唐代行星理论中的乘数与除数  

Chenshu and Chushu of Planetary Theory in the Tang Dynasty

作　　者：唐泉[1] 

机构地区：[1]咸阳师范学院数学与信息科学学院,陕西咸阳712000

出　　处：《内蒙古师范大学学报（自然科学汉文版）》2011年第6期643-648,共6页Journal of Inner Mongolia Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(11073016);中国博士后科学基金特别资助项目(200801435);中国博士后科学基金面上资助项目(20080431244)

摘　　要：通过考察唐代历法中的行星运动理论,对《大衍历》中的"乘数"、"除数"和《宣明历》中的"差率、差数"的涵义给出合理的解释:《大衍历》中的乘数与除数是进退定数转化为进退变率的系数,《宣明历》中的差率与差数是五星定见算法中太阳改正算法中的系数,这两组系数的设置较好地反映了唐宋时期行星理论演进的轨迹.In this paper,the planetary theory of Tang Dynasty was studied and some reasonable explanation to chengshu and chushu in Dayan li and chalv and chashu in Xuanming Li were given. Chengshu and chushu in Dayan li were coefficients of transformation from jintuidingshu to jintuibianlv; Chalv and chashu of Xuanrning Li were coefficients of correcting algorithm for solar center equation when calendarmakers calculated the moment of corrected appearance. The design of these data reflected clearly the track of the planetary theory of Tang and Song Dynasty.

关 键 词：大衍历 宣明历 行星理论 乘数 除数 

分 类 号：P1-092[天文地球—天文学]