= = I

I Error = !(tN - to)y"(r) tJ.t = O(tJ.t) I Consequently, the global (i.e., total) error of the explicit Euler FDE is O(tJ.t), which is the same as the order of the finite difference approximation of the exact derivative ji', which is O(tJ.t), as shown in Eq. (7.56).