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What is the iBeacon Bluetooth Profile
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228
For an iBeacon with ProximityUUID E2C56DB5-DFFB-48D2-B060-D0F5A71096E0, major 0, minor 0, and ...
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本文档最初由米尔斯学院（Mills College）的 Kate Feeney 为 AI Classic 编写。该计...
Integer division with remainder in JavaScript?
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edited Feb 21 '17 at 8:50
bluish
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Debugging in Clojure? [closed]
...selected functions.
(use 'clojure.contrib.trace)
(defn fib[n] (if (< n 2) n (+ (fib (- n 1)) (fib (- n 2)))))
(dotrace [fib] (fib 3))
produces the output:
TRACE t4425: (fib 3)
TRACE t4426: | (fib 2)
TRACE t4427: | | (fib 1)
TRACE t4427: | | => 1
TRACE t4428: | | (fib 0...
Is there a way to pass optional parameters to a function?
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The Python 2 documentation, 7.6. Function definitions gives you a couple of ways to detect whether a caller supplied an optional parameter.
First, you can use special formal parameter syntax *. If the function definition has a formal p...
Pointers in C: when to use the ampersand and the asterisk?
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622
You have pointers and values:
int* p; // variable p is pointer to integer type
int i; // integ...
Too much data with var_dump in symfony2 doctrine2
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Replace var_dump() with the debug method dump() provided by Doctrine Common.
\Doctrine\Common...
Benchmarking (python vs. c++ using BLAS) and (numpy)
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jfsjfs
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List comprehension vs map
...n map needs a lambda:
$ python -mtimeit -s'xs=range(10)' 'map(lambda x: x+2, xs)'
100000 loops, best of 3: 4.24 usec per loop
$ python -mtimeit -s'xs=range(10)' '[x+2 for x in xs]'
100000 loops, best of 3: 2.32 usec per loop
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Format output string, right alignment
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232
Try this approach using the newer str.format syntax:
line_new = '{:>12} {:>12} {:>...