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How do I upgrade my ruby 1.9.2-p0 to the latest patch level using rvm?
My current version of ruby is ruby 1.9.2p0 (2010-08-18 revision 29036) [x86_64-darwin10.5.0] but I want to update it to the latest patch level using rvm. How can I do this?
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Why are these numbers not equal?
...entist Should Know About Floating-point Arithmetic," ACM Computing Surveys 23, 1 (1991-03), 5-48 doi>10.1145/103162.103163 (revision also available)
The Floating-Point Guide - What Every Programmer Should Know About Floating-Point Arithmetic
0.30000000000000004.com compares floating point arithme...
Error to install Nokogiri on OSX 10.9 Maverick?
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245
You can also install Nokogiri on Mac OS X 10.9 Mavericks with full XCode Install using:
gem i...
Insert an element at a specific index in a list and return the updated list
...can do b = a[:index] + [obj] + a[index:].
However, another way is:
a = [1, 2, 4]
b = a[:]
b.insert(2, 3)
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Find the most frequent number in a numpy vector
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How to check the version before installing a package using apt-get?
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329
OK, I found it.
apt-cache policy <package name> will show the version details.
It also sh...
Reduce, fold or scan (Left/Right)?
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372
In general, all 6 fold functions apply a binary operator to each element of a collection. The re...
Python 3.x rounding behavior
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Python 3's way (called "round half to even" or "banker's rounding") is considered the standard r...
Eclipse RCP Plug-in开发自学教程（Eclipse3.6） - 文档下载 - 清泛网 - ...
...受益，也希望大家能有版本意识，转载时注明来自salever@126.com。
之前有一套基于Eclipse3.3版本的教程，也是本人整理，由于本人的疏忽，导致网络上的版本各不相同，但分享已久，无法改变，希望大家谅解并使用新版本的教程...