Function process with two complex poles
function fCmplx input Real alfa "Parametro di discretizzazione"; input Real u "Current input"; input Real u_pre1 "Previous input"; input Real u_pre2 "ingresso a 2 passi precedente"; input Real y_pre1 "Previous output"; input Real y_pre2 "uscita a 2 passi precedente"; input Real Ts "Sampling time [s]"; input Real mu "Gain"; input Real xi "Smorzamento"; input Real omegan "Natural pulse"; output Real y "Output"; end fCmplx;