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  • troubles with integration on matlab

    - by user648666
    I'd like some help please I really need to solve this problem. Well before anything thank you for your time... My problem: I have a matrix (826x826 double) and I want to integrate this matrix with respect to a vector of (826x1 double) I don't have the functions of any of this. Is there a command or an algorithm to take the integral of a matrix with respect to a vector? Please I really need help, I'm such a newbie at matlab. Sincerely. George

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  • Tabbed application troubles in xcode

    - by trludt
    I am working with my first tabbed application in xcode. I am just testing with some stuff since I'm relatively new to programming. I am just using the 2 views already put into the template. I am putting a slider into the first view and am going to attach it to a text box with numbers. But that isn't the problem! This is probably really stupid and simple, but when i run the application just to see the stuff on the simulator, it is just showing a black screen. NO CLUE WHY! But its killing me and would love some help!

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  • Troubles with a PHP session variable after form submission

    - by Psyche
    Hello, I'm setting a PHP session variable with a success message for a HTML form that I'm submitting. If there are no form errors, I redirect to the same page (using header()) and display the message from the session variable. Everything is fine until here, but if I access that page again after submission, the message is still there. Is it possible to make it appear only when I redirect after a successful submit? Thank you.

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  • Having troubles inheriting base class

    - by Nick
    When I inherit the base class, it's telling me there is no such class This is enhanced.h: class enhanced: public changeDispenser // <--------where error is occuring { public: void changeStatus(); // Function: Lets the user know how much of each coin is in the machine enhanced(int); // Constructor // Sets the Dollar amount to what the User wants void changeLoad(int); // Function: Loads what change the user requests into the Coin Machine int dispenseChange(int); // Function: Takes the users amount of cents requests and dispenses it to the user private: int dollar; }; This is enhanced.cpp: #include "enhanced.h" #include <iostream> using namespace std; enhanced::enhanced(int dol) { dollar = dol; } void enhanced::changeStatus() { cout << dollar << " dollars, "; changeDispenser::changeStatus(); } void enhanced::changeLoad(int d) { dollar = dollar + d; //changeDispenser::changeLoad; } This is changeDispenser.h: class changeDispenser { public: void changeStatus(); // Function: Lets the user know how much of each coin is in the machine changeDispenser(int, int, int, int); // Constructor // Sets the Quarters, Dimes, Nickels, and Pennies to what the User wants void changeLoad(int, int, int, int); // Function: Loads what change the user requests into the Coin Machine int dispenseChange(int); // Function: Takes the users amount of cents requests and dispenses it to the user private: int quarter; int dime; int nickel; int penny; }; I didn't include the driver file or the changeDispenser imp file, but in the driver, these are included #include "changeDispenser.h" #include "enhanced.h"

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  • troubles reading other apps config files

    - by Aivlis
    Hi guys, I have a problem. I have to access to the data folder of other applications from my application to read configuration's file and so on but it seems it's possible only to read data from the sdcard and my application's data folder. Can you suggest me how to solve this problem?

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  • Vector Troubles in C++

    - by DistortedLojik
    I am currently working on a project that deals with a vector of objects of a People class. The program compiles and runs just fine, but when I use the debugger it dies when trying to do anything with the PersonWrangler object. I currently have 3 different classes, one for the person, a personwrangler which handles all of the people collectively, and a game class that handles the game input and output. Edit: My basic question is to understand why it is dying when it calls outputPeople. Also I would like to understand why my program works exactly as it should unless I use the debugger. The outputPeople function works the way I intended that way. Edit 2: The callstack has 3 bad calls which are: std::vector ::begin(this=0xbaadf00d) std::vector ::size(this=0xbaadf00d) PersonWrangler::outputPeople(this=0xbaadf00d) Relevant code: class Game { public: Game(); void gameLoop(); void menu(); void setStatus(bool inputStatus); bool getStatus(); PersonWrangler* hal; private: bool status; }; which calls outputPeople where it promptly dies from a baadf00d error. void Game::menu() { hal->outputPeople(); } where hal is an object of PersonWrangler type class PersonWrangler { public: PersonWrangler(int inputStartingNum); void outputPeople(); vector<Person*> peopleVector; vector<Person*>::iterator personIterator; int totalPeople; }; and the outputPeople function is defined as void PersonWrangler::outputPeople() { int totalConnections = 0; cout << " Total People:" << peopleVector.size() << endl; for (unsigned int i = 0;i < peopleVector.size();i++) { sort(peopleVector[i]->connectionsVector.begin(),peopleVector[i]->connectionsVector.end()); peopleVector[i]->connectionsVector.erase( unique (peopleVector[i]->connectionsVector.begin(),peopleVector[i]->connectionsVector.end()),peopleVector[i]->connectionsVector.end()); peopleVector[i]->outputPerson(); totalConnections+=peopleVector[i]->connectionsVector.size(); } cout << "Total connections:" << totalConnections/2 << endl; }

