Check whether two zeros and poles descriptions are identical
encapsulated operator function '==' import Modelica; import Modelica.Math; import Modelica_LinearSystems2.ZerosAndPoles; input ZerosAndPoles zp1 "Zeros-and-poles data record 1"; input ZerosAndPoles zp2 "Zeros-and-poles data record 2"; input Real eps(min = 0) = 0 "Two numbers n1 and n2 are identical if abs(n1-n2) <= eps"; output Boolean result "= zp1 == zp2"; end '==';