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zpbutt Scilab Group Scilab Function zpbutt
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zpbutt - Butterworth analog filter
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[pols,gain]=zpbutt(n,omegac)
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n : integer (filter order)
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omegac : real (cut-off frequency in Hertz)
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pols : resulting poles of filter
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gain : resulting gain of filter
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computes the poles of a Butterworth analog filter of order n and cutoff
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frequency omegac transfer function H(s) is calculated by