中国古代历法中,定朔是一个极其重要的概念,定朔算法是古代历谱编制的直接依据。从中国古代定朔算法模型入手,清晰梳理了宋代历法中的定朔算法。分析每部历法的定朔推步过程,并将其用现代数学公式完整地表达出来。
The real new moon is an extremely important concept in Chinese ancient calendars.The real new moon algorithm is the direct foundation in ancient Ephemeris arranging.With the algorithm model of the real new moon in the ancient time of China,the algorithm of the real new moon in Song dynasty is combed clearly.The computation processes in each calendar are analyzed and expressed with mathematical formula completely.