授時暦における冬夏至計算

抄録

The purpose of this paper is to classify the patterns of calculation of the winter or summersolstice in Shou-shi-li, the last method of establishing the calendar before the Ming dynasty in China, and to make a strict interpretation of the original text on the basis of this classification. Some parts of the text have ambiguous expressions and we can not interpret them when we only consider each phrase in question. Our approach is valid for this question.