core

expat lib and include files(expat lib)

共轭梯度法（Conjugate Gradient）是介于最速下降法与牛顿法之间的一个方法，它仅需利用一阶导数信息，但克服了最速下降法收敛慢的缺点，又避免了牛顿法需要存储和计算Hesse矩阵并求逆的缺点，共轭梯度法不仅是解决大型线性方程组最有用的方法之一，也是解大型非线性最优化最有效的算法之一。 在各种优化算法中，共轭梯度法是非常重要的一种。其优点是所需存储量小，具有步收敛性，稳定性高，而且不需要任何外来参数。(The Conjugate Gradient method is a method between the steepest descent method and the Newton method. It only needs to use the first derivative information, but overcomes the shortcoming of the steepest descent method and avoids the need for the Newton method to store. And the disadvantage of calculating the Hesse matrix and inverting, the conjugate gradient method is not only one of the most useful methods for solving large linear equations, but also one of the most effective algorithms for solving large-scale nonlinear optimization. Among various optimization algorithms, the conjugate gradient method is a very important one. The advantage is that the required amount of storage is small, step convergence, high stability, and no external parameters are required.)

A set of graphics and chart controls based on Java and Android. At present, this set of charts mainly includes the following components: gird chart line charts, including single line charts and stick charts, including basic bar charts and special bar charts to support the display of K-line or candle stick-chart branches. Pie chart or pizza chart includes basic pie chart and segmented pie chart radar chart or spider web chart including area radar chart

说明：  一个很好的用VC++编写的"显示多姿多彩的动画图标"源代码.(A good written using VC++ &quot display colorful animated icons&quot source code.)

雷达动目标回波仿真，进一步考虑LFM调频脉冲串，仿真一个运动目标的回波，以及通过脉冲压缩和FFT速度估计的过程。(Radar moving target echo simulation, further considering LFM frequency modulation pulse train, simulation of a moving target echo, as well as through pulse compression and FFT speed estimation process.)

只要你添加本章的内容到你希望联机的游戏上，再利用第七章编程的思想，任何简单的游戏，你都可以轻松地实现联机。-this chapter as long as you are adding to the content you want online games, we can use Chapter VII of programming ideas, any simple game, you can easily realize on-line.

说明：  无线传感器网络数学优化模型程序，里面详细记载了WSN的成簇数学模型 (Wireless sensor networks mathematical optimization model program, which documented the WSN clusters of mathematical model)

详细介绍cad转mapgis的过程及方法。-Cad details mapgis to the process and methods.

用隐马尔科夫模型进行未来天气的预测，并设计了一个GUI的交互界面(A hidden Markov model is used to predict the future weather, and a GUI interface is designed.)

改程序包括了四种数字水印的隐写分析。四种方法都还不错。(Reform program, including four digital watermarking steganalysis. Four methods are pretty good.)