rotation matrix algorithm

这是一个单片机实用子程序集，有丰富的实用定点数计算，浮点数计算，及控制类子程序！适合单片机开发者参考工具。 该代码执行效率高，通过编译。-This is a single-chip utility subroutine sets, has a wealth of practical fixed-point computing, floating-point calculation, and control of type subroutine! Suitable for single-chip reference tool for developers. Efficient implementation of the code through the compiler.

128点DIT FFT,能实现128点的快速傅里叶变换，对在校的大学生学习，试验很有帮助！-DIT FFT 128 points, 128 points to achieve the fast Fourier transform, to the college students study, test helpful!

The main topic covered is frequency control in power systems. The needed models are derived and the primary and secondary frequency control are studied. A detailed model of the synchronous machine, based on Park’s transformation, is also included. The excitation and voltage control of synchronous machines are briefly described. An overview of load models are also given

二格码转换的算法-two grid transcoding algorithm

用Java语言写的朴树贝叶斯算法包含界面，经过测试，里面有包含有几种数据集可以进行测试，在本地电脑上完成过测试。界面清晰，可以很清楚的观看结果。

四叉树是一种树数据结构，其中每个内部节点正好有四个子节点。四叉树是最重要的

空间5阶WENO格式 时间3阶RK格式 

雅可比算法的算例程序，用简单明了的计算过程展示了雅可比算法的C设计过程。-Jacobi algorithm example program, with a simple and straightforward calculation shows C Jacobi algorithm design process.

它是简单的方法来生成不同的随机字母数字编号在每次运行。你可以使用它在安卓系统、 web 开发和任何其他平台上，根据您的需求。这段代码可以使用作为验证码代码或者像任何其他代码。我敢肯定，它将不会生成两个相同的 alpha 数值数字。

介绍了二分法求解非线性方程的算法，欢迎大家提出宝贵意见。-Introduced the dichotomy of the algorithm for solving nonlinear equations, welcome you to give valuable advice.