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Find numerator and denumerator

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Andrew
Andrew 2013-4-17
Dear community,
How can I find filter coefficients (denumerator and numerator) of the butterworth filter?
Thanks in advance,
Andrew

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Mats
Mats 2013-4-17
[B,A] = butter(n,Wn)
B are the coefficients for the numerator, and A the coefficients for the denominator with order n filter at normalized cutoff frequency Wn.

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