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+q=poly([0 1 1],'s','coeff');
+G=k/q //gain FACTOR=k
+H=1
+T=G/(1+G*H)
+
+zeta=0.5911; //given
+Tp=0.5;
+omegaN=%pi/(Tp*(sqrt(1-zeta^2)))
+disp(omegaN,"omegaN = ")
+disp(omegaN^2," k = ") \ No newline at end of file