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Zip lists in Python
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When you zip() together three lists containing 20 elements each, the result has twenty elements. Each element is a three-tuple.
See for yourself:
In [1]: a = b = c = range(20)
In [2]: zip(a, b, c)
Out[2]:
[(0, 0, 0),
(1, 1, 1),
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(17, 17, 17),
(18, 18, 18...
Statistics: combinations in Python
...ersions of scipy). When exact is False, it uses the gammaln function to obtain good precision without taking much time. In the exact case it returns an arbitrary-precision integer, which might take a long time to compute.
sh...
How to get back to most recent version in Git?
... @Nathan: In git a branch is really mostly a movable pointer to a certain revision. So conceptually, you're sort of creating a branch, but not in the sense that git thinks of branches.
– DLH
Aug 24 '10 at 17:26
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转型产品经理必看 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...一次明确的知道这个概念的含义应该是在2011年，那一年智能手机开始兴起，印象很深刻，那一年的Android系统还是在1.x到2.x的升级中，那一年的iPhone对我来说还是个遥远的奢侈品。也是在那一年，我开始学习Android开发到后来学习...
What does collation mean?
... @Piskvor: aren't coordinates in your info pointing to a certain country using an alphabet with 42 letters, 15 of them having diacritics?
– Quassnoi
Dec 27 '10 at 13:07
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When should I use genetic algorithms as opposed to neural networks? [closed]
...e useful for recognizing patterns. They follow a simplistic model of the brain, and by changing a number of weights between them, attempt to predict outputs based on inputs.
They are two fundamentally different entities, but sometimes the problems they are capable of solving overlap.
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SVG图像加载扩展 - 第三方扩展集合 · App Inventor 2 中文网
... 各版本对比 App上架指南 入门必读 IoT专题 AI2拓展 Aia Store 关于 关于我们 发布日志 服务条款 搜索 ...
R command for setting working directory to source file location in Rstudio
I am working out some tutorials in R. Each R code is contained in a specific folder. There are data files and other files in there. I want to open the .r file and source it such that I do not have to change the working directory in Rstudio as shown below:
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Action bar navigation modes are deprecated in Android L
... the Google provided examples SlidingTabsBasic or SlidingTabsColors as explained in this Dev Bytes video.
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Horizontal ListView in Android?
...ith LayoutManager are fixed by google. code.google.com/p/android/issues/detail?id=74772
– Ponsuyambu Velladurai
Jun 15 '15 at 17:53
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