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  • Confusion about Rotation matrices from Euler Angles

    - by xEnOn
    I am trying to learn more about Euler Angles so as to help myself in understanding how I can control my camera better in the game. I came across the following formula that converts Euler Angles to rotation matrices: In the equation, I could see that the first matrix from the left is the rotation matrix about x-axis, the second is about y-axis and the third is about z-axis. From my understanding about ordinary matrix transformations, the later transformation is always applied to the right hand side. And if I'm right about this, then the above equation should have a rotation order starting from rotating about z-axis, y-axis, then finally x-axis. But, from the symbols it seems that the rotation order start rotating about x-axis, then y-axis, then finally z-axis. What should the actual order of the rotation be? Also, I am confuse about if the input vector, in this case, would be a row vector on the left, or a column vector on the right?

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  • WebLogic Server 12c Launch Event - 1 December 2011

    - by Chuck Speaks
    Introducing Oracle WebLogic Server 12c, the #1 Application Server Across Conventional and Cloud Environments Please join Hasan Rizvi on December 1, as he unveils the next generation of the industry’s #1 application server and cornerstone of Oracle’s cloud application foundation—Oracle WebLogic Server 12c. Hear, with your fellow IT managers, architects, and developers, how the new release of Oracle WebLogic Server is: Designed to help you seamlessly move into the public or private cloud with an open, standards-based platform Built to drive higher value for your current infrastructure and significantly reduce development time and cost Optimized to run your solutions for Java Platform, Enterprise Edition (Java EE); Oracle Fusion Middleware; and Oracle Fusion Applications Enhanced with transformational platforms and technologies such as Java EE 6, Oracle’s Active GridLink for RAC, Oracle Traffic Director, and Oracle Virtual Assembly Builder Don't miss this online launch event. Register now.

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  • Job selection between (.net) or PHP [closed]

    - by Swapnil Gondkar
    Hi am Swapnil I am just a fresher passout of 2011 batch of engineering from Mumbai University I have developed dynamic websites on PHP and have quite a good experience working with php for 2years. Now When I went for interviews I got selected for a company that manifolds into PHP and its technologies to create websites.The other company in which I also got selected offers more than half the higher package than previous but I have to work here on .net platform and all the Microsoft Technologies which I do not merry. The work environment of php company is quite cool with 400employees(onli 10 php developers) and the .net company has only a strength of 20employees Now the thing is I do not know about Enterprise Application Building and other stuff so guys If any advice that may help me select my job would be appreciated.

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  • Are there some methodologies to define a game's rules?

    - by bAN
    I would like to write some rules for a game I have in head but I don't know how to do that. So are there some methodologies or modeling tools (like UML) to do that? I'm thinking about a kind of tree of competencies or some kind of map to be sure that the game is well balanced. I always wonder how the team who imagines some powers in magic the gathering for example does it. Do they have some diagrams to be sure the powers or creatures they imagine are well balanced for the entire game? I'm pretty noob in the game creation so I'll be happy with some directions to seek.. Technical terms or basic principles to learn. Thanks for help.

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  • Bluetooth from the command line in 12.04?

    - by azzid
    I've been trying to pair up my bluetooth keyboard with my computer after reinstalling from a standard ubuntu 12.04 to a minimal install. In the minimal install I have no gui, so I've been trying to use the various command line tools available, but I can't figure out how the pairing is supposed to go. Pairing when I had a gui worked flawlessly. I've asked for help here: http://ubuntuforums.org/showthread.php?p=12234695 No one has replied but a lot of details of my situation is available there. How is one supposed to pair bluetooth devices from the command line?

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  • Google I/O 2012 - Breaking the JavaScript Speed Limit with V8

    Google I/O 2012 - Breaking the JavaScript Speed Limit with V8 Daniel Clifford Are you are interested in making JavaScript run blazingly fast in Chrome? This talk takes a look under the hood in V8 to help you identify how to optimize your JavaScript code. We'll show you how to leverage V8's sampling profiler to eliminate performance bottlenecks and optimize JavaScript programs, and we'll expose how V8 uses hidden classes and runtime type feedback to generate efficient JIT code. Attendees will leave the session with solid optimization guidelines for their JavaScript app and a good understanding on how to best use performance tools and JavaScript idioms to maximize the performance of their application with V8. For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 3049 113 ratings Time: 47:35 More in Science & Technology

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  • Anyone code at a treadmill desk? [closed]

    - by Sequenzia
    have been thinking about getting a treadmill desk for awhile now but I just don't know if it is possible to code at one. I can see doing a normal computer job while walking very slow but I just don't know if you can write code do it. Like a lot of people I could stand to lose weight and I am just not in shape anymore. I sit at my computer for at least 12 hours a day and then I am on my laptop for a few more hours. I need to do something to help my health. I also have been seeing a lot of reports about the long term health issues related to desk jobs. Like this. Before I drop a few hundred dollars on a new desk I am wondering if anyone has tried a treadmill desk and if so which one?

