• The function alg_zr converts a zero relation algebra into the intermediary format used by the CREP-function get_alg.

• As the intermediary format does not support labels for arrows such labelling is replaced by a consecutive enumeration of the arrows. During this process, the function also performs a consistency check on the resulting zero relations to ensure, that each of these actually describes a path in the underlying quiver of the algebra.

• In particular, the functions alg_zr and get_alg together can be used to obtain a graphical display of a zero relation algebra respectively its quiver. It will be noticed, that the points always are arranged in a circle. However, the graphical editing facilities of the function get_alg can be used to obtain a more pleasing result.

SEE ALSO: get_alg, get_alg/dataformat