Roughset_GetRules

三次样条曲线拟合代码，先训练，后差值，计算非常准确(Three times spline curve fitting, the first training, and after, computation is very accurate)

说明：  最小二乘法估算三元二阶方程式系数，用于抛物线曲线拟合(Estimating coefficient of second order equation by least square method)

This program is used to find the union, intersection and exclusive OR for given two sorted arrays.

说明：  用Fortran编程求解简单的一元二次方程案例(Solving quadratic equation of one variable)

这是利用C++ 编的fft(This is the C series fft)

混沌的判断指标Lyapunov指数计算,与理论分析结果相比，可实现对二维数据的聚类。( Chaos indicator for Lyapunov index calculation, Compared with the results of theoretical analysis, Can realize the two-dimensional data clustering.)

在传统Otsu算法的基础上进行了一些改进，提高了算法的性能(Made some improvements on the basis of the traditional Otsu algorithm to improve the performance of the algorithm)

说明：  matlab的adi方法求解偏微分方程，精确度较高(ADI method of MATLAB for solving partial differential equations)

最小二乘支持向量机工具想的设计，及其使用工具箱的指导手册。(The least squares support vector machine tool design think its use toolbox guidance manual.)

数据模型归一化，模态振动，分析了该信号的时域、频域、倒谱，循环谱等,用于信号特征提取、信号消噪。( Normalized data model, modal vibration, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. For feature extraction, signal de-noising.)