QAM

用迭代法解微分方程。例程中是以buck电路为应用对象，使用滑模算法进行控制。(Iterative method for solving differential equations)

说明：  MATLAB编写的有关数学问题的数学函数优化程序，即求函数极值问题的相关程序(MATLAB solving physics problems of extreme values with mathematics)

new way for find wieght in neroal network

In computer science, particle swarm optimization (PSO) is a computational method that optimizes a problem by iteratively trying to improve a candidate solution with regard to a given measure of quality. PSO optimizes a problem by having a population of candidate solutions, here dubbed particles, and moving these particles around in the search-space according to simple mathematical formulae over the particle s position and velocity. Each particle s movement is influenced by its local best known position and is also guided toward the best known positions in the search-space, which are updated as better positions are found by other particles. This is expected to move the swarm toward the best solutions.

测量激光散斑图的统计尺寸，给出散斑二阶统计量的值(speckle size)

有关傅里叶展开式的程序，速度非常快，而且还有相关的实例说明。(About Fourier expansion program, very fast, but also related examples.)

A Guide to MATLAB for Beginners and Experienced Users - Hunt Lipsman & Rosenberg(A Guide to MATLAB for Beginners and Experienced Users- Hunt Lipsman & Rosenberg)

MATLAB simulation of group velocity dispersion in an optical fiber

matlab编程样式指南。matlab编程指导书籍(Matlab programming style guides. Matlab programming guide books)

说明：  提取超声回波信号中回波时移的互相关计算。(Extraction echo ultrasonic echo signals of time-lapse cross-correlation calculation.)