function tutor = svctutor(arg)



if nargin == 0
   
   % this is the default constructor
   
   tutor.dummy = [];
   tutor       = class(tutor, 'svctutor');
   
elseif isa(arg, 'svctutor');
   
   % this is the copy constructor
   
   tutor = arg;
   
else

   % there are no other constructors
   
   help svctutor
   
end