Deletion of Process equation

Comment: Nominator neglected to mention that this terminology has also not gained traction with biologists or dynamic systems theorists. The primary meaning of ''process equation'' is, well, an equation which governs a physical process. This particular recursive relation may describe some systems (those figures are pretty generic), but the mapping of this name to this relation is not |in common currency
Stance: delete
Cited policy: Wikipedia:Notability (WP:N)