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  • How do I install Adobe Acrobat Pro From Web Premium CS4,....?

    - by RedBunny
    I am Running the new Ubuntu 12.04 Beta 2, and am looking to install Adobe Acrobat Pro from My CS4 Web Premium CD. Whenever I try and install the setup.exe I get the following error: Internal Error - invalid parameters recieved. in a Wine Program Crash box. I am running wine 1.5 and have tried 1.4 also. I have used winetricks and PlayOnLinux, and cannot get it to install with either program. Any help would be appreciated,.... Also If I cant get it installed does anyone know any programs that can link .PDF files to MySql databases in Linux ,....? I really need this to be able to host some web forms for work. Thanx in Advance,..... ~RedBunny

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  • What tools exist to report bugs

    - by Luis Alvarado
    As of today I only knew about ubuntu-bug which I could use to report bugs about a specific program. But now I learned about apport-collect and apport-bug which basically are: apport-bug - Reports problems to launchpad using Apport to collect a lot of information about your system to help the developers fix the problem and avoid unnecessary questions and answers. apport-collect - Works as apport-bug but it send the information to an already existing bug report. In my case it was apport-collect 1060268 Thanks to Brad Figg in Launchpad. Are there any other tools to report bugs?

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  • How to install again Update Manager after uninstalling it

    - by biezdar
    Ok, the thing is this I tried asking many times on few ubuntu forums how to deal with my non-responsive Update Manager, but all I was getting was the same stuff (run it from the terminal, run some lines, apt-get update blah blah). Nothing was helping. Eventually I went mad Windows style and tried to simply uninstall it and install it again. The problem is - how to install it again? Can't do it through Software Center, can't really build a package (because I'm too stupid to do that). And I seriously want to avoid reinstalling the whole system. I am running a 12.04 verison (Update Manager was unable to update to a newer one) Please help. I am furious with this thing.

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  • Cannot start ubuntu-desktop

    - by Jack
    I am mainly a Windows technician and am trying to install ubuntu server. Everything worked fine and I can log in using the shell but when I installed ubuntu-desktop it just refuses to start? I did try startx and I get the message "server already running" I tried "start gdm" (what is this supposed to do?) and it comes back with "Job is already running: gdm" I know that the server version is not really for ubuntu-desktop but all our other servers are like that and I want it, is there any help out there? Ps. the server is running on a VM install that my IT department made for me and I connect to the machine shell using "Tera Ter Web 3.1" Thank you Jack

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  • "Fatal Error" message during boot process

    - by Denja
    I'm running Ubuntu 10.10 with ATI proprietary FGLRX graphic drivers When I boot, I can see this very quick message appearing; I don't have time to read it: **Fatal Error ..................................**(&@something i cant read) I searched through the log file in /var/log/ in order to find what is wrong and I did find something in the /var/log/Xorg.1.log: 21:31:08 [ 15.734] (--) using VT number 1 [ 204.647] Fatal server error: [ 204.647] xf86OpenConsole: VT_WAITACTIVE failed: Interrupted system call [ 204.647] [ 204.647] Please consult the The X.Org Foundation support at http://wiki.x.org for help. [ 204.647] Please also check the log file at "/var/log/Xorg.1.log" for additional information. [ 204.647] But this is already Xorg.1.log. And there is a Xorg.0.log also & Xorg.0.log.old but it doesnt have any error in it. My system seems to work properly and it seems its not affected by this But how do I correct this message? Any suggestions?

