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function Hsos = thissos(Hd, c) %THISSOS Second-order-section version of this class. % Hsos = THISSOS(Hd,C) returns the second-order-section version of the same % class as Hd with coefficients in cell array C. This function is intended % as a helper-function to SOS. % % See also DFILT, SOS. % Author: Thomas A. Bryan % Copyright 1988-2002 The MathWorks, Inc. Hsos = dfilt.df1sos(c{:});