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I've got two new-style MATLAB classes - B & C , both concrete subclasses of an abstract parent, A . A is a subclass of hgsetset (handle class). I'd like to put them in an array in MATLAB, and treat them both as A s. They are defined, roughly, as: classdef A <hgsetget methods function foo(this) %does some common stuff, then this.fooWorker; end end %public Methods methods(Abstract, Access=protected) fooWorker(this); end %abstract Methods; end classdef B < A methods(Access=protected) function fooWorker(this) %implementation end end %protected Methods; end However if I do this: arr = [b c]; % where b & c are objects of type B & C respectively. arr(1).foo; arr(2).foo; MATLAB will tell me both are of type B , and if I call the abstract method from A that both implement ( foo ), it executes, essentially, two copies of b . However, if I reverse the order: arr = [c b]; It tells me that both are of type C , and if I try to execute foo on both, it executes, essentially two copies of c . Any ideas how to use subclasses in a polymorphic way? I know that I can put them in a cell array and get 90% of what I need. But that is a bit of a kludge.

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