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Android accelerometer accuracy (Inertial navigation)
I was looking into implementing an Inertial Navigation System for an Android phone, which I realise is hard given the accelerometer accuracy, and constant fluctuation of readings.
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What is the curiously recurring template pattern (CRTP)?
...ts specialization for any type X will be inherited from singleton<X> and thus will have all its (public, protected) members accessible, including the GetInstance! There are other useful uses of CRTP. For example, if you want to count all instances that currently exist for your class, but want ...
adding header to python requests module
...ith your headers (key: value pairs where the key is the name of the header and the value is, well, the value of the pair) and pass that dict to the headers parameter on the .get or .post method.
So more specific to your question:
headers = {'foobar': 'raboof'}
requests.get('http://himom.com', head...
Convert Linq Query Result to Dictionary
... ignore the incomming rows.
I'd like to keep the trafic between the client and the DB server as low as possible and minimize the number of queries.
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Determine if a function exists in bash
...t tests which are executed from bash. Unit tests are initialized, executed and cleaned up in a bash script. This script usualy contains an init(), execute() and cleanup() functions. But they are not mandatory. I'd like to test if they are or are not defined.
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How to define “type disjunction” (union types)?
...: String => println("str")
case _: Int => println("int")
}
}
And that's it. You can call foo(5) or foo("abc"), and it will work, but try foo(true) and it will fail. This could be side-stepped by the client code by creating a StringOrInt[Boolean], unless, as noted by Randall below, you ...
convert a char* to std::string
...ing str(s);
Note that this construct deep copies the character list at s and s should not be nullptr, or else behavior is undefined.
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Using awk to print all columns from the nth to the last
...proach. no need to use cat though, just put the filename after the awk command.
– kon
Jun 5 '13 at 10:16
50
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Any gotchas using unicode_literals in Python 2.6?
...f-8 encoded string (not unicode) since it did not import unicode_literals, and one.name is an unicode string. When you mix both, python tries to decode the encoded string (assuming it's ascii) and convert it to unicode and fails. It would work if you did print name + two.name.decode('utf-8').
The s...
How do I join two lines in vi?
... by pressing "J" at any place in the line you can combine the current line and the next line in the way you want.
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