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Python - abs vs fabs

... math.fabs() converts its argument to float if it can (if it can't, it throws an exception). It then takes the absolute value, and returns the result as a float. In addition to floats, abs() also works with integers and complex numbers. Its return type depends on the t...
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What happens if you static_cast invalid value to enum class?

...ct 1766. The [expr.static.cast]p10 paragraph has been strengthened, so you now can invoke UB if you cast a value that is outside the representable range of an enum to the enum type. This still doesn't apply to the scenario in the question, since data[0] is of the underlying type of the enumeration (...
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How to add an extra column to a NumPy array

... @Ay0 Exactly, I was looking for a way to add a bias unit to my artificial neuronal network in batch on all layers at once, and this is the perfect answer. – gaborous Aug 18 '16 at 15:07 ...
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How do I pass command line arguments to a Node.js program?

... You can also access a single argument when you know its position: process.argv[n] where n is the zero-based index – Luca Steeb Feb 1 '15 at 15:12 ...
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How do I remove duplicate items from an array in Perl?

...filtered = uniq(@array); print "@filtered\n"; Outputs: one two three If you want to use a module, try the uniq function from List::MoreUtils share | improve this answer | ...
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How to get orientation-dependent height and width of the screen?

...imple call [UIApplication currentSize]. Also, I ran the above code, so I know it works and reports back the correct responses in all orientations. Note that I factor in the status bar. Interestingly I had to subtract the MIN of the status bar's height and width. Hope this helps. :D Other thoug...
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What is the difference between Python's list methods append and extend?

What's the difference between the list methods append() and extend() ? 20 Answers 2...
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wget/curl large file from google drive

... This one worked in July 2018! Remember to share the file and if you have the link as drive.google.com/open?id=FILE_ID just replace "open" with "uc" and simply gdown drive.google.com/uc?id=FILE_ID – simo23 Jul 25 '18 at 15:18 ...
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Using mixins vs components for code reuse in Facebook React

... Update: this answer is outdated. Stay away from the mixins if you can. I warned you! Mixins Are Dead. Long Live Composition At first, I tried to use subcomponents for this and extract FormWidget and InputWidget. However, I abandoned this approach halfway because I wanted a be...
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What does -D_XOPEN_SOURCE do/mean?

...le without this arg. I checked the gcc man page, but did not find this specific option. I did find XOPEN_SOURCE , but there was little explanation of what it does. ...