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  • 12.04 server on home network

    - by dustin mantei
    I need advice to help me with a server install, I'm new to ubuntu and linux in general. I have 6 systems in my house, 5 being windows 7 and this laptop that I am typing on is Linux mint 13 Maya. Question is, my wife will not transition to anything. She is stuck in Gates-land. so, can I make a server with ubuntu 12.04 (burnt disc image last night) so that all systems in my home can access and my mother-in-law in another state can also access with a username? That would be awesome and it may convince the war dept (my wife) to change all the systems in my house to ubuntu/linux. Sorry this is so long winded, but all the questions I have seen on this forum don't answer it completely.

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  • Remove ubuntu and install windows 8 on ultrabook

    - by Vegard Lokreim
    My computer (ultraboook : HP Envy 4 ) wont find the bootable windows usb. Unless its a ubuntu usb it wont show in boot selection (F9). I installed ubnutu as the one and only OS, and now i want to install windows as the only OS. The only problm is that my computer wont boot from the bootable usb. I think it has something to do with the boot settings that ubuntu has made to my computer.... I really need an answare as soon as possible, please help. Ive created a bootable windows usb in both windows and ubunut, and it still wont boot from the bootable usb, i also have a 300gb NTFS partition at the beginning of the harddrive, and it still wont boot into windows. I have a 32gb SSD and 500 gb SATA-HDD How can i get the system to recognize the bootable USB?

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  • Problems with No-IP redirecting

    - by user171156
    I am setting up a webserver on my ubuntu desktop 13.04, everything is working fine except; When trying to access the server through the external host using no-ip, it gives the original index created by apache on setup. While when I try to connect to the server via my real IP address from externally, it goes to the correct index. I have been trying to figure out what the issue is on this problem as nothing is working because of that bad redirect, I'm wondering if anyone of you could help me out, or advise me in the right path. Thank you very much! PS; If more info needed I'll provide, but this should explain it all.

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  • What method do I use to manage an app-specific background process?

    - by Simon Dubois
    I am developing an application with different behavior depending on the arguments : "-config" starts a Gtk window to change options, start and close the daemon. "-daemon" starts a background process that does something every X minutes. I already know how to use fork/system/exec etc... But I would like to know the main logic of such application to : restart or refresh the daemon when configuration change. keep only one instance of the daemon. I have read that killing the daemon to restart it is not a clean way to do. How other applications do ? (ubuntuone, weather forecast, rss feed working with notification area) Thanks for your help. PS : I don't want to create a system-wide daemon, just a user application with a background process.

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  • Ubuntu Desktop on PC as an IPv6 router?

    - by Cliff
    I have a DELL PC with Ubuntu 12.10 and a pandaboard running the latest linaro ubuntu 12.08. The Ethernet on the panda board is reporting 'no ipv6 router present' regardless of what router I connect (they are all probably not ipv6). I can connect via a cross-over Ethernet cable the pandaboard to the DELL PC. Can I setup the DELL PC to act as an IPv6 router. the PC has a wireless connect to our router/ADSL box. I would Really appreciate some help here so if you have an alternative please suggest it.

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  • Entry level developer career advice [closed]

    - by Evan
    I just got done with college and I have a full time job with a large software company that I have been an intern at for over a year. As an intern I was on the web team doing lots of architecture and developing UI in ExtJS and some Java backend experience. Now as a full time employee I am mainly doing ExtJS applications, which I enjoy a lot, and I want to stay in the web development field, but: Am I limiting my career options with just doing ExtJS stuff? Will experience in ExtJS help or hinder my programming skills? Will I be looked down upon because I'm only gaining experienced with ExtJS?

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  • Delete blank row in dropdownlist or select default value in infopath dropdown

    - by KunaalKapoor
    Regular Dropdown (Pulling from DataSource)1. Double click on dropdown field in the data source.2. Select Fx button for Default value.3. Select Insert field or group.4. Select secondary xml from data source.5. Select “value” and click on ok.For a cascading dropdown:You have to add the rule and follow these steps,1. Rules -> ‘Add’ - > ‘Add Action’.2. Select ‘Set a field value’ option in first dropdown in Action.3. Select your field with help of ‘Select a Field or Group’ option in ‘Field’.4. Select your external data source list value in ‘Value’.This rule you can apply in OnLoad or whenever you will get external data source values.

