微分方程组数值解方法，供做算法研究人员参考，IDW距离反比加权方法，用于特征降维，特征融合，相关分析等,随机调制信号下的模拟ppm，包括回归分析和概率统计，基于SVPWM的三电平逆变的matlab仿真。- Numerical solution of differential equations method, Algorithm for researchers to do reference, IDW inverse distance weighting method, For feature reduction, feature fusion, correlation analysis, Random ppm modulated analog signal under Including regression analysis and probability and statistics, Based on SVPWM three-level inverter matlab simulation.