Study on the Huihui Lifa Collected by Nanjing Library
Tao Peipei · Studies in the History of Natural Sciences · 2003
The Huihui Lifa hand-copied in the Qing dynasty was recently found among the collection of Nanjing Library. In this version of Huihui Lifa, there are ten tables which were left out in other versions of Mingshi system, as well as the complete jiaci fa text and two attached examples. jiaci fa is the peculiar conversion of date in Huihui Lifa of Mingshi system. In Mingshi, the text of jiaci fa is not complete and has an error. That makes scholars feel puzzled. This article studies the correctness of jiaci fa in the Huihui Lifa collected by Nanjing Library. It points out that the jiaci fa in the version can get correct result. The article also makes a deduction on the probable compiler of the Huihui Lifa kept in the Nanjing Library.