gaosi

说明：  基于matlab的LDPC码的encoding和decoding的程序，强烈推荐初学者学习参考(Matlab based on the LDPC code encoding and decoding procedures, strongly recommended reference for beginners to learn)

用MATLAB的脚本语言M语言编写的，用于在MATLAB环境下实现帕笛近似（高阶模型简化降阶）的程序源代码，可以在MATLAB环境下直接运行。(MATLAB M scripting language language, MATLAB environment for the realization of Palau under Di approximation (high-order model to simplify Reduction) program source code, in the MATLAB environment direct operation.)

该PPT详细介绍了MATLAB的符号运算(the PPT introduced MATLAB symbolic operation)

电磁波、声波或地震波等数值模拟中常常会用到有限差分法，但是很多文章都只是泛泛而谈时间2阶，空间4阶等等如何用公式，本文给出了任意阶精度的泰勒展开与迭代公式。(Numerical simulation of electromagnetic, acoustic or seismic waves will often use the finite difference method, but many articles are just generalities time two bands, space, etc. How to order 4 formula, this paper presents the accuracy of any order Taylor expansion and iterative formula.)

Finance-Stock software system

基于KL变换的目标识别技术，个人认为效果比神经网络要好(KL transform based target identification technology, think better results than the neural network)

比较matlab中ceil()、floor()、round()等的量化误差大小。并比较不同的量化位数的误差(Compare matlab in ceil (), floor (), round (), etc. quantization error size. And comparing different error of quantization bits)

低通滤波器的源程序，计算低通阶跃高低阻抗形式，由指标来确定高低阻抗的长度(Source of low-pass filter to calculate the level of resistance in the form of low-pass step by the indicators to determine the length of high and low impedance)

复杂网络的小世界模型动态行为的分析，近代复杂网络的开篇(the dynamic of small world network)

SPT 方式最短路径问题，很好的matlab代码(SPT way shortest path problem, the M-file)