ubuntu since the first public version (I used Debian before). I always have had the policy to change between 8 workspaces with ALT F1...F8. I know this is not a "standard" or so, but I prefer this. It worked well with Unity (Unity-2D, I mean) too, after some configuration. But currently the odd thing happened that after a system restart this is not the case anymore, I am totally lost what could happened. Now ALT F3...F8 works, but not ALT-F1...F2, which just focuses launcher/dash, which is not the thing I want. I know this is the standard meaning of these key combinations (AFAIK) but defining my own key combinations worked before and now it stopped working ... If someone have any idea how to restore my custom configured meaning for ALT F1...F2 too, please share with me. Thanks!

    Read the article

  • Which is the best non-java, dynamic, programming language to build attractive GUIs?

    - by VeeKay
    I am well acquainted with java and groovy but somehow I am not intrigued by the performance or looks of swing based applications that are developed on the same. So I want to learn and know about THE best alternate dynamic programming language (coz I am looking for little bit of luxury while writing code by not willing to fiddle with pointers, memory handling, static typing difficulties etc) to develop attractive cross platform GUIs. To be precise, when I say attractive I mean support for elegant translucent windows and nicer components (not the flashy adobe stuff). Can you please suggest me a programming language that manages to fit into this?

    Read the article

  • Automatically sync a folder to a USB when USB is plugged in?

    - by John
    Is there a way to sync a folder to an USB drive when the drive is plugged in? I'd like it to sync, or copy over changes, both ways. I've seen the Back In Time and Unison-GTK applications, but I'd like for it to run as soon as the drive is mounted. What I mean is, unintrusively sync the two folders without any input from myself besides setting it up. If this isn't possible, is it possible to run the application when the thumb drive is plugged in to remind myself to sync manually? Thanks!

    Read the article

  • Any way to list similar commands?

    - by Septagram
    When you write the command name wrong, bash often does this: septi@norbert:~$ good No command 'good' found, did you mean: Command 'gold' from package 'binutils' (main) Command 'gmod' from package 'gmod' (universe) Command 'goo' from package 'goo' (universe) Command 'god' from package 'god' (universe) Command 'geod' from package 'proj-bin' (universe) Command 'gord' from package 'scotch' (universe) good: command not found Or sometimes it does this: septi@norbert:~$ nftp No command 'nftp' found, but there are 23 similar ones nftp: command not found Is there any way to ask bash to show these 23 similar commands for me? And, is there a way to show similar commands, including those that aren't yet installed, instead of running the application, ftp for example?

    Read the article

  • Design Pattern Books, Papers or Resources for Non-Object Orientated Paradigms?

    - by FinnNk
    After viewing this video on InfoQ about functional design patterns I was wondering what resources are out there on design patterns for non-object orientated paradigms. There are plenty out there for the OO world (GOF, etc, etc) and for architecture (EoEAA, etc, etc) but I'm not aware of what's out there for functional, logic, or other programming paradigms. Is there anything? A comment during the video suggests possibly not - does anyone know better? (By the way, by design patterns I don't mean language features or data structures but higher level approaches to designing an application - as discussed in the linked video)

    Read the article

  • Friday Fun: Sugar, Sugar 2

    - by Asian Angel
    In this week’s game you indulge in sugary-sweet fun as you control the direction sugar flows while working to fill all the empty cups waiting for you. Whether it is a downward flow, redirected off-screen and back, reverse gravity, or teleportation you will certainly find your ingenuity tested as you try to win before the flow of sugar runs out! HTG Explains: What Is Windows RT and What Does It Mean To Me? HTG Explains: How Windows 8′s Secure Boot Feature Works & What It Means for Linux Hack Your Kindle for Easy Font Customization

    Read the article

  • Proper password handling for login

    - by piers
    I have read a lot about PHP login security recently, but many questions on Stack Overflow regarding security are outdated. I understand bcrypt is one of the best ways of hashing passwords today. However, for my site, I believe sha512 will do very well, at least to begin with. (I mean bcrypt is for bigger sites, sites that require high security, right?) I´m also wonder about salting. Is it necessary for every password to have its own unique salt? Should I have one field for the salt and one for the password in my database table? What would be a decent salt today? Should I join the username together with the password and add a random word/letter/special character combination to it? Thanks for your help!

    Read the article

  • Why is 2^16 a "special" number?

    - by javamonkey79
    OK, I feel stupid asking this - but in Jeff's article: Getting the Interview Phone Screen Right and originally stated in the 5 essential phone screen questions: They shouldn't stare blankly at you when you ask with 2^16 is. It's a special number. They should know it. I've been a developer\software engineer\code monkey\whatever for a little while now, and I don't think I've ever come across this. I mean, I can certainly count binary values do basic operations on them, etc, etc. But I don't see what is "special" about this value.

    Read the article

  • What is Pseudocode?

    - by Jae
    I've seen a lot of mentions of Pseudocode lately, on this site and others. But I don't get it: What is Pseudocode? For example, the Wikipedia article below says "It uses the structural conventions of a programming language, but is intended for human reading rather than machine reading." Does this mean that it isn't actually used to make programs? Why is it used? How is it used? Is it considered a Programming Language? See the above Wikipedia quote. Is it commonly known/used? Anything else... I honestly don't know where to start with this. I have Googled it and I've seen the Wikipedia article on the topic, but I still don't fully understand what it is.

    Read the article

  • What's the difference or purpose of a file format like ELF when flat binaries take up less space and can do the same thing?

    - by Sinister Clock
    I will give a better description now. In Linux driver development you need to follow a specification using an ELF file format as a finalized executable, i.e., that right there is not flat, it has headers, entry fields, and is basically carrying more weight than just a flat binary with opcodes. What is the purpose or in-depth difference of a Linux ELF file for a driver to interact with the video hardware, and, say, a bare, flat x86 16-bit binary I write that makes use of emulated graphics mode on a graphics card and writes to memory(besides the fact that the Linux driver probably is specific to making full use of the hardware and not just the emulated, backwards compatible memory accessing scheme). To sum it up, what is a difference or purpose of a binary like ELF with different headers and settings and just a flat binary with the necessary opcodes/instructions/data to do the same thing, just without any specific format? Example: Windows uses PE, Mac uses Mach-O/PEF, Linux uses ELF/FATELF, Unix uses COFF. What do any of them really mean or designate if you can just go flat, especially with a device driver which is system software.

    Read the article

  • New Java ME security app, Rapid Tracker, is now full version

    - by hinkmond
    Rapid Protect has updated it's Java ME security app to be the full version now instead of a dumbed down version that ran on feature phones. Now, that's progress! See: Full Rapid Tracker on Java ME Here's a quote: Rapid Protect, a leading company focused on mobile based safety, security and collaboration space announces major feature enhancements to its award winning "Rapid Tracker" mobile applications. In addition to many new features, it announced availability of Full Rapid Tracker application on J2ME non-smart feature phones. Hmmm... "on J2ME non-smart feature phones". I wonder if by "non-smart" they mean another word... Perhaps, "non-iDrone-Anphoid"? Hinkmond

    Read the article

< Previous Page | 465 466 467 468 469 470 471 472 473 474 475 476  | Next Page >