how to write a new function in matlab code example

Example 1: declaring a function in matlab

%%%% general syntax %%%%%%%%%%%%%
function [return parameters] = name_of_function(attributes)
	%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    body_of_the_function
    %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    
end

Example 2: matlab function

function ave = average(x)
    ave = sum(x(:))/numel(x); 
end