NDSolve`FiniteDifferenceDerivative::aord
The arguments to this internal function are incorrect:
NDSolve`FiniteDifferenceDerivative[Derivative[1], Range[10], DifferenceOrder -> -4]The arguments to this internal function are incorrect:
NDSolve`FiniteDifferenceDerivative[Derivative[1], Range[10], DifferenceOrder -> "PseudoSpectral", PeriodicInterpolation -> True][Array[x, 10]]