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Bitwise operation and usage

...bit at a time. AND is 1 only if both of its inputs are 1, otherwise it's 0. OR is 1 if one or both of its inputs are 1, otherwise it's 0. XOR is 1 only if exactly one of its inputs are 1, otherwise it's 0. NOT is 1 only if its input is 0, otherwise it's 0. These can often be best shown as truth ...
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How do I get a human-readable file size in bytes abbreviation using .NET?

...MB", "GB", "TB" }; double len = new FileInfo(filename).Length; int order = 0; while (len >= 1024 && order < sizes.Length - 1) { order++; len = len/1024; } // Adjust the format string to your preferences. For example "{0:0.#}{1}" would // show a single decimal place, and no spa...
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Delete the first three rows of a dataframe in pandas

... | edited Oct 17 '18 at 1:06 Acumenus 35.7k1111 gold badges9999 silver badges9494 bronze badges answered...
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Are Javascript arrays sparse?

... 40 How exactly JavaScript arrays are implemented differs from browser to browser, but they generall...
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Convert NaN to 0 in javascript

Is there a way to convert NaN values to 0 without an if statement: 11 Answers 11 ...
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Could not load file or assembly 'Newtonsoft.Json' or one of its dependencies. Manifest definition do

...embly> <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" /> <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" /> </dependentAssembly> If you want to ensure all your Newtonsoft.Json packages are the same vers...
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Lost connection to MySQL server at 'reading initial communication packet', system error: 0

... 107 Someone here suggests that it might be a firewall problem: I have just had this problem and...
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Combine two columns of text in pandas dataframe

I have a 20 x 4000 dataframe in Python using pandas. Two of these columns are named Year and quarter . I'd like to create a variable called period that makes Year = 2000 and quarter= q2 into 2000q2 . ...
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How to use hex color values

...f, green ff and blue ff. You can write hexadecimal notation in Swift using 0x prefix, e.g 0xFF To simplify the conversion, let's create an initializer that takes integer (0 - 255) values: extension UIColor { convenience init(red: Int, green: Int, blue: Int) { assert(red >= 0 &&amp...
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How to compute the similarity between two text documents?

... 10 Answers 10 Active ...