The above example shows how indexed arrays and parallel arrays are declared by specifying upper and lower bounds for each dimension. A short-hand is provided for degenerate dimensions that contain only a single index. The following two declarations are equivalent.
region east = [1..n, n..n]
East = [1..n, n];
This short-hand is legal anywhere a range is needed to specify upper and
lower bounds. In particular, it can be used to declare indexed arrays,
parallel arrays, or dynamic regions (see Section 3.5.4).