Question: Write a function for low-pass IIR filters equivalent of 5th order Butterworth low-pass filter! Don't use MATLAB-Function such as butter besides filter! Write your own

Write a function for low-pass IIR filters equivalent of 5th order Butterworth low-pass filter! Don't use MATLAB-Function such as butter besides filter! Write your own code for IIR Filters in MATLAB.

(Topic: Digital Signal Processing)

cutoff freqeuncy: f_c=4000 Hz

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