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  • SQL Server GROUP BY troubles!

    - by Lucas311
    I'm getting a frustrating error in one of my SQL Server 2008 queries. It parses fine, but crashes when I try to execute. The error I get is the following: Msg 8120, Level 16, State 1, Line 4 Column 'customertraffic_return.company' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause. SELECT * FROM (SELECT ctr.sp_id AS spid, Substring(ctr.company, 1, 20) AS company, cci.email_address AS tech_email, CASE WHEN rating IS NULL THEN 'unknown' ELSE rating END AS rating FROM customer_contactinfo cci INNER JOIN customertraffic_return ctr ON ctr.sp_id = cci.sp_id WHERE cci.email_address <> '' AND cci.email_address NOT LIKE '%hotmail%' AND cci.email_address IS NOT NULL AND ( region LIKE 'Europe%' OR region LIKE 'Asia%' ) AND SERVICE IN ( '1', '2' ) AND ( rating IN ( 'Premiere', 'Standard', 'unknown' ) OR rating IS NULL ) AND msgcount >= 5000 GROUP BY ctr.sp_id, cci.email_address) AS a WHERE spid NOT IN (SELECT spid FROM customer_exclude) GROUP BY spid, tech_email

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  • simple JQuery example is causing me troubles for unknown reason

    - by cerr
    I'm relatively new to JQuery and would like to try something. I just followed a simple tutorial to start up with on http://docs.jquery.com/Tutorials:Getting_Started_with_jQuery So I specified my script in the : <script type="text/javascript"> $(document).ready(function() { $("a").click(function() { alert("Hello world!"); }); }); </script> and included a test link in the : <a href="">Link</a> however, when I refresh thet document my browser keeps saying TypeError: Property '$' of object [object Window] is not a function which I can understand for "normal" JavaScript but I believe this kind of function is new in JQuery. Can someone assist mer here, please? links:http://wittmerperformance.com/site/

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  • Troubles with NSString writeToFile

    - by Jesse
    Hi everyone, I have been working on a simple text editor in Cocoa/Objective-C for a practice project and I have come across an error that I would never have expected. I have an NSString for my file's contents as well as an NSString for it's path. When I attempt to write the contents to a file, I use the following method: [FileContents writeToFile: CurrentFileName atomically: NO encoding: NSStringEncoding error: nil]; I've used this method many times without error yet today, I am getting an error: "Expected expression before 'NSStringEncoding'" If anyone can help me out with this it would be greatly appreciated. I can't figure out what could be causing the error. Thanks a lot!

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  • jquery Troubles with binding to an element by id

    - by Alonzo
    Hi What im trying to do is that when the esc key is pressed on the text input field (id = txtSearch), some code will run. this is my code: $(document).ready(function() { $('#txtSearch').bind('keyup', function(e) { var characterCode; // literal character code will be stored in this variable if (e && e.which) { //if which property of event object is supported (NN4) e = e; characterCode = e.which; } else { characterCode = e.keyCode; } if (characterCode == 27) //if esc key { //do stuff } }); } It doesnt work for me. however, if i would change that line: $('#txtSearch').bind('keyup', function(e) { with: $(document).bind('keyup', function(e) { everything works. but i dont want to bind the keyup with esc to the whole document... any suggestions on how i can bind the the keyup only with the specific text search element? (or its containing div or something) Thanks!

