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Access denied for user 'root@localhost' (using password:NO)

I'm new to MySQL, I'm trying to run WordPress in my Windows desktop and it needs MySQL. 16 Answers ...
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How to make a element expand or contract to its parent container?

The goal is to have the <svg> element expand to the size of its parent container, in this case a <div> , no matter how big or small that container may be. ...
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Differences in boolean operators: & vs && and | vs ||

I know the rules for && and || but what are & and | ? Please explain these to me with an example. 11 Ans...
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How can I apply a function to every row/column of a matrix in MATLAB?

... Many built-in operations like sum and prod are already able to operate across rows or columns, so you may be able to refactor the function you are applying to take advantage of this. If that's not a viable option, one way to do it is to collect the rows or c...
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Convert datetime to Unix timestamp and convert it back in python

I have dt = datetime(2013,9,1,11) , and I would like to get a Unix timestamp of this datetime object. 11 Answers ...
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How to center canvas in html5

...center according to the size of the browser window. The canvas is 800x600. And if the window gets below 800x600, it should resize as well(but that's not very important at the moment) ...
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“ValueError: zero length field name in format” error in Python 3.0,3.1,3.2

I'm trying learn Python (3 to be more specific) and I'm getting this error: 3 Answers ...
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autolayout - make height of view relative to half superview height

have been getting into autolayouts recently and I'm stuck on what seems like a really trivial problem example. I have a view that I want to sit at the top of the screen, and take up half of the screen-height. Simple before autolayout - just tack it in place and tell it to expand vertically when the ...
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How do I break out of a loop in Scala?

...> sum+=i) (warning--this depends on details of how the takeWhile test and the foreach are interleaved during evaluation, and probably shouldn't be used in practice!). (1b) Use tail recursion instead of a for loop, taking advantage of how easy it is to write a new method in Scala: var sum = 0 ...
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Is there a library function for Root mean square error (RMSE) in python?

...lso known as MSE, RMD, or RMS. What problem does it solve? If you understand RMSE: (Root mean squared error), MSE: (Mean Squared Error) RMD (Root mean squared deviation) and RMS: (Root Mean Squared), then asking for a library to calculate this for you is unnecessary over-engineering. All these me...