大约有 1,400 项符合查询结果（耗时：0.0168秒） [XML]
How do you get the magnitude of a vector in Numpy?
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numpy.linalg.norm contains safeguards against overflow that this implementation skips. For instance, try computing the norm of [1e200, 1e200]. There is a reason if it is slower...
– Federico Poloni
May 9 '18 ...
how do I make a single legend for many subplots with matplotlib?
...iable to put in the argument for legend ?
– patapouf_ai
Apr 10 '17 at 12:51
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@patapouf_ai lines ...
Add custom icons to font awesome
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Hi, I have generated font icons with a folder containing svg icons. But later i want to add a single icon to that , Is it possible to add ? or again i have to generate with the folder?.
– Varadha31590
Mar 3 '16 at 12:24
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Facebook database design?
...e to benchmark it yourself. I've done some benchmarking with 10k users and 2.5 million friendship connections and the result was disappointing. If you run a small community it will work fine but there are performance issues to consider.
– burzum
Mar 21 '15 at 9...
What is the best way to detect a mobile device?
...f(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|ipad|iris|kindle|Android|Silk|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|wind...
how to check the dtype of a column in python pandas
...ataFrame({'bool' :[False, True], 'int64':[-1,2], 'int32':[-1,2],'float': [-2.5, 3.4],
'compl':np.array([1-1j, 5]),
'dt' :[pd.Timestamp('2013-01-02'), pd.Timestamp('2016-10-20')],
'td' :[pd.Timestamp('2012-03-02')- pd.Timestamp('2016-...
How to get current path with query string using Capybara
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As of Capybara 2.5, this is no longer the best answer. See @tom-walpole's answer below.
– dkniffin
Aug 25 '16 at 15:43
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How does Dijkstra's Algorithm and A-Star compare?
I was looking at what the guys in the Mario AI Competition have been doing and some of them have built some pretty neat Mario bots utilizing the A* (A-Star) Pathing Algorithm.
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Android微信智能心跳方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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2.5Line、WhatsApp、微信Push策略的优点
a）微信：当前心跳间隔比竞品短，所以微信在新消息提醒上会最及时。
b）使用GCM：Line和WhatsApp使用GCM策略的最大优点就是省电，以...
Understanding generators in Python
...ent, and it can execute more code and return another value.
Before Python 2.5 this was all generators did. Python 2.5 added the ability to pass values back in to the generator as well. In doing so, the passed-in value is available as an expression resulting from the yield statement which had temp...