中文说明：利用最小二乘算法实现对三维平面的拟合，有较好的参考价值，复化三点Gauss-lengend公式求pi，从先验概率中采样，计算权重，用于时频分析算法，使用matlab实现智能预测控制算法。
English Description：
The 3D plane fitting using least squares algorithm, have a good reference value, complex of three Gauss-lengend formula for PI, sampled from the prior probability, weight calculation, for time-frequency analysis algorithm, using MATLAB to achieve intelligent predictive control algorithm.