ms10_1.m

《数字信号处理实验(MATLAB版)》这

a=[1,0,0.34319,0, 0.60439, 0,0.20407];
b=[0.1321,0,  -0.3963,0, 0.3963,0,-0.1321];
rz=roots(b)
rp=roots(a)
freqz(b,a);