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  • Logitech Microphone (AK5370) inaudible volume

    - by Iain Lane
    I bought this microphone from Amazon last week. It's detected just fine in 12.10. I can see it in the sound preferences. The problem is that the volume is so low as to be inaudible, even when turned up to maximum in this dialog. It is working, as I can see that the meter responds to noise, but it's just too low. alsamixer's control is the same, so that doesn't help. I tried messing around in pulseaudio too, but to no avail. In lsusb it's Bus 002 Device 004: ID 0556:0001 Asahi Kasei Microsystems Co., Ltd AK5370 I/F A/D Converter.

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  • Subfolder non-www redirect

    - by Zealotry
    Is there a way to redirect a sub folder to no-www? What I use is: RewriteEngine On RewriteBase / RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC] RewriteRule ^(.*)$ http://%1/$1 [R=301,L] but this only redirects the www.example.com to example.com. I would like to redirect: www.example.com/home/ to example.com/home/ www.example.com/home/whatever URL to example.com/home/whatever URL. I have tried this: RewriteEngine on Options +FollowSymlinks -MultiViews RewriteCond %{HTTP_HOST} ^(www\.)?example\.com$ [NC] RewriteRule ^$ http://example.com [R=301,L] RewriteCond %{HTTP_HOST} ^www\.example\.com$ [NC] RewriteCond %{REQUEST_URI} !^/home/ [NC] RewriteRule ^(.+)$ http://example.com/$1 [R=301,L] This does not work, either. I can't really figure it out. Any help appreciated! ANSWER I figured it out and I will post it for others to see, if having the same issue. In the sub folder directory's .htaccess used the following: RewriteCond %{HTTP_HOST} ^(www\.example\.com)?$ RewriteRule ^(.*)$ http://example.com/subfoldername/$1 [R=301,L]

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  • wkhtmltopdf displaying text as blocks

    - by making3
    We're using wkhtmltopdf in a web project (nodejs/compoundjs). We've gotten it working how we wanted on our machines (using the --use-xserver switch). However, when I try to run this on our Ubuntu server 12.04 (without the ubuntu-desktop package), the PDF cannot use the switch. When we disable the switch, the PDF displays any characters as blocks (image below). How do I resolve this without installing ubuntu-desktop and running x server? I've found liberation fonts, which installing ttf-liberation and fonts-liberation did not help. And urw-fonts, but I have yet to find an Ubuntu equivalent. EDIT: It just hit me, this doesn't matter if I'm on the server or not. On my development machine (Ubuntu 13.04 desktop), I can run the following, which produces the same blocks: wkhtmltopdf http://google.com google1.pdf While this prints out the pdf properly: wkhtmltopdf --use-xserver http://google.com google2.pdf My version of wkhtmltopdf is 0.12.0.

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  • Failed i3wm install package has unment dependinces

    - by Spiitfire
    Tried installing i3wm from these instructions using the Ubuntu ppa http://i3wm.org/docs/repositories.html Got this error when I typed in the final command apt-get install i3 sudo apt-get install i3 Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: i3 : Depends: i3-wm (= 4.6.1-1+g4.6-88-ge99158e1) but it is not going to be installed E: Unable to correct problems, you have held broken packages. When I tried downloading the .deb file and running it I get an error in the software center saying "Dependency is not satisfiable: i3-wm (=4.5.1-2) Any ideas I am pretty much a noob

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  • Skype 4.2 crashes and bugs on 13.10

    - by Juhani Taylor
    I've installed Skype and it appears to work fine right up until the point where I try to call someone. If I try to video call someone then the programme freezes and I have to force quit. I've tried several 'solutions' I've found on various forums but none seem to work. Now, when I try to call the Echo service as a test to see if the bug's fixed, it seems to connect and start the non-video call, except that it's completely silent. No audio at all. Any help? It seems to be 2 separate issues: audio and generic crashing. Anyone come across these and found solutions?

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  • Chrome keeps crashing after updates

    - by Phil
    I'm a chrome user and an enthusiast but few days ago I made Ubuntu get some updates using Update Manager, then I turned off my notebook and when I restarted it, I tried to start Chrome which after a few seconds turned the screen completely black, and some errors appeared for few seconds and then I got logged off, and had to re-login, and when I opened Chrome again the same thing happened! I've uninstalled it with Synaptic and did complete cleanings before re-installing Chrome but nothing succeeded. Now I can't use either Chromium and Chrome, but Firefox works. It's a very strange thing, never happened to me before and I don't know what to do because I had all my bookmarks syncronized in Chrome! Please help if you can :)

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