function [out]=AddVars(A,B)
%The comment just below the function statement shows as 'help' text: 
%   AddVars adds two variables together.
%   Example:
%      C=AddVars(2,3)

%After a comment gap line, this text doesn't show up in help. 

out=A+B;    %suppress output with ';'

end     % 'end' not required, but always use it. 






