复化三点Gauss-lengend公式求pi，构成不同频率的调制信号，关于神经网络控制，实现典型相关分析，用于建立主成分分析模型。- Complex of three-point Gauss-lengend the Formula pi, Constituting the modulated signals of different frequencies, On neural network control, Achieve canonical correlation analysis, Principal component analysis model for establishing.