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  • Good "Modelling & Simulation" book recommendations for programmers?

    - by Harry
    I'm a programmer, and have completely forgotten all the advanced engineering Math I studied ~20 years ago at school. I now have an urgent need to learn about Modelling and Simulation. Though the present context is Disease Modelling, I'm not sure if there's such a thing as 'general' modelling and simulation... with concepts / techniques / algorithms that could be used in just about any domain (and not just limited to biology, finance, trade, economic, weather, etc.) Would you have any recommendations that are easy to read by a semi-Math-literate programmer? Basically, I cannot afford to drown myself in too much Math and theory behind M & S, hence this post. Tia...

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  • Pointless 'MIDL_INTERFACE' Macro in winapi?

    - by nebukadnezzar
    After browsing some old code, I noticed that some classes are defined in this manner: MIDL_INTERFACE("XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX") Classname: public IUnknown { /* classmembers ... */ }; However, the macro MIDL_INTERFACE is defined as: #define MIDL_INTERFACE(x) struct in C:/MinGW/include/rpcndr.h (somewhere around line 17). The macro itself is rather obviously entirely pointless, so what's the true purpose of this macro?

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  • How to start on programming?

    - by Stustu
    At an old age I decided to start programming. I'm fascinated with graphics and web development. I understand general concepts of programming, like loops, functions etc. Which is the language to learn? How to start?

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  • Is C# fast enough for games

    - by Matt
    Will a game written in C# have any speed issues after long periods of play, like for 24 hours at a time? I'm specifically talking about a 2D RPG similar to old Final Fantasy or Dragon Quest games. I know that languages like Python will slow down too much, curious how C# would stand.

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  • Authlogic_OpenID - "uninitialized constant Rack::OpenID"

    - by Micah Alcorn
    So I followed the railscast tutorial (http://railscasts.com/episodes/170-openid-with-authlogic) and used the old version of the plugin from Ryan's git file. I can now successfuly create/register a user using OpenID (Google), but I cannot log in with this user. When I submit the OpenID that has been registered, I get "uninitialized constant Rack::OpenID". Any ideas? Thanks!

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  • how to add a sharethis button to my flash file?

    - by Matthew
    Hello guys, I have been searching for this solution for some time have not found any good solid solutions. Everything I have seen is either 2 years old and does not work. What I would like to do is use a MC in my flash file to act like a button and when clicked open the sharethis pop up to share this particular video's url. The site API docs really don't touch on Flash working with sharethis. Any help would do. Thanks, Matt

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  • SVN Repository folders don't match my solution folder structure in Visual Studio or folder structure

    - by Carlos
    I have a .NET solution which was badly organised, so I moved some projects around to appropriate folders. In the solution, I simply fixed the paths to the new locations, and everything is working in my working copy. I used AnkhSVN to commit the solution to the repository, which worked out fine as well. However, when I look in the repo explorer, the folders inside are organised in the old way. What do I need to do?

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  • DataGridView checkbox column - value and functionality

    - by nav
    Here is a reference the old SO question. http://stackoverflow.com/questions/1237829/datagridview-checkbox-column-value-and-functionality/1395215#1395215 I need to know, how would I get the information from a specific cell, so that i may further make the crystal report of the checked rows of datagridview. Thanks. -nav

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  • mod_rewrite issues

    - by ayyappan
    I have used the mod_rewrite module but was not able to redirect to the target page - I am getting an error: The requested URL /old.html was not found on this server. Rewrite rules as follows: RewriteEngine On RewriteRule ^/IN/index.html$ /IN/index.iface [L]

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  • Did anyone give these smart pointers (auto_any, scoped_any, shared_any) a test drive?

    - by Johann Gerell
    I'm investigating smart pointers with "shared" functionality for Windows CE and Mobile, where the VS 2008 tr1 std::shared_ptr cannot be used (due to linkage to a v.9 dll not present on CE, obviously, if I understand it correctly). There's a semi-old MSDN Magazine article with sources from a Microsoftie (Eric Niebler): Achieve More Reliable Resource Management with Our Custom C++ Classes. The reasoning, design and implementation of his shared_any looks solid, but I'm wondering if anyone ever actually tested the lot on any platform (not necessarily WinCe/WM)?