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  • troubles creating a List of doubles from a list of objects

    - by Michel
    Hi, i have a list with objects. The object has a property 'Sales' which is a string. Now i want to create a list of doubles with the values of all objects' 'Sales' properties. I tried this: var tmp = from n in e.Result select new{ Convert.ToDouble ( n.Sales) }; but this gives me this error: Error 106 Invalid anonymous type member declarator. Anonymous type members must be declared with a member assignment, simple name or member access.

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  • Troubles displaying an associative array with PHP and HTML

    - by Psyche
    Hello, I have the following HTML code: <div id="newsTicker"> <span class="icon news"></span> <ul> [repeating structure] <li> <ul> <li><a href="#">News 1</a></li> <li><a href="#">News 2</a></li> <li><a href="#">News 3</a></li> </ul> </li> [/repeating structure] </ul> </div><!--/#newsTicker--> I also have a PHP array with news (title an url) and I would like to know how can I repeat that code inside [repeating structure] and display 3 different news for each repeating structure. Thank you.

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  • PowerDNS: multiple supermasters and transfering domain

    - by blauwblaatje
    Hi, I've got a setup with multiple supermasters (bind) and multiple superslaves (pdns). It all seems to work just fine, pdns is being updated when I'm adding or changing a domain. But, when I want to migrate a domain from one master to another, pdns doesn't like it. It tells me the new server isn't a master for this domain, although I deleted the domain on the old server. Now, I think that part of the problem is, that pdns doesn't get an update when a domain is deleted, which would also explain a lot of dead domains in my pdns. It looks like the slave is constantly polling a server and getting RCODE=5 back. The master isn't aware of the domain and the slave thinks the master still serves that domain. Anyone familiar with this problem?

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  • Need to add 30K new pages to a 10K page website - troubles ahead? (SEO)

    - by Jurga
    We have a situation with a website where we plan to add a huge amount of new pages. The domain is over 10 years old, approximately 10 thousand indexed pages, and the planned addition is approx. 30K new pages. Any idea how we should go about it? Must we schedule a gradual data release? Have you heard of any industry standards as to how many new pages per day / week / month should be added in order to appear natural and not get in trouble with Google? I.e. should we plan a bi-weekly addition of 5K?

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  • AppArmor Profile for PowerDNS

    - by Cory J
    I am currently working on a new authoritative nameserver using powerdns on Ubuntu 8.04 LTS. I'd like to have AppArmor protecting this service like it did with bind, but when I look in /etc/apparmor.d/, there was no AppArmor profile for this service installed by default. Any experienced pdns admins know what all files pdns accesses, so I can define a profile? Or better yet, does anyone HAVE a profile for pdns? Many thanks for any suggestions.

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  • Troubles Installing Windows 7 via USB. Flat install?

    - by Brian
    Hi friends, I've been struggling with this for a while. Windows 7 64-bit Enterprise edition just will not install on my Shuttle K45 system via a USB key. It hangs out during the install while copying files or while creating the partitions. The system is pretty standard and low-tech: IDE hard drives, no CD, 2G RAM. I am not sure what of the problem. Other than the Shuttle, I have a Apple MacBook Pro. On the MPB, I am running OS X, and Mint Linux and Window XP over Parallels. I have an ISO of Win7 that works (I installed it as a Parallels VM to make sure). I have used UltraISO and MS Windows 7 USB/DVD Download Tool to write it to the 8G USB key. Both seem to copy all the files correctly (with UltraISO, I asked it to verify). It boots via USB and the install looks just fine. Until it hangs, most of the time with a copying error of 0x80070241. So now I am trying to figure out if there are other ways I can install Windows 7 on this Shuttle system that has no CD drive. I've heard about a flat installation, however those all seem to be doing something from within Windows. I do have access to a command prompt from the Windows 7 install. Does anyone know if/how I can prep the Shuttle hard drive with Windows 7 installation and have Windows 7 install from the hard disk. I do not have an external enclosure for the IDE HD and I do not have any other system I can hook up to the hard drives. I do have an external Maxtor OneTouch drive available.

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  • Have to login twice. PHP sessions and login troubles with Chrome and Opera.

