28-12-2014, 12:20 PM
In a language that features recursion, it is necessary to distinguish between the definition of a function and a call to that function. The definition of a function defines how that function behaves. A call to the function creates an "instance" or "activation" of that function. Although a function has only one definition, over time it will have many distinct instances.
Attachment : [attachment=21616]
Attachment : [attachment=21616]