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What does glLoadIdentity() do in OpenGL?

I'm new to OpenGL and I'm a little overwhelmed with all of the random functions that I have in my code. They work and I know when to use them, but I don't know why I need them or what they actually do. ...
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Are Java static calls more or less expensive than non-static calls?

...e any difference. Hotspot may choose to optimize in ways that make static calls faster for one method, non-static calls faster for another. Third: much of the mythos surrounding static versus non-static are based either on very old JVMs (which did not do anywhere near the optimization that Hotspot ...
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Why can't R's ifelse statements return vectors?

... is a common confusion, because of the function's name, to use this when really you want just a normal if () {} else {} construction instead. share | improve this answer | fo...
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How to create your own library for Android development to be used in every program you write?

...e the same android library project, are two copies of the same library installed when both apps are installed on the same phone? – enigmaticPhysicist Jul 5 '14 at 7:36 ...
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What is Clojure useful for? [closed]

...ing around with OpenGL Writing async webservers HTML Templating Running parallel tasks (fetching multiple URLs and process in parallel) Playing around with real time audio Simulations That's the practical / fun stuff. But Clojure has plenty of theoretical depth as well. Ideas that will become inc...
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Get protocol + host name from URL

...gt;> url.split("//")[-1].split("/")[0].split('?')[0] 'foo.bar' That's all, folks. share | improve this answer | follow | ...
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AngularJS ng-if with multiple conditions

... If I have 20 input fields and I have to enable submit button only if all fields are filled. In this case, I have to include so many conditions. This is little bit confusing. Is there any other feasible solution? – Mr_Perfect Dec 2 '16 at 5:14 ...
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ImportError: No module named site on Windows

I am trying to install Python for the first time. I downloaded the following installer from the Python website: Python 2.7.1 Windows Installer (Windows binary -- does not include source) . I then ran the installer, selected 'All Users' and all was fine. I installed Python into the default location:...
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Bootstrap Alert Auto Close

My need is to call alert when I click on Add to Wishlist button and should disappear the alert in 2 secs. This is how I tried, but the alert is disappearing instantly as soon as it is appearing. Not sure, where the bug is.. Can anyone help me out? ...
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Java: function for arrays like PHP's join()?

... This is clearly the best answer for all Android versions, as Java 8 is only coming out on Android in a bit. This solution uses the built in Android libs, rather than these silly "include a huge lib to perform one action" solutions. – LukeS...