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How can the Euclidean distance be calculated with NumPy?
...sive square roots. That'll be much faster. We can also improve in_range by converting it to a generator:
def in_range(origin, range, things):
range_sq = range**2
yield from (thing for thing in things
if distance_sq(origin, thing) <= range_sq)
This especially has benefit...
Are parameters in strings.xml possible? [duplicate]
In my Android app I'am going to implement my strings with internationalization. I have a problem with the grammar and the way sentences build in different languages.
...
Transactions in REST?
...playing with semantics to me; I'm uncomfortable with the nominalization of converting verbs into nouns to make it RESTful, "because it uses nouns (URIs) instead of verbs (RPC calls)". i.e. the noun "committed transaction resource" instead of the verb "commit this transaction". I guess one advantage...
What specific productivity gains do Vim/Emacs provide over GUI text editors?
...m gives you very specific and foolproof ways of setting file encodings and converting between them. The very first thing that impressed me about Vim is how perfectly it handles tab/space indentation options and Unix/DOS linebreaks compared to other editors that I had problems with at the time.
Man...
How do I use CREATE OR REPLACE?
Am I correct in understanding that CREATE OR REPLACE basically means "if the object exists, drop it, then create it either way?"
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How to iterate over the files of a certain directory, in Java? [duplicate]
...ectoryListing) {
// Do something with child
}
} else {
// Handle the case where dir is not really a directory.
// Checking dir.isDirectory() above would not be sufficient
// to avoid race conditions with another process that deletes
// directories.
}
...
Difference between __str__ and __repr__?
...
__repr__: representation of python object usually eval will convert it back to that object
__str__: is whatever you think is that object in text form
e.g.
>>> s="""w'o"w"""
>>> repr(s)
'\'w\\\'o"w\''
>>> str(s)
'w\'o"w'
>>> eval(str(s))==s
Traceb...
All permutations of a Windows license key
...*kwargs. When using format you can not pass the tuple directly but need to convert it to arguments first: map(lambda args: 'MPP6R-09RXG-2H{}MT-{}K{}M9-V{}C8R'.format(*args), product('8B', 'B8', 'HN', '6G')). I still use the old % string formatting a lot for sentimental reasons. I really should consi...
How do I give text or an image a transparent background using CSS?
... it easier to discern levels of hierarchy, and it's far easier to reliably convert tabs to spaces and so is a more-compatible form of all readers.
– Slipp D. Thompson
Feb 6 '16 at 11:07
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How many concurrent requests does a single Flask process receive?
...a single core has multiple execution units and an instruction decoder that converts the "machine code" seen from the software side into the actual hardware micro-ops that are dispatched to the individual execution units.
– Michael Geary
Aug 10 '19 at 17:23
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