kNN

fft离散傅立叶变化，广泛应用数字信号处理中。(Discrete Fourier fft change, the wider use of digital signal processing.)

This code computes the distance and azimuth an earthquake to a station. It is necessary to provide the latitude and longitude bothe for the earthquake and the station.

说明：  遗传算法的一些实现案例，包括函数优化，目标分配等问题(Some implementation cases of genetic algorithm, including function optimization, target assignment and so on)

由低通数字变换为高通（带阻）数字频带的变换示例,附频谱特性图(by low-pass digital transformation of the high-pass (with resistance) digital bandwidth transform example, the map attached spectrum)

自学Matlab必备的60个小程序代码，有助于快速了解掌握Matlab.(60 small self study Matlab code .)

this code calculate the euclidian distance. h = waitbar(0, Distance Computation ) switch nargin case 1

求解EEMD的工具箱，里面包含EEMD主程序，可以直接调用(Solving the EEMD toolbox, which contains the EEMD main program, you can directly call it)

经典的短波信道模拟程序——wattson模型，比较好用，适当设置参数(Classic short-wave channel simulation program- wattson model, easy to use, the appropriate parameter settings)

道路车辆的故障诊断国际标准第四部分－－喷射标准(Road vehicles to international standards of fault diagnosis Part IV- jet standard)

优化问题分类：（非）线性规划、整数规划、0-1 规划、（多）目标规划、（与时间有关的）动态规划、（系数是随机变量的）随机规划。 (Optimization problem categories: (non-) linear programming, integer programming ,0-1 plan, (multiple) goal programming, (and time-related) dynamic programming, (coefficient is a random variable) stochastic programming.)