How to calculate the area between two functions?

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Andrea Mira
Andrea Mira 2021-3-24
回答： darova 2021-3-24
Hi!!
I'm new in Matlab. If someone could help me I will be grateful.
I am interested in calculating the area between the function and the blue horizontal line (in the figure this area is colored red).
The black vertical lines drawn in paint are the lateral limits of the area (points of intersection of the function with the horizontal blue line)
figure (4);
scatter(Time,dmin); % x axis=Time % y axis= dmin (minimum distance)
grid
hold on
plot([-40,40],[0.5,0.5],'b-','linewidth',2) %blue horizontal line
hold off
Thanks in advance!

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回答（1 个）

darova
darova 2021-3-24
Simply use trapz

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