PRICES MAY VARY. Doctor Andy’s Rule Language (DARL) is a computer language intended to encode knowledge as fuzzy logic rules. It is an extremely simple language, and designed to be used with little training. It is intended to be a simple way to represent business or professional knowledge of both logical and numeric kinds, while permitting the representation and processing of various kinds of uncertainty. This book describes the technologies behind DARL, the language itself, and how to write you