This operator creates and returns a function equal to the union of the functions f1 and f2. The argument functions f1 and f2 must be defined on the same interval. The resulting function is defined on the same interval as the arguments. See also: IloNumToAnySetStepFunction.

This operator creates and returns an interval list equal to the union of the interval lists intervals1 and intervals2. The arguments intervals1 and intervals2 must be defined on the same interval. An instance of IloException is thrown if two intervals with different types overlap. The resulting interval list is defined on the same interval as the arguments. See also: IloIntervalList.