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A simple algebraic calculation does not work properly!
syms dt y y0 muY(y) f=-(4*muY(y)-7677*dt*diff(muY(y),y,y)+4434*y*muY(y)^2-4212*y0*muY(y)^2 +332*y^2*diff(muY(y),y,y))/(48*dt^(3...

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