滤波器矩阵综合程序，本程序可以根据性能要求综合目标滤波器的n+2维耦合矩阵-filter synthesize

利用最小二乘法拟合多项式的算法，该算法适用于将任意一组数据拟合成任意次数的多项式-By least squares polynomial algorithm, which applies to any number of times to synthesize a set of data prepared by an arbitrary polynomial