some LaTeX notes

Here are some notes for LaTeX. All from a guy’s blog: 始终.

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Alternative to Mathematica

Mathematica is a great solution to some computing problems. However it has only one disadvantage: it is very expensive. Any other way to avoid the fee? No, I am not talking about swithching to R, Python, etc.

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my English experience

I began learning English at age of 10 in primary school. However, it is in 2005 that I fell in love with English and realized its importance in my life.

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Dual Thrust Trading

Dual Thrust is a very simple but seemly effective strategy in quantitative investment.

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极简 R 包建立方法

前言

最近想试一下捣腾一个 R 包出来,故参考了一些教程。现在看到的最好的就是谢益辉大大之前写过的开发R程序包之忍者篇,以及 Hadley 大神(ggplot2 devtools 等一系列包的作者)的 教程。但是前者有一些过时,后者是全英文的,所以我这里记录一下比较简单的过程,给读者们一个参考思路。如果你有一些 R 程序,想塞到去一个自创的 R 包中,那么这篇文章就可能是你想要的。为了方便说明,这里用我的包来进行示例。

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use CrunchBang

experience

My Hackintosh crashed a few days before. What’s worse, I couldn’t install OS X 10.9 Maverick any more because some wired stuff! :-( So in case I want to do something relative with *nix, I wanna install a desktop Linux now. And for safe, I am installing it in a virtual machine firstly.

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Skype 使用记

Skype 是一个经典的网络电话服务。

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Almost All Poems In High School

找回高中的笔记本,然后把其中不错的诗词整理出来了。有诗词有对联。

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preferring Mac OS X

At last, I installed Mac OS X Mountain Lion 10.8.3 in my Thinkpad T410, though I thought never using hackintosh before. I am getting used to OS X and considering transferring all my working flow into OS X now.

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空山不见人

也算是开始放寒假了,开始有一段比较“长”的时间住在家里。

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