Just i am wondering how to solve an integration problem in MATLAB for this equation?? here is the problem below
a= 3.43 int Q*n dr
where n dependent variable on r
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Is Q a constant? I'm assuming you mean that n is function of r, like n(r)
Suppose n(r) = r^2 and you want to integrate from [-2,2]
If you don't have a version of MATLAB with integral(), you have options like trapz()
r = -2:0.02:2; n = r.^2; trapz(r,n)