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What's “P=NP?”, and why is it such a famous question? [closed]
...location problems that we could solve effectively.
You may have heard the description NP-complete. An NP-complete problem is one that is NP (of course), and has this interesting property: if it is in P, every NP problem is, and so P=NP. If you could find a way to efficiently solve the Traveling ...
How can I set the text of a WPF Hyperlink via data binding?
... looks strange, but it works. We do it in about 20 different places in our app. Hyperlink implicitly constructs a <Run/> if you put text in its "content", but in .NET 3.5 <Run/> won't let you bind to it, so you've got to explicitly use a TextBlock.
<TextBlock>
<Hyperlink Co...
How to add Web API to an existing ASP.NET MVC 4 Web Application project?
I wish to add an ASP.NET Web API to an ASP.NET MVC 4 Web Application project, developed in Visual Studio 2012. Which steps must I perform to add a functioning Web API to the project? I'm aware that I need a controller deriving from ApiController, but that's about all I know.
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Performance optimization strategies of last resort [closed]
...ourceForge project containing source code in Visual C++ and a blow-by-blow description of how it was tuned. It only goes through the first half of the scenario described above, and it doesn't follow exactly the same sequence, but still gets a 2-3 order of magnitude speedup.
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How do I resolve “Cannot find module” error using Node.js?
...to the current directory only (in a subdirectory called node_modules). Is app.js located under home/dave/src/server/? If not and you want to use the module from any directory, you need to install it globally using npm install -g.
I usually install most packages locally so that they get checked in...
How to secure database passwords in PHP?
When a PHP application makes a database connection it of course generally needs to pass a login and password. If I'm using a single, minimum-permission login for my application, then the PHP needs to know that login and password somewhere. What is the best way to secure that password? It seems like ...
Android OpenGL ES and 2D
...t the very basic GLSurfaceView samples/demos.
Start, by setting up your app activity, and set up the basic canvas.
Take a loot at the replica island source code file: GameRenderer.java for how to setup your canvas with the proper GL flags for 2D (sprite) rendering.
You should really take a look ...
How is Racket different from Scheme?
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@Zorf It can easily be changed by overloading #%app, though: #lang racket (require (rename-in racket [#%app old])) (define-syntax #%app (syntax-rules () [(_) '()] [(_ . rest) (old . rest)])) (null? ()) ;; => #t
– Suzanne Dupéron
N...
How to enable CORS in AngularJs
... Why is it that I can get a response from https://www.google.com using an application like POSTMAN, but when I try to GET from https://www.google.com using an AJAX call I get the CORS error? Is there no way I can make the AJAX call behave similarly to the call from POSTMAN?
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Adding a favicon to a static HTML page
...t have more than 10 images in the correct sizes and formats.
I created an App (faviconit.com) so people don´t have to create all these images and the correct tags by hand.
Hope you like it.
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