NARGIN NARGIN Number of Input Arguments

Usage

The special variable nargin is defined inside of all
functions.  It indicates how many arguments were passed
to the function when it was called.  FreeMat allows for
fewer arguments to be passed to a function than were declared,
and nargin, along with isset can be used to determine
exactly what subset of the arguments were defined.
There is no syntax for the use of nargin - it is 
automatically defined inside the function body.
