Multiply two zeros and poles descriptions (zp1 * zp2)
encapsulated operator function '*' import Modelica; import Modelica_LinearSystems2.ZerosAndPoles; input ZerosAndPoles zp1 "Zeros-and-poles data record 1"; input ZerosAndPoles zp2 "Zeros-and-poles data record 2"; output ZerosAndPoles result "= zp1 * zp2"; end '*';