I want to integrate a plot over specified range. i have two seperate arrays i.e. x(t) and y(x) which i already have in a plot. now i want to integrate y(x) over x(t) from x(t1) to x(t2), the area under y(x) over this specified range.
To get a better view, let me elaborate with an example:
t = 0:0.1:2*pi;
x = sin(t);
y = cos(x);
Now the question is how to calculate ∫y.dx from x(t=1) to x(t=2).