Clear fractions due to the reciprocal, but do not
reduce to lowest integer values.
Planes are written in parentheses, with bars over
the negative indices.
Ex: (hkl) or if h<0, then it becomes
ex: plane A is parallel to x, and intercepts y and
z at 1, and therefore is the (011). Plane B passes through the origin,
so the origin is moved to O’, thereby making the plane the
