Now consider the following definitions of the new terms.

The following definitions apply to angles in this 0 - 90 range.

In particular we may use either of the two following definitions which are equivalent.

The following definitions are from a North American point of view.

To prove the Price equation, the following definitions are needed.

The following definitions use the notations shown in the figure.

The following definitions focus on the relation between learning object and digital media.

In the list below, the following definitions have been used:

The following definitions follow the treatment in Baader et al.

These changes can be seen from comparison of the following definitions.