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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已经不见，不要怀念

忽然间想起来，某人有某个博客，似乎已经好久好久没有更新了。今天登上去，发现，最后一篇已经滞留在几年之前。

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playing Node.js: 1. basic concepts

These days, I wanna have a look at the hot and smart technology: Node.js. So I’d like to make some notes and share some useful resources.

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playing R: useful packages

R is an useful software for statistical computing. And it has a package system, which enables users to install many interesting and useful packages. Here I note and recommend some.

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playing R: importing data

It’s quite important to acquire, deal with and import data for statisticso work. Here is some notes about acquiring and importing data in R. This post may be updated frequently.

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关于三质点同时碰撞问题的一组特解

关于三质点同时碰撞问题的一组特解

摘要

在低速运动力学下，两已知质量与初速度的质点完全弹性碰撞后的动能，动量情况已经被完整的研究并且得到解释解。但是，三个已知质量与初速度的质点同时碰撞后的动能动量情况依然没被研究清楚。本论文提出一种解决思路并且给出一组简单情况下的特解。

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never use Hackintosh

Never use Hackintosh. After many frustracted experiences, I had to believe the fact.

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