    - by Robert
    The problem I am encountering is that for my login form I have to login twice for the session to register properly, but only in Chrome (my version is 4.0.249.89) and Opera (my version is 10.10). Here is the stripped down code that I am testing on: Login Page: session_start(); $_SESSION['user_id'] = 8; $_SESSION['user_name'] = 'Jim'; session_write_close(); header('Location: http://www.my-domain-name.com/'); exit(); Home Page: session_start(); if ( isset($_SESSION['user_id']) ) { echo "You are logged in!"; } else { echo "You are NOT logged in!"; } Logout Page: session_start(); session_unset(); session_destroy(); header('Location: http://www.my-domain-name.com/'); exit(); Currently, under a fresh load with no cookies, if I go to my-domain-name.com/login/ it will redirect to the home page and say "You are NOT logged in!" but if I go there again it will say "You are logged in!". Any ideas? Thanks for your help.

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  • Troubles with my open id provider. How to debug ?

    - by Stefano Borini
    I have my own openid provider on my website, with phpmyid. It worked flawlessly until now, but apparently now it's not working anymore. I am unable to login anywhere I tried. How can I debug what's going on, to understand where's the problem ? I can add more details if required, but if I can figure it out by myself without having to paste stuff it would be better.

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  • jQuery noob: $("this").parent().attr("id",newId); troubles.

    - by Kyle Sevenoaks
    Hi, I have this code which I am trying to change the ID of on.hover. <span id="slidingProd"> <a href="{link controller=order action=addToCart id=$product.ID returnPath=true}" rel="nofollow" class="addToCart" title="Bestill" onclick="addToBasket(); return false;" id="fly_to_basket">&nbsp;</a> </span> I tried to use this jQuery, but it doesn't change the ID. $(function() { $("#fly_to_basket").hover(function() { $(this).parent().attr("id",slidingprod(1)); }); $("#fly_to_basket").hover(function() { $(this).attr("onclick",addToBasket(1)); }); What am I doing wrong? Thanks :)

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  • What's this setting of MATLAB for(which is causing lots of troubles for lots of people)?

    - by Runner
    This setting in PATH: D:\MATLAB\R2007b\bin\win32 Here is a fresh bad affect by this setting for me: http://stackoverflow.com/questions/2712913/why-does-this-program-require-msvcr80-dll-and-whats-the-best-solution-for-this-k And here's an issue reported by another guy: http://groups.google.com/group/ggobi/browse_thread/thread/dacea0fa93dcaf75 What's that setting for and why it's causing so many problems?

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  • Can't read CDs, can't create USB... how do I install Ubuntu?

    - by user68080
    Hello everyone and thank you in advance for your time. I have troubles with the latest Ubuntu distribution: since I upgraded to 12.04 Ubuntu has started having troubles (internal errors, packages that crash repeatedly, I can't install new packages, Ubuntu Software Center crashes, Java apps that worked stopped working and display weird mistakes, files were corrupted... a mess). I ultimately decided to format everything and install 12.04 from scratch. I made a backup and everything, but now I have troubles installing ubuntu 12.04. Specifically, a CD I burned with Brasero that works on another PC is not read by my laptop (not at boot phase, nor inside Ubuntu), and when I try to create a USB with Ubuntu (following the instructions I found on the ubuntu site) Startup Disk Creator stops at 22% saying that "the codes do not match". Any idea on what to do next? No, I can't buy a new PC.

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  • How to install specific version of MySQL?

    - by user85569
    I installed from the repo, 5.0.77... including setup of PowerDNS (and the backend for MySQL). I tried setting up replication from my Master (which is MySQL 5.1.53) but it didn't work even though there were no errors, nothing got replicated. So the last resort is to try the same MySQL version on both the master and the slave (nb, only the slave has pdns installed) How would I go about installing MySQL 5.1.53? I tried downloading the rpm from MySQL (obviously the wrong one, didn't even include the mysql command to shell into the databases), but in turn fucked up the dependencies for pdns' mysql backend. I have the atomic repo which will install MySQL 5.5 (both on my Master server and Slave), but I don't want to do a major upgrade on the master right now as it's in production. Would love some advice!

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