中文说明：插值与拟合，解方程，数据分析，供做算法研究人员参考，利用自然梯度算法，本程序的性能已经超过其他算法，复化三点Gauss-lengend公式求pi，双向PCS控制仿真。
English Description：
Interpolation and fitting, solving equations, data analysis, for algorithm researchers can make a reference to the natural gradient algorithm and the performance of the program has more than other algorithm, the complex three Gauss-lengend formula for PI, two-way PCs control simulation.