Abstract: A Star Algorithm has been widely used in motion planning problems. This article will start from a real project to help you understand the A Star programing idea. It is nice because we will use PR2 in OpenRave as an example.

.bashrc 是用来给用户提供方便的。将你常用的packages引援到bashrc里面，这样每次打开一个新的Terminal的时候，他就知道你的东西都在哪里了。有点类似于一个快捷方式的列表。

Abstract: This introduction is a tip post for the coding beginners. You may not use GitHub as the server but it is always being nice to have your codes titled with a source control. Not only for somebody else but also yourself in the feature work.

一直对齐次坐标这个概念的理解不够彻底，只见大部分的书中说道“齐次坐标在仿射变换中非常的方便”，然后就没有了后文，今天在一个叫做“三百年 重生”的博客上看到一篇关于透视投影变换的探讨的文章，其中有对齐次坐标有非常精辟的说明，特别是针对这样一句话进行了有力的证明：

Abstract: Doing settings of installation is always a pain. My new class in motion planning requires us to install OpenRave 0.9 on Ubuntu 14.04 but unfortunately, there is no PPA for 0.9 version so that we need to compile it by our hands. I've spent a day to solve the dependencies problem and now ...

Intro: Morphology is used in image processing to reduce noise. This article shows some examples from Youtube to explain how the processing is working. 这是我在学习计算机视觉时，对遇到的问题进行研究所得出的结果。所以文中大部分的话都是在下自己的理解，如有错误还请大家原谅并指出。若是之后有遇到相似的...