A function is a procedure that can be called, which returns a value.  Functions can optionally take parameters.
 
A function is a procedure that can be called, which returns a value.  Functions can optionally take parameters.
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There are three types of functions in ADRIFT.  These are:
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There are four types of functions in ADRIFT.  These are:
    
* [[Item functions]]
 
* [[Item functions]]

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