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  • Testing Silverlight install detection

    - by Pat Long - Munkii Yebee
    I have implemented a silverlight install process inline with the best practive approach described in Microsoft's "Installation Experience White Paper - Apr 2009". I want to test out the following user scenarios Old version of Silverlight No Silverlight Cross browser In the past I have seen tools for uninstalling and installing different versions of Flash for this same type of testing. Is there anything like that for Silverlight? I know I can disable the plug ins but that is not the same IMHO TIA Pat

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  • Not sure whether to use haXe of just plain flash

    - by tominated
    Hi Guys, A local sports clothing company has hired me to make them a flash based jersey colour picker sort of thing. They are wanting it so users can check out what particular designs would look like with certain colours. Now, I'm by no means a great developer (I'm 16, but I know my way around javascript, flash and a bit of AS2) but I've taken notice of haXe recently and think it might be a good project to write in it and compile to a swf. I'm not sure if I should just use flash, or if I should use haXe. Is anybody able to iterate on the strengths and weaknesses of using haXe or flash please? Thanks in advance! P.S. I do have a copy of flash (supplied by school), so that doesn't concern me.

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  • Is there any need to get a Computer Science degree?

    - by Tom Moseley
    I've been a software developer for 20 years. i've been involved in language development and large data warehouse development. I've worked for start-ups that have gone public, and for government contractors, and I've written a published programming book. My knowledge is either self-taught or on-the-job. I've worked with some of the best and brightest, and they taught me well. I'm back in school now, and am weighing my options, deciding between a Computer Science and a business degree. My question is this. What do I gain, at this point in my career, by earning a Computer Science degree? I just don't know if a Computer Science degree, at this point, is a value-add on my resume. Edit: I'm working on completing an undergraduate degree.

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  • Conditionally styling @font-face

    - by Gnee
    I'm using @font-face for some headers. The replaced typeface is different in dimension and overall character. When the switch happens, the old typeface's rules don't look so good. Other than writing a conditional Javascript script, is there a way to have a set of CSS rules for @font-face fonts (if the browsers supports it) and CSS rules for the unreplaced default fonts?

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  • How to write to the OpenGL Depth Buffer

    - by Mikepote
    I'm trying to implement an old-school technique where a rendered background image AND preset depth information is used to occlude other objects in the scene. So for instance if you have a picture of a room with some wires hanging from the ceiling in the foreground, these are given a shallow depth value in the depthmap, and when rendered correctly, allows the character to walk "behind" the wires but in front of other objects in the room. So far I've tried creating a depth texture using: glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, Image.GetWidth(), Image.GetHeight(), 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, pixels); Then just binding it to a quad and rendering that over the screen, but it doesnt write the depth values from the texture. I've also tried: glDrawPixels(Image.GetWidth(), Image.GetHeight(), GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, pixels); But this slows down my framerate to about 0.25 fps... I know that you can do this in a pixelshader by setting the gl_fragDepth to a value from the texture, but I wanted to know if I could achieve this with non-pixelshader enabled hardware?

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  • I wanted to be a programmer

    - by Henrik P. Hessel
    Hello, let me ask your opinion. I'm 25 now, living in Germany. I started with QBASIC, did some Java in Highschool, and after School I created some Websites in PHP. Now, because my Company is Microsoft Gold Partner, I've to use Microsoft all the time. C#, MSSQL, ASPX and Sharepoint <- I really hate it! So, in my spare I concentrate to gain more knowledge (C++, Java, Silverlight or WPF), because it feels that I'm so far behind, in comparison for example to you guys, or other older employees in my company. Do think that my behaviour is useful? Should I focus my time to become i.e. a pure C# Programmer? I did C# even before I started to learn some C++. Should I learn what do with pointers, memcpy and stuff like that, even if managed code brings us so much benefits? Or is it a waste of time, better invested in learning the latest technologies? rAyt

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  • Anything wrong with this php code?

