As in the two-dimensional case, each axis becomes a number line.

In this appendix it is assumed to be a two-dimensional case.

It is seen that The scale factors and are the same as in the two-dimensional case.

The two-dimensional case is the one referred to most frequently.

The symmetry that exists in the two-dimensional case no longer holds.

The outer distortion can also be characterized by means of an inequality similar to that given in the two-dimensional case.

On the other hand, in the two-dimensional case the Ising model is exactly soluble.

In the two-dimensional case, the third of de Bruijn's results is easy to visualize.

In the two-dimensional case it is called the minimum bounding rectangle.

It is a two-dimensional case of the general n-dimensional phase space.