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What does |= (single pipe equal) and &=(single ampersand equal) mean

...gnment operators, translating (very loosely) x |= y; into x = x | y; and the same for &. There's a bit more detail in a few cases regarding an implicit cast, and the target variable is only evaluated once, but that's basically the gist of it. In terms of the non-compound operators, & ...
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Why must a nonlinear activation function be used in a backpropagation neural network? [closed]

I've been reading some things on neural networks and I understand the general principle of a single layer neural network. I understand the need for aditional layers, but why are nonlinear activation functions used? ...
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How to quickly clear a JavaScript Object?

... Some companies have to support IE6 as a matter of policy - and will while it enjoys double-digit market share. The IE GC issue isn't that things go uncollected, it's that collection runs every X allocations, and takes longer each time. Thus the need to reuse objects. ...
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Disable mouse scroll wheel zoom on embedded Google Maps

...st solution to this problem yet! We been facing this issue for a long time and this makes for a nice and pretty clean reusable fix! – Diego Paladino Aug 5 '14 at 5:47 11 ...
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Why not inherit from List?

... is to say, "to the human mind") is just a list of things with a few bells and whistles? Ask any ten non-computer-programmer people who are familiar with the existence of football to fill in the blank: A football team is a particular kind of _____ Did anyone say "list of football players wit...
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git: Your branch is ahead by X commits

...ng a repository on google code. Then I cloned this repository on my laptop and I do work there and push the changes, laptop => code.google. I used to get this message on my server where I had created a clone of code.google code repository and I used to pull the changes. I think fetch is required ...
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Rotating a two-dimensional array in Python

... answered Dec 7 '11 at 19:43 Andrew ClarkAndrew Clark 171k2525 gold badges236236 silver badges278278 bronze badges ...
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git: abort commit in the middle of typing message

.... If you previously saved the file to its original path, delete everything and write the empty file first (an empty commit message will abort the commit). Now, when you're ready to commit "for reals", use the message file you saved at the alternate path. Alternately, copy the commit message into o...
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Unable to generate an explicit migration in entity framework

... It tells you that there is some unprocessed migration in your application and it requires running Update-Database before you can add another migration. share | improve this answer | ...
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How to run functions in parallel?

I researched first and couldn't find an answer to my question. I am trying to run multiple functions in parallel in Python. ...