天学会通
薛凤祚
3 chapters·4,750 characters·Classical Chinese · Public Domain
一卷。清薛凤祚撰。是书本穆尼阁《天步真原》而作,在于介绍推算交食之法。其法按年月日时度数,逐次检取角度加减而得食分时刻方位,堪称简捷精密。有乾隆朝刊本,八千卷楼有抄本。
Chapters (3)
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