| FreeMat
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Section: Object Oriented Programming
This is a method for a class that is invoked to concatenate two or more variables of the same class type together. Besides being called when you invoke
c = vertcat(a,b,c)
 when a is a class, it is also called for 
c = [a;b;c]
when one of the variables is a class. The exact meaning of vertical concatenation depends on the class you have designed.