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how does multiplication differ for NumPy Matrix vs Array classes?
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The main reason to avoid using the matrix class is that a) it's inherently 2-dimensional, and b) there's additional overhead compared to a "normal" numpy array. If all you're doing is linear algebra, then by all means, feel free t...
使用App Inventor扩展实现多点触控：Scale Detector · App Inventor 2 中文网
...可以按照下面的第 1 部分加载提供的源文件 ScaleGestureDemo.aia 来构建演示源应用程序。 要构建应用程序，你需要使用位于 http://extension-test.appinventor.mit.edu 的 App Inventor 测试服务器。 你还需要使用与该实例对应的 AI Companion。 连接...
Comparison of Lucene Analyzers
...hing like ["i", "be", "veri", "happi"] produced, and for French "Je suis très heureux" some kind of French analyzer (like SnowballAnalyzer, initialized with "French") will produce ["je", "être", "tre", "heur"]. Of course, if you will use analyzer of one language to stem text in another, rules from...
How can I find out if I have Xcode commandline tools installed?
...since /usr/bin is usually in your PATH.
– Samuel Lelièvre
Jul 25 at 19:18
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What is scope/named_scope in rails?
...ed Feb 2 '11 at 2:17
Michael SchäfermeyerMichael Schäfermeyer
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C++11 std::threads vs posix threads
...hat can be avoided for most applications.
– Erik Alapää
Aug 24 '16 at 8:00
Also, std::thread brings type safety that...
How to remove the first character of string in PHP?
How to use PHP , Remove the first character :
13 Answers
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What are the differences between Deferred, Promise and Future in JavaScript?
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@MartinKällman You're right! I hadn't revisited this in a while and have learned a bit. I'll post a separate answer below, but leave this since people seem to have benefited from the usage example.
– fncomp
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How to enable C++11/C++0x support in Eclipse CDT?
...ke the accepted answer more complete.
– Inusable Lumière
Nov 27 '13 at 15:45
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ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...处理请求的工作者失败或者可能整体拓扑由于网络失效而离线 。这种情况下，客户端将永远卡在这儿，来等待从来不会出现的应答。
为了解决这个问题，客户端可以等待特定数量的时间，如果到那...