encapsulated operator function '+'
import Modelica;
import Modelica_LinearSystems2.DiscreteStateSpace;
input DiscreteStateSpace dss1 "System 1";
input DiscreteStateSpace dss2 "System 2 is added in parallel to system 1";
output DiscreteStateSpace result(redeclare Real A[size(dss1.A, 1) + size(dss2.A, 1), size(dss1.A, 2) + size(dss2.A, 2)], redeclare Real B[size(dss1.B, 1) + size(dss2.B, 1), size(dss1.B, 2)], redeclare Real C[size(dss1.C, 1), size(dss1.C, 2) + size(dss2.C, 2)], redeclare Real D[size(dss1.D, 1), size(dss1.D, 2)], redeclare Real B2[size(dss1.B2, 1) + size(dss2.B2, 1), size(dss1.B2, 2)]) "= dss1 + dss2";
end '+';