| 《授时历》和《回回历法》中的日食时差算法 |
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| 引用本文： | 唐泉. 《授时历》和《回回历法》中的日食时差算法[J]. 中国科技史杂志, 2007, 28(2): 114-122 |
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| 作者姓名： | 唐泉 |
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| 作者单位： | 咸阳师范学院,数学系,陕西,咸阳,712000 |
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| 基金项目： | 国家自然科学基金;咸阳师范学院引进人才专项科研基金 |
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| 摘 要： | 日食时差算法是日食计算中的核心算法,在日食理论中占有重要地位。对《授时历》和《回回历法》中的时差算法进行比较研究表明,《回回历法》中的时差算法在自变量的完备性、符号的选择以及精度等方面,均明显优于《授时历》,该结论对评价中国和阿拉伯传统日食算法优劣有一定参考意义。
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| 关 键 词： | 日食时差 <授时历> <回回历法> 定朔 食甚 |
| 文章编号： | 1673-1441（2007）02-0114-09 |
| 修稿时间： | 2006-10-12 |
A Study on Shicha Algorithm of Parallax Theory in Shoushi Calendar and huihui calendar |
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| TANF Quani. A Study on Shicha Algorithm of Parallax Theory in Shoushi Calendar and huihui calendar[J]. The Chinese Journal for the History of Science and Technology, 2007, 28(2): 114-122 |
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| Authors: | TANF Quani |
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| Affiliation: | Department of Mathematics, Xianyang Normal University, Xianyang 712000, China |
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| Abstract: | Shicha algorithm of parallax theory plays an important role in solar eclipse theory because it is one of the major algorithms in solar solar eclipse theory. After studying the Shicha algorithm of parallax theory in Shoushi Calendar and Huihui Calendar, this paper points out that Shicha algorithm in Huihui Calendar is better than that of Shoushi Calendar about the completeness of variables, the choice of the sign of Shicha and the procession of Shicha algorithm, thus concluding that it can help us to evaluate objectively the solar eclipse theory of ancint China and Arabia. |
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| Keywords: | Shicha algorithm Shoushi Calendar Huihui Calendar syzygy middle of solar eclipse |
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