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  • To find a determinate of Matrix using Boost library in c++

    - by user314097
    Hi, I' am required to convert a MATLAB function into C++, and this requires me to find determinate of a matrix. I was told that use of BOOST library would make my job easier. I went through the documentation of BOOST Library, but couldn't find much info about the same. If anyone could give a template for the above operation, It would be of lot of help and would be greatly appreciated. Thanks Regards

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  • Gain Access to Mouse Clicks in C# Component

    - by Jason
    I am using the ScintillaNET component and I am attempting to capture clicks in the margin, as this will determine how I respond. Unfortunately, the margins capture the mouse events (and don't provide a way, from what I can see, to get the click information - number of clicks, mouse button clicked, etc). If this is indeed the case (I am not able to get that info directly), what is another way of capturing what the mouse is doing before the MarginClick event is fired? Thanks for any help!

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  • How to calculate the cycles that change one permutation into another?

    - by fortran
    Hi, I'm looking for an algorithm that given two permutations of a sequence (e.g. [2, 3, 1, 4] and [4, 1, 3, 2]) calculates the cycles that are needed to convert the first into the second (for the example, [[0, 3], [1, 2]]). The link from mathworld says that Mathematica's ToCycle function does that, but sadly I don't have any Mathematica license at hand... I'd gladly receive any pointer to an implementation of the algorithm in any FOSS language or mathematics package. Thanks!

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  • Local-only version of `hg outgoing`?

    - by Grumdrig
    The command hg outgoing compares the local repo to the default push location; it accesses the push location to do it. I'd like to ask the question "have I checked in changes in my local repo since my last hg push?" without having to access the remote repo. It seems like there might be enough info in the local repo to figure that out; if so, is there a command to determine that?

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  • Information not getting into the controller from the view. (authologic model)

    - by Gotjosh
    Right now I'm building a project management app in rails, here is some background info: Right now i have 2 models, one is User and the other one is Client. Clients and Users have a one-to-one relationship (client - has_one and user - belongs_to which means that the foreign key it's in the users table) So what I'm trying to do it's once you add a client you can actually add credentials (add an user) to that client, in order to do so all the clients are being displayed with a link next to that client's name meaning that you can actually create credentials for that client. So in order to do that I'm using a helper the link to helper like this. <%= link_to "Credentials", {:controller => 'user', :action => 'new', :client_id => client.id} %> Meaning that he url will be constructed like this: http://localhost:3000/clients/2/user/new By creating the user for the client with he ID of 2. And then capturing the info into the controller like this: @user = User.new(:client_id => params[:client_id]) The weird thing is that EVERY other information BUT the client id it's getting passed and the client ID should be passed with the params[:client_id]. Any ideas? Perhaps it may have something to do with the fact that model User has "acts_as_authentic" because I'm using authologic for it? Model: class User < ActiveRecord::Base acts_as_authentic belongs_to :client end Controller: def create @user = User.new(:client_id => params[:client_id]) if @user.save flash[:notice] = "Credentials created" else flash[:error] = "Credentials failed" end end View: <% form_for @user do |f| % <p> <%= f.label :login, "Username" %> <%= f.text_field :login %> </p> <p> <%= f.label :password, "Password" %> <%= f.password_field :password %> </p> <p> <%= f.label :password_confirmation, "Password Confirmation" %> <%= f.password_field :password_confirmation %> </p> Let me know if this is sufficient or need more. <%= f.submit "Create", :disable_with => 'Please Wait...' %> <% end %>

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  • What does using mean in c++?

    - by user198729
    Like : using ::size_t; using ::fpos_t; using ::FILE; In fact it's a question inspired by the comment under this question: http://stackoverflow.com/questions/2532412/when-is-h-not-needed-to-include-a-header-file

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  • Where to keep config data other than config file (Windows App)?

    - by user144842
    My Windows application GUI is accepting some required application configuration fields from the user. I need to store them of course, but I wanna hide these fields from the user. I cannot use database to store these configs. I want to avoid using app.config either. (No app.config encryption) Any suggestions, Where and in which format i should store fields. (Field example is: Accepting database User credentials, Task Schedule info etc.)

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  • 'if' in prolog?

    - by jreid9001
    Probably a stupid question, but I can't find any documentation anywhere for it. Is there a way to do an if in prolog, e.g. if a variable is 0, then to do some actions (write text to the terminal). An else isn't even needed, but I can't find any implementation of if.

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  • which database to use

    - by ranjanarr
    I am developing an App in which I need to authenticate password, store user personal information and setting details / preferences. All these are user-mobile specific or rather App specific and are unique for each user,the password and settings info should not be lost once phone is switched off or user exits the App, which data storage rocedure is recommended for such App?

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  • Change a link's href value based on time

    - by justSteve
    I'm coding a 'Connect to Meeting' page where i would like the link that allows attendees to join our GoToMeeting event to 'become active' 15 minutes prior to the start time. So the page users visit to see the connection info (meetingID, password) includes the start time of the meeting. I need a button ('Connect To Meeting') to change from inactive to Active when [Now() < (StartTime()-15minutes)].

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  • methods of joining 2 tables without using JOIN or SELECT more than one distinct table in the query

    - by GB_J
    Is there a way of joining results from 2 tables without using JOIN or SELECT from more than one table? The reason being the database im working with requires queries that only contain SELECT, FROM, and WHERE clauses containing only one distinct table. I do, however, need information from other tables for the project i'm working on. More info: the querier returns the query results in a .csv format, is there something we can manipulate there?

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  • Setting up an independent delegate?

    - by fuzzygoat
    Its common for the dataSource and delegate to be the same object, its also common for this object to be the viewController. In all the info/tutorials that I have seen online delegates are always setup as above. If I wanted to create my own class instead can anyone give me any pointers as to how I might do that. Where does that object get instantiated, how do you connect the dataSource and delegate items etc. I am using UITableView to test this.

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  • NEED PROGRAM in visualc++ opengl [closed]

    - by HAREEFML
    I AM NEW IN OPENGL VISUALC++ PROGRAMMING.I NEEDED A PROGRAM THAT, THE ROTATING OBJECTS.WHERE THE CUBE,CYLINDER,TRIANGLE & CONE AND THESE OBJECTS ROTATE AS THE KEYBOARD ARROW KEYS ARE PRESSED AND EACH OBJECTS START ROTATION WHEN THE KEYBOARD NUMBERS 1,2,3,4 ARE PRESSED. CAN I GET PROGRAM LIKE THIS? THANKS IN ADVANCE.

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  • How to implement Android l10n ?

    1.How to implement Android system l10n ?It has been l10n in German.What is different between Android and Linux in realizing system localization? 2.What is Operational process of implementing Android l10n ? 3.What is needed to implement Android system localization? such as Unicode UTF8, charset,other anything else?

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  • How to looking for open vacancies [closed]

    - by Olexander Honcharuk
    Hi everyone, In the nearest future I'll end university with master degree in computer science. I wanna work abrooad after that. Could you please advise me sites, rss feeds where I can found info about open vacancies and job suggestions. Many thanks. You're welcome send me an email to ohoncharuk[at]hotmail.com

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