|IMPLICIT ORDER [ONE|TWO] [zone_selector]|
This keyword sets the order of the implicit time marching scheme. The default is first order. When TWO is specified, second-order time marching will be used.
Second-order time marching may be used with both structured and unstructured grids, and may be used in combination with Global Newton time marching. With structured grids, it may be used with any implicit operator except MacCormack's modified approximate factorization procedure (IMPLICIT MACCORMACK).
See Also: IMPLICIT, NEWTON, TEMPORAL