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What's the difference between a single precision and double precision floating point operation?

..., cache, and bandwidth, thereby reducing the overall system performance. From Webopedia: The term double precision is something of a misnomer because the precision is not really double. The word double derives from the fact that a double-precision number uses twice as many bits as a regular ...
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Difference between abstraction and encapsulation?

.... The only thing that has to change is the compare function, which differs from data type to data type. qsort therefore expects the user to provide said compare function as a function argument. Encapsulation and abstraction go hand in hand so much so that you could make the point that they are tru...
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Java Byte Array to String to Byte Array

... You can't just take the returned string and construct a string from it... it's not a byte[] data type anymore, it's already a string; you need to parse it. For example : String response = "[-47, 1, 16, 84, 2, 101, 110, 83, 111, 109, 101, 32, 78, 70, 67, 32, 68, 97, 116, 97]"; // re...
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Pandas: drop a level from a multi-level column index?

... You can use MultiIndex.droplevel: >>> cols = pd.MultiIndex.from_tuples([("a", "b"), ("a", "c")]) >>> df = pd.DataFrame([[1,2], [3,4]], columns=cols) >>> df a b c 0 1 2 1 3 4 [2 rows x 2 columns] >>> df.columns = df.columns.droplevel() >&gt...
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What is the use of a private static variable in Java?

...f a variable is declared as public static varName; , then I can access it from anywhere as ClassName.varName . I am also aware that static members are shared by all instances of a class and are not reallocated in each instance. ...
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What does the “static” modifier after “import” mean?

...mport declaration. Where the normal import declaration imports classes from packages, allowing them to be used without package qualification, the static import declaration imports static members from classes, allowing them to be used without class qualification. So when should y...
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Why is jquery's .ajax() method not sending my session cookie?

...cript. This may be a Cross Domain Problem. Maybe you tried to call a url from www.domain-a.com while your calling script was on www.domain-b.com (In other words: You made a Cross Domain Call in which case the browser won't sent any cookies to protect your privacy). In this case your options are: ...
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Difference between Property and Field in C# 3.0+

...en a Field and a Property in C#? but my question has a slight difference (from my point of view): 10 Answers ...
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Why use AJAX when WebSockets is available?

...curity, parallelism, error handling, etc). Regarding performance, although from-scratch raw large file transfer speed would be similar, browsers have had years to finely tune caching of web content (much of which applies to AJAX requests) so in practice, switching from AJAX to WebSockets is unlikely...
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Camera access through browser

... nice dialogue for you to choose either to take a picture or to upload one from your album i.e. An example can be found here: Capturing camera/picture data without PhoneGap share | improve this a...