temp.m

有限差分

function [avg,med] = newstats(u) % Primary function
% NEWSTATS Find mean and median with internal functions.

avg = a(u);
med = b(u);

function a = a(v)            % Subfunction
% Calculate average.
a = v+2;
end
function m = b(v)          % Subfunction
% Calculate median.
m=v-3
end