Updated README

README.md

@@ -3,26 +3,96 @@ Elementary Algorithms
 
 Edition: 0.6180339887498949
 
-2018, Aug, 25
+2020/10
 
-AlgoXY is an open book about elementary
-algorithms and data structures. This book doesn't only focus on
-imperative (or procedural) approach, but also includes purely functional
-algorithms and data structures.
+This book introduces about elementary algorithms and data structure. It includes side-by-side comparison about purely functional realization and their imperative counterpart.
 
-The PDF version in English can be downloaded from [github](https://github.com/liuxinyu95/AlgoXY/releases/download/v0.6180333/elementary-algorithms.pdf).
+<img src="https://file.ituring.com.cn/ScreenShow/01004d1e213e7f854b92" width="400">
 
-The book in Chinese was published.
-http://www.ituring.com.cn/book/1907
+Contents
+--------
 
-[Errata and Exercise](https://github.com/liuxinyu95/AlgoXY/wiki/Preface) can be found in github WIKI.
+The book can be downloaded in English ([EN](https://github.com/liuxinyu95/AlgoXY/releases/download/v0.6180333/elementary-algorithms.pdf)). The book in Chinese ([中文](http://www.ituring.com.cn/book/1907)) was published. I recently switched my focus to the Mathematics of programming, the new book is also available in ([github](https://github.com/liuxinyu95/unplugged))
 
-Compared to the pdf, the published version contains many important corrections to the contents, equations, and figures.
 
-The original version provides examples in Haskell, C/C++, Python, and Scheme. I started A new branch jvm to provide examples in Java and Scala.
+- Preface
+- Chapter 1, Binary Search Tree, the 'hello world' data structure;
+- Chapter 2, The evolution of insertion sort;
+- Chapter 3, Red-black tree, not so complex as it was thought;
+- Chapter 4, AVL tree;
+- Chapter 5, Radix tree, Trie and Prefix Tree;
+- Chapter 6, B-Trees;
+- Chapter 7, Binary Heaps;
+- Chapter 8, From grape to the world cup, the evolution of selection sort;
+- Chapter 9, Binomial heap, Fibonacci heap, and pairing heap;
+- Chapter 10, Queue, not so simple as it was thought;
+- Chapter 11, Sequences, The last brick;
+- Chapter 12, Divide and conquer, Quick sort vs. Merge sort
+- Chapter 13, Searching
+- Appendix
+
+Install
+--------
+
+To build the book in PDF format from the sources, you need
+the following software pre-installed.
+
+- TeXLive, The book is built with XeLaTeX, a Unicode friendly version of TeX;
+
+### Install TeXLive
+
+In Debian/Ubuntu like Linux environment, do **NOT** install the TeXLive through apt-get. Go to TeXLive [official site](https://tug.org/texlive/) to download the setup script.
+
+```bash
+$ wget http://mirror.ctan.org/systems/texlive/tlnet/install-tl.zip
+$ unzip install-tl.zip
+$ cd install-tl
+$ sudo ./install-tl -gui text -repository http://mirror.ctan.org/systems/texlive/tlnet
+```
+
+In Windows, TeXLive provide a [gui based installer](https://tug.org/texlive/), in Mac OS X, there's a [MacTeX](https://www.tug.org/mactex/).
+
+### Install ImageMagick and Graphviz
+
+```bash
+$ sudo apt-get install imagemagick
+$ sudo apt-get install graphviz
+```
+
+For Windows and Mac OS X installer, ImageMagick can be download through http://www.imagemagick.org; Graphviz can be download from: http://graphviz.org
+
+### Others
+
+You need the GNU make tool, in Debian/Ubuntu like Linux, it can be installed through the apt-get command:
+
+```bash
+$ sudo apt-get install build-essential
+```
+
+In Windows, you can install the MSYS for it. In Mac OS X, please install the developer tool from this command line:
+
+```bash
+$ xcode-select --install
+```
+
+### Build the book PDF
+
+enter the folder contains the book TeX manuscript, run
+
+```bash
+$ make
+```
+
+This will generate algoxy-en.pdf and algoxy-zh-cn.pdf. If you only need the Chinese version for example, you can run `make cn` instead.
+
+### Other branches
+
+The other two branches, `zh-cn' and `jvm' are deprecated. Please do NOT checkout/track them.
 
 --
 
-Larry LIU Xinyu
+LIU Xinyu
 
 [email protected]
+
+``Cogito ergo sum''