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What is a Context Free Grammar?
...y and then the Wikipedia entry on formal grammar, I am left utterly and totally befuddled. Would someone be so kind as to explain what these things are?
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Refresh all files in buffer from disk in vim
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bufdo e curiously leaves all the buffers un-syntax-highlighted
– Steven Lu
Jul 9 '13 at 23:03
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Swapping two variable value without using third variable
...ation, when one is set to 0, both are set to 0.
When both *x and *y are 0, all other xor operations on *x and *y will equal 0 (as they are the same), which means that the function will set both *x and *y set to 0.
If they have the same values but not the same memory location, everything works as ex...
javax vs java package
...rlier versions (which would be useful). Note from many years later: it actually ended up being in java after all.
I believe there are restrictions on the java package - I think classloaders are set up to only allow classes within java.* to be loaded from rt.jar or something similar. (There's certai...
How do you overcome the svn 'out of date' error?
...sions to download or update. It does something to the metadata, which magically fixes it.
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Laravel blank white screen
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@fideloper This answer really saved my day. Was getting WSOD, and nothing showing up in logs anywhere. chmodding the app/storage took care of it. I tip my virtual hat to you!
– Tim Habersack
Dec 23 '13 at 22:37
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How can I parse a string with a comma thousand separator to a number?
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May I suggest that we instead capture all commas by using: .replace(/,/g, '') This regex uses the global g to replace-all.
– gdibble
Aug 28 '15 at 4:59
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Nearest neighbors in high-dimensional data?
...ted in Approximate Nearest Neighbor (ANN) algorithms. The idea is that you allow the algorithm to return sufficiently near neighbors (perhaps not the nearest neighbor); in doing so, you reduce complexity. You mentioned the kd-tree; that is one example. But as you said, kd-tree works poorly in high d...
Apply formula to the entire column
I'm trying to recode all the zip code from Column A into Column B with the formula:
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Suppress Scientific Notation in Numpy When Creating Array From Nested List
...-printing-in-numpy.html
For SciPy.org numpy documentation, which includes all function parameters (suppress isn't detailed in the above link), see here: https://docs.scipy.org/doc/numpy/reference/generated/numpy.set_printoptions.html
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