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What does the Ellipsis object do?
... object that can appear in slice notation. For example:
myList[1:2, ..., 0]
Its interpretation is purely up to whatever implements the __getitem__ function and sees Ellipsis objects there, but its main (and intended) use is in the numpy third-party library, which adds a multidimensional array ty...
How do I obtain the frequencies of each value in an FFT?
...
The first bin in the FFT is DC (0 Hz), the second bin is Fs / N, where Fs is the sample rate and N is the size of the FFT. The next bin is 2 * Fs / N. To express this in general terms, the nth bin is n * Fs / N.
So if your sample rate, Fs is say 44.1 kHz a...
定时浇灌控制台：综合应用案例 · App Inventor 2 中文网
...立设备档案并保存 Broker 参数。
连接控制器，填写 1–300 秒和操作说明，开始浇灌后显示等待；只有请求 ID、动作与秒数全部匹配的确认才记成功。
15 秒无有效确认记录状态未知。可再次发送停止，收到 OFF、0 的对应确认才...
What does “mro()” do?
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answered Jan 6 '10 at 3:17
Alex MartelliAlex Martelli
724k148148 gold badges11261126 silver badges13241324 bronze badges
...
When splitting an empty string in Python, why does split() return an empty list while split('\n') re
...ce. For example:
>>> data = '''\
Shasta California 14,200
McKinley Alaska 20,300
Fuji Japan 12,400
'''
>>> for line in data.splitlines():
print line.split()
['Shasta', 'California', '14,200']
['McKinley', 'Alaska', '20,300']
['Fuji', '...
string c_str() vs. data()
...
106
The documentation is correct. Use c_str() if you want a null terminated string.
If the impleme...
Read a text file using Node.js?
...
10
@fancy: try var lines = data.split(/\r?\n/);, then the array "lines" will have each line.
– maerics
F...
Requirejs domReady plugin vs Jquery $(document).ready()?
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+50
It seems like all the key points were already hit, but a few details fell through the cracks. Mainly:
domReady
It is both a plugin a...
Lua简明教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...你把他的源码下下来编译后，你会发现解释器居然不到200k，这是多么地变态啊（/bin/sh都要1M，MacOS平台），而且能和C语言非常好的互动。我很好奇得浏览了一下Lua解释器的源码，这可能是我看过最干净的C的源码了。
我不想写...
What's the difference between “version number” in iTunes Connect, “bundle version”, “bundle version
... |
edited Feb 21 '13 at 8:03
answered Sep 2 '11 at 8:58
Fab...