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• Virtual Box, Virtual Mac on Ubuntu Karmic ?

  - by Arkapravo

  Dear Friends I have been trying to virtualise Mac OS-X 10.5 Leopard (I used an iso) on my Ubuntu 9.10 Karmic Koala. Which has yielded no success ! ..... can OS-X be the guest OS in Virtual Box ? Has anyone done it, are there any legality issues Regards Arkapravo

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• Simulating a 6-faced die in Ada-2005

  - by Arkapravo

  Dear Friends ! I have very definitively come across the 'simulating a 6-faced die' (which produces a random integer between 1 and 6, all outcomes are equally probable) in Java, Python, Ruby and Bash. However, I am yet to see a similar program in Ada. Has anyone come across one ? Kind regards Arkapravo

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• symbol lookup error in player-stage !

  - by Arkapravo

  Hi everyone ! I was getting a symbol lookup error in player stage, I rectified it after hours of hit and trial ! ( see my blogspot ). Even then in about 30 uses, the error resurfaces and I have to rectify it !. As of now, I am able to work fine ! the rectification just takes about 30 seconds. However, I am not sure why is this happening! Can someone please explain whatever is SYMBOL LOOKUP ERROR and why does it happens ? Many thanks ! Arkapravo

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• On the lighter side : 'sudo apt-get moo' or a treatise on Ubuntu Cows !

  - by Arkapravo

  While dabbling about Ubuntu 9.10 ! I came across this command ! ..... sudo get-apt moo acer@acer:~$ sudo apt-get moo (__) (oo) /------\/ / | || * /\---/\ ~~ ~~ ...."Have you mooed today?"... Which most surprisingly 'made a MOO' ! .....Does anyone know any more such funnier outcomes of command line etc ? This is an easter egg in ubuntu ! .... and nearly every flavour of Linux has some !... how unfortunate for the cows !

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• Yggdrasil : Oldest Linux Distribution in CD !

  - by Arkapravo

  I wanted to try out Yggdrasil, one of the the oldest Linux distribution. I could not find an iso, but I could find the source files, I do not know how to install an OS from source files, can someone help ? Is there anyone who has used Yggdrasil ?

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• sudo apt-get moo and other easter eggs in Linux

  - by Arkapravo

  I came across this command while dabbling in Ubuntu 9.10: sudo get-apt moo acer@acer:~$ sudo apt-get moo (__) (oo) /------\/ / | || * /\---/\ ~~ ~~ ...."Have you mooed today?"... Which most surprisingly "made a MOO". (How unfortunate for the cows). Does anyone else know of funny command line easter eggs in their flavour of Linux (Fedora, Slackwire, Mandriva, Solaris, Suse, etc)?

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• PDF printer in Wine on Ubuntu?

  - by Arkapravo

  I wish to convert (print) my MS Word files to pdf on the fly. I am on Ubuntu 9.10 and using Wine 1.1.40. Can someone help? I have heard that a pdf printer can be installed using Wine Cups.

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• pdf printer in wine ?

  - by Arkapravo

  I wish to convert (print) my MS Word files to pdf on the fly ! I am on Ubuntu 9.10 and using Wine 1.1.40. Can someone help ? I have heard that pdf printer can be installed using Wine Cups ! Thanks !

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• Microsoft Robotics Studio in Ubuntu, with Wine ?

  - by Arkapravo

  I am using Ubuntu 9.10 and I am a bit of a robotics enthusiast. I have used KiKS (in MATLAB for simulating Khepera robots), MobotSim (in Windows, simulates a point like robot using a BASIC editor) and Player/Stage (with C/C++ on Ubuntu 9.04). My question, can MS Robotics Studio be installed in Ubuntu Linux using Wine (I am using 1.1.31) ? Has anyone done it ? Any other way to install MS Robotics Studio in Unix (Any flavour) ? Thanks for your reply !

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• openSUSE on Virtual Box : Guest Additions

  - by Arkapravo

  I am using openSUSE 11.0 guest in Ubuntu 9.10 host on Virtual Box. When I try to install Guest-Additions it doesn't really work as expected, the screen is not sized to fit the correct resolution, seamless working between 2 OS doesn't happen ! Has anyone tried installing Guest-Additions in openSUSE ?

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• Yggdrasil : Oldest Linux Distribution !

  - by Arkapravo

  Just for historical aspects, I was interested in knowing which was the first commercial Linux distro ! .... I found that it was Yggdrasil in 1992. I wanted to try it out (I doubt it will work with Virtual Box ! )..... but instead of an iso all I got was the source files , can someone please help me to install Yggdrasil from it ? I just wish to see which was the starting point of this distro revolution ! Is there anyone who has used Yggdrasil ?

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• On the lighter side : sudo apt-get moo

  - by Arkapravo

  While dabbling about Ubuntu 9.10 ! I came across this command ! ..... sudo get-apt moo acer@acer:~$ sudo apt-get moo (__) (oo) /------\/ / | || * /\---/\ ~~ ~~ ...."Have you mooed today?"... Which most surprisingly 'made a MOO' ! .....Does anyone know any more such funnier outcomes of command line etc ?

