中文说明：复化三点Gauss-lengend公式求pi，采用了小波去噪的思想，D-S证据理论数据融合，FIR 底通和带通滤波器和IIR 底通和带通滤波器，包含特征值与特征向量的提取、训练样本以及最后的识别，验证可用。
English Description：
Idea of complex three Gauss-lengend formula for PI, the wavelet denoising, D-S evidence theory data fusion, at the bottom of the fir pass and band-pass filter and IIR bottom pass and band-pass filter, contain eigenvalues and eigenvector extraction, training samples and the final recognition and verification is available.