Chinese Mathematical Astrology

There are already a number of well-written works on Chinese divination, but none so far deals with the three sophisticated devices that were employed in the Chinese Astronomical Bureau in the eleventh century and for hundreds of years thereafter. Chinese experts applied the methods associated with these devices to weather forecasting and interpretation of human affairs alike. Hidden by a veil of secrecy, these methods have always been relatively little known other than by their names. This is the first book in any language that attempts to make an academic study of these three methods, known as the sanshi (three cosmic boards).