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• OpenCV installation in Ubuntu 9.04

  - by Arkapravo

  I wish to install OpenCV in Ubuntu 9.04, I used this installation guide, but nothing seems to work ! Is there anyone who has installed OpenCV in Ubuntu 9.04 ?

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• Nostalgia : old games and softwares

  - by Arkapravo

  I was looking for old games, and I stumbled upon http://www.abandonia.com. It is indeed a wealth of nostalgic games. Are there any more such sites hosting old games/ softwares etc ?

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• Why does Grub2 has a Memory test ?

  - by Arkapravo

  I was previously using Ubuntu Hardy 8.04 and now using Ubuntu Karmic 9.10. I am somewhat offended by the memory tests at the Grub2 start-up ? Why are they there ? Do I really need memory tests at start up ?

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• Ubuntu 8.10 and Ubuntu 9.10 in dual boot ?

  - by Arkapravo

  Hi Is it possible to have Ubuntu 8.10 as second (or third) boot with Ubuntu 9.10 as first boot ? I have not been able to get it to work, may be issues with Grub. PS : Don't ask me why I want this sort of dual boot, long story !

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• Virtual Box, full screen ?

  - by Arkapravo

  Hi How can I get Virtual Box go full screen, as of now I am getting my guest OS in a small screen (640 x 480) type, even 'going full screen' doesn't make any difference ? I want my guest OS to be of same screen size as my host OS ! Regards

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• Robotics Simulator

  - by Arkapravo

  Which is the best robotics simulator ? Player Project (simulator + control interface) Microsoft Robotics Studio (simulator + control interface) KiKS (in Matlab, only for Khepera) MobotSim (for point like robots ) ROS (I have only heard about it) URBI (also, only heard about it) Any other As of now, I am just looking to get simple simulations of Potential Field method, Bug Algorithms, A* Algorithm etc ! This article gives a number of such softwares etc, however I was looking for a first hand view from fellow stackoverflowers. Anyone who has worked with any other software etc is most welcome to share his/her experience !

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• Matplotlib, plotting discreet values

  - by Arkapravo

  I am trying to plot the following ! from numpy import * from pylab import * import random for x in range(1,500): y = random.randint(1,25000) print(x,y) plot(x,y) show() However, I keep getting a blank graph (?). Just to make sure that the program logic is correct I added the code print(x,y), just the confirm that (x,y) pairs are being generated. (x,y) pairs are being generated, but there is no plot, I keep getting a blank graph. Any help ?

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• Microsoft Robotics Studio, simple simulation

  - by Arkapravo

  I am soon to start with Microsoft Robotics Studio. My question is to all the gurus of MSRS, Can simple simulation (as obstacle avoidance and wall following) be done without any hardware ? Does MSRS have 3-dimensional as well as 2-dimensional rendering? As of now I do not have any hardware and I am only interested in simulation, when I have the robot hardware I may try to interface it! Sorry for a silly question, I am a MSRS noob, but have previous robotics h/w and s/w experience.

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• Microsoft Robotics Studio with Wine ? Is it possible ?

  - by Arkapravo

  I am using Ubuntu 9.10 and I am a bit of a robotics enthusiast. I have used KiKS (in MATLAB for simulating Khepera robots), MobotSim (in Windows, simulates a point like robot using a BASIC editor) and Player Stage/Gazebo (with C/C++ on Ubuntu Linux). My question, can MS Robotics Studio be installed in Ubuntu Linux using Wine (I am using 1.1.31) ? Has anyone done it ? Thanks for your reply !

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• random.randint(1,n) in Python

  - by Arkapravo

  Most of us know that the command random.randint(1,n) in Python (2.X.X) would generate a number in random (pseudo-random) between 1 and n. I am interested in knowing what is the upper limit for n ?

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• Microsoft Robotics Studio, simple simulation ! MSRS Newbie ! ....

  - by Arkapravo

  I am soon to start with Microsoft Robotics Studio. My question is to all the gurus of MSRS, Can simple simulation (as obstacle avoidance and wall following) be done without any hardware ? Does MSRS have 3-dimensional as well as 2-dimensional rendering? As of now I do not have any hardware and I am only interested in simulation, when I have the robot hardware I may try to interface it! Sorry for a silly question, I am a MSRS noob, but have previous robotics h/w and s/w experience.

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• Throw of a die in Java

  - by Arkapravo

  The throw of a die is a popular program in Java, public class Die { /* This program simulates rolling a die */ public static void main(String[] args) { int die; // The number on the die. die = (int)(Math.random()*6 + 1); System.out.println (die); } // end main() } // end class What I wish to do is make it repeat, 500 times. I have not been able to put this program into a loop of 500. I usually program in Python, thus I guess my Java has rusted ! Any help is most welcome !

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• On the lighter side : sudo apt-get moo

  - by Arkapravo

  While dabbling about Ubuntu 9.10 ! I came across this command ! ..... sudo get-apt moo Which most surprisingly 'made a MOO' ! .....Does anyone know any more such funnier outcomes of command line etc ?

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