Hello Fausto,
In order to plot the output of midpoint method, the data corresponding to the variable to be plotted needs to be included in the logic. For instance if the required data to be plotted is the Area of rectangle (S) per each interval (m), we need to track the area of rectangle in each iteration within the for loop as illustrated below:
for i = 1:m
%Calculate the area of a rectangle
S = S + (h) * (f((a+(a+h))/2));
area(i) = (h) * (f((a+(a+h))/2)); % Track area of rectangle in each iteration.
a = a+h;
end
plot(1:m, area); % Plots area of rectangle per each iteration.
You could have a look at the following resources which implements the similar task:
Hope this helps!
