This set of exercises will help you master the relationship between general positions, fractional crystal coordinates, symmetry elements, symmetry operations and space group nomenclature as presented in the main pages of the Internation Tables for Crystallography: Volume I (old version was called Volume A).

In the diagram above, the terms labeled "positions" can also be refered to as fractional crystal coordinates or symmetry operations. The terms headed by "reflection conditions" are described in Precession Photographs and terms at the bottom of the right-hand page are explained in more detail in unit on "Special Positions".