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Why do Lua arrays(tables) start at 1 instead of 0?
...ionale behind the decision of this part of Lua. Why does indexing start at 1? I have read (as many others did) this great paper . It seems to me a strange corner of a language that is very pleasant to learn and program. Don't get me wrong, Lua is just great but there has to be an explanation somewh...
How to show all shared libraries used by executables in Linux?
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How can I setup & run PhantomJS on Ubuntu?
...ntomJS and recorded it to video: https://www.dailymotion.com/video/xnizmh_1_webcam
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Dynamically select data frame columns using $ and a character value
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You can't do that kind of subsetting with $. In the source code (R/src/main/subset.c) it state...
How to assign from a function which returns more than one value?
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How do I represent a hextile/hex grid in memory?
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Amit Patel has posted an amazing page on this topic. It's so comprehensive and wonderful that ...
Convert RGB to RGBA over white
I have a hex color, e.g. #F4F8FB (or rgb(244, 248, 251) ) that I want converted into an as-transparent-as-possible rgba color (when displayed over white). Make sense? I'm looking for an algorithm, or at least idea of an algorithm for how to do so.
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项目管理实践教程一、工欲善其事，必先利其器【Basic Tools】 - 项目管理 -...
...首先安装一些必须的软件，主要有下面的4个，其中软件1和2使用在服务器机上，软件3和4安装在客户端机上。另外，我们还有用到MSBui 今天，我们首先安装一些必须的软件，主要有下面的4个，其中软件1和2使用在服务器机上，...
Rotating a two-dimensional array in Python
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Consider the following two-dimensional list:
original = [[1, 2],
[3, 4]]
Lets break it down step by step:
>>> original[::-1] # elements of original are reversed
[[3, 4], [1, 2]]
This list is passed into zip() using argument unpacking, so the zip call ends...