What is the interpretation of trapz(x,cumtrapz(x,y))?

x = (-12:12);
y = zeros(1,numel(x));
y(12:14) = 0.33;  
z = trapz(x,cumtrapz(x,y));

edit: Alternatively what does the integral of a cumulative integral mean?

[KSSV]

Read about cumtrapz HERE: https://in.mathworks.com/help/matlab/ref/cumtrapz.html

Answer 1

[Walter Roberson]

It would effectively be a double integration over the same domain