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Which is faster in Python: x**.5 or math.sqrt(x)?
...(x) is always faster than x**.5 on another machine (Ubuntu, Python 2.6 and 3.1):
$ python -mtimeit -s"from math import sqrt; x = 123" "x**.5"
10000000 loops, best of 3: 0.173 usec per loop
$ python -mtimeit -s"from math import sqrt; x = 123" "sqrt(x)"
10000000 loops, best of 3: 0.115 usec per loop
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Change IPython/Jupyter notebook working directory
... Notice that this solution must be slightly changed with Ipython 3.1 as --pylab is not supported any longer. instead of ipython notebook "--pylab inline" write "ipython notebook"
– tagoma
Apr 5 '15 at 13:25
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Get Folder Size from Windows Command Line
...\dotnet
140,67 C:\my\Tools\vscode
97,33 C:\my\Tools\apache-jmeter-3.1
54,39 C:\my\Tools\mongoadmin
47,89 C:\my\Tools\Python27
35,22 C:\my\Tools\robomongo
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Understanding REST: Verbs, error codes, and authentication
...roprietary status code extensions. So you might see a response like:
HTTP/1.1 404 Not Found
X-Status-Extended: 404.3 More Specific Error Here
That way a HTTP client like a web browser will still know what to do with the regular 404 code, and a more sophisticated HTTP client can choose to look...
Getting Java version at runtime
...
but soon we will have version 1.1 again... or maybe instead of 1.10 we start with 2.0 [:-)
– user85421
Aug 4 '16 at 11:27
7
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Check if all elements in a list are identical
... | | | | |
| s7 | 3.1 usec | 1.4 usec | 1.24 usec | 0.932 usec | 1.92 usec |
| s8 | 4.07 usec | 1.54 usec | 1.28 usec | 0.997 usec | 1.79 usec |
| s9 | 5.91 usec | 1.25 usec | 0.749 usec | 0.407 usec ...
App Inventor 2 云数据库配置教程 - Firebase/云数据库1/自建后台 · App Inventor 2 中文网
... 三、Firebase数据库1 —— Google实时数据库
3.1 简介
3.2 Firebase项目创建
3.3 在App Inventor中配置FirebaseDB
3.4 Firebase安全规则配置
3.5 数据读写积木块操作
存储数据
...
Is it possible to make the -init method private in Objective-C?
...r version or switches? (I'm just using the default gcc switches with XCode 3.1)
– philsquared
Feb 17 '09 at 13:37
3
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Sort Dictionary by keys
...y by VALUES
let sortedYourArray = YOURDICTIONARY.sorted( by: { $0.1 < $1.1 })
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How can I efficiently select a Standard Library container in C++11?
...rdered associative container
Otherwise, jump to the question 2.
Question 1.1: Ordered ?
If you do not need a specific order, use an unordered_ container, otherwise use its traditional ordered counterpart.
Question 1.2: Separate Key ?
If the key is separate from the value, use a map, otherwis...