【 MATLAB 】freqz 函數介紹（數字濾波器的頻率響應）

freqz Frequency response of digital filter Syntax [h,w] = freqz(b,a,n) [h,w] = freqz(d,n) [h,w] = freqz(___,n,'whole') freqz(___) [h,f] = freqz(___,n,fs) [h,f] = freqz(___,n,'whole',fs) h = freqz(___,

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