    - by Hwang
    1st I have to say I know nothing bout php. I was actually doing my AS3 guest-book and through parts of tutorials from Activetut, I managed to come out a flash guest-book. So the problem now I'm facing is the guest-book could only inject 1 XML data and it will always clear off the old 1, while the flash is still caching on the old XML files. I'd found some other tutorials(which I think its quite hard since i dunno anything about php) and comparing to the php code I'm using, it seems to be extremely short. I have no idea what the code does, so currently I'm not sure whether the problems came from the php or my AS3. <?php if (isset($GLOBALS["HTTP_RAW_POST_DATA"])){ $xml = $GLOBALS["HTTP_RAW_POST_DATA"]; $file = fopen("wish.xml","wb"); fwrite($file, $xml); fclose($file); } ?> and below is my correct XML format: <WISHES> <WISH> <NAME>Test</NAME> <EMAIL>[email protected]</EMAIL> <DATENTIME>2/3/10</DATENTIME> <MESSAGE>Dummy Message</MESSAGE> </WISH> <WISH> <NAME>Test</NAME> <EMAIL>[email protected]</EMAIL> <DATENTIME>2/3/10</DATENTIME> <MESSAGE>Dummy Message</MESSAGE> </WISH> </WISHES> So anyone kind to explain what that php code does? cause it replace my XML with: <WISH> <NAME>Test</NAME> <EMAIL>[email protected]</EMAIL> <DATENTIME>2/3/10</DATENTIME> <MESSAGE>Dummy Message</MESSAGE> </WISH>

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  • Guide for http://www.ch-werner.de/javasqlite java wrapper library for SQlite?

    - by Tom Nielsen
    I'm working on a large computer science school project using java and SQlite. After finding out that the zentus.org wrapper errors on databases with ON DELETE and ON UPDATE clauses set, I have changed to the other wrapper found at http://www.ch-werner.de/javasqlite. However, I find the documentation lacking somewhat when trying to get an overview on how it works and how to use it, and the function descriptions are very very short, and you have to scan through every function and somewhat guess how they work and what they do. I wasn't able to find any guides on google on how to use it. My question: Does anyone know a link for a guide or tutorial for the ch-werner.de/javasqlite wrapper, or else can give me a basic code example, or give a quick overview of querying the database and the most used functions, and how to use them?

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  • Hotkeys no longer work in Visual C# 2010 Express

    - by Sir Graystar
    Suddenly none of hotkeys in C# Express work (like F5, F6 etc.). I don't know what I've done, but no doubt its something stupid. Does anyone know how to fixed this? I have tried the Keyboard settings in Options, but it won;t even let me add hotkeys for some reason, even once I've removed the old ones. So re-adding them does not work.

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  • Settings.bundle Not Appearing on Application Updates

    - by coneybeare
    I have an app that does not currently use a Setting.bundle to display setting in the iPhone Settings app. I am releasing an update that does. On a fresh install, the settings are added to the Setting App as expected, but upon updating from the old install, the bundle is not added. Is there some sort of trick to get the Settings App to show my Settings.bundle?

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  • teamcity force checkout

    - by stacker
    I have teamcity project that use mercurial. I did a few manually changes to the files in teamcity/buildAgent/work directory. The problem is that now I cannot update the files to the files in the repository. How can I force re checkout for the teamcity? Is there any option to get rid of the old checkout?

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  • Converting Plsql Trigger to Tsql

    - by mcb
    Hi, I am not good at tsql.How can does following trigger in tsql?For each doesnt work in tsql. CREATE OR REPLACE TRIGGER DSS.TRG_DEPO_STOK_IZLEME BEFORE INSERT OR UPDATE ON DSS.CR_DEPO_STOK FOR EACH ROW BEGIN INSERT INTO CR_DEPO_STOK_IZLEME (ID_DEPO_STOK_IZLEME , ID_DEPO_STOK , MT_MIKTAR_ESKI , MT_MIKTAR_YENI , EKLEME_TARIHI ) VALUES (SEQ_ID_DEPO_STOK_IZLEME.NEXTVAL , :NEW.ID_DEPO_STOK , :OLD.MT_MIKTAR , :NEW.MT_MIKTAR , SYSDATE ); EXCEPTION WHEN OTHERS THEN NULL; END;

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