z = DiscreteTransferFunction.z()
Generate the complex variable z=exp(T*s) as a DiscreteTransferFunction. It can be used for generating like
DiscreteTransferFunction dtf = z/(3*z^2 + 2*z +2)
encapsulated function z import Modelica; import Modelica_LinearSystems2.DiscreteTransferFunction; input Modelica.Units.SI.Time Ts = 0; output DiscreteTransferFunction dtf(n = {1, 0}, d = {1}, Ts = Ts) "z"; end z;