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Clean ways to write multiple 'for' loops

For an array with multiple dimensions, we usually need to write a for loop for each of its dimensions. For example: 16 An...
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How to update Python?

I have version 2.7 installed from early 2012. I can't find any consensus on whether I should completely uninstall and wipe this version before putting on the latest version. ...
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How should one use std::optional?

I'm reading the documentation of std::experimental::optional and I have a good idea about what it does, but I don't understand when I should use it or how I should use it. The site doesn't contain any examples as of yet which leaves it harder for me to grasp the true concept of this object. When...
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Scalar vs. primitive data type - are they the same thing?

In various articles I have read, there are sometimes references to primitive data types and sometimes there are references to scalars. ...
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How to write log base(2) in c/c++

... Simple math:     log2 (x) = logy (x) / logy (2) where y can be anything, which for standard log functions is either 10 or e. share | ...
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SignalR - Sending a message to a specific user using (IUserIdProvider) *NEW 2.0.0*

In the latest version of Asp.Net SignalR, was added a new way of sending a message to a specific user, using the interface "IUserIdProvider". ...
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ImportError: numpy.core.multiarray failed to import

I'm trying to run this program 26 Answers 26 ...
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Comparing two collections for equality irrespective of the order of items in them

I would like to compare two collections (in C#), but I'm not sure of the best way to implement this efficiently. 19 Answers...
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PDO Prepared Inserts multiple rows in single query

I am currently using this type of SQL on MySQL to insert multiple rows of values in one single query: 22 Answers ...
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How to remove the underline for anchors(links)?

... Use CSS. this removes underlines from a and u elements: a, u { text-decoration: none; } Sometimes you need to override other styles for elements, in which case you can use the !important modifier on your rule: a { text-decoration...