北大汉简中的数术书,现存竹简约1600枚,估计缀合后约900枚,几乎占全部竹简的将近一半。这批简文多有自题的书名,对日书的分类定名大有帮助。简文经陈侃理博士初步整理,分为八种,长简三种(前三种),中长简五种 North Han Dynasty Jianshu Shu Shu, the existing bamboo simple 1600, estimated after the conjugate about 900, accounting for almost all of the bamboo slips nearly half. Many of these essays have the title of the title, the classification of the book will be of great help. Jane by Dr. Chen Kanli preliminary sorting, divided into eight kinds, three kinds of long bamboo (the first three), long in five