Daniel Cellucci wrote: > warning: symmetry operation # N not allowed. fractional translation: > 0.5000000 -0.5000000 0.5000000 in crystal coordinates http://www.quantum-espresso.org/user_guide/node50.html#SECTION0001110200000000000000 P. -- Paolo Giannozzi, Democritos and University of Udine, Italy