For non commutative operators printing can be determined by the left or right binding.
For example (a-b)-c is printed as a-b-c (flag set).
But a/b/c could be ambiguous so (a/b)/c is printed with brackets (flag not set).
Namespace:
SingularSys.JepAssembly: Jep (in Jep.dll) Version: 1.1.0.0 (1.0.0)