> On Sep 30, 2020, at 13:26, skystar <[email protected]> wrote:
> 
> 先收藏关注了,有机会再学习下这本书和你写的代码。想先问下你提到了“更优的天文算法”,如果是按照清朝的历法,那优在哪里?难道是用了清朝的订历方式(如置润的方式,节气的确定),但用了现代的天体运行数据?

我这里说的‘’更优的天文算法‘’是与 calendar(1) 原来的算法相比的。原来 FreeBSD 版本的 calendar(1) 
就包含了太阳和月亮方位计算,但基于经验公式,误差较大(小时量级)。

祝好
Weitian

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