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hasidim
Oct3-10, 09:47 PM
a''[t]+B[t]*a'[t]+A[t]*a[t]==0

a[0] = 10^-9
a'[0]=0

So, I have solved for the values of the coefficients A and B over a given time interval (I HAVE the values of A and B over a time interval!). I have tried to use NDSolve, as one normally would when the coefficients are constant, to solve for a[t].

Any tips would be welcomed!