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《#高麗史50卷-志4-歷1》[View] [Edit] [History]
1 | 求入蝕限。 |
2 | ○其入交定日及餘秒如前限已上後限已下者入蝕限。 望入蝕限則月蝕朔入蝕限則日蝕也。 月在陰歷則日入蝕限如後准已下為交後前准已上者以 中日及餘秒餘為交前。 限滿全者皆退之從餘為去交前後分。 此蝕限術舉其常率。 若* 須審定在蝕分術之中當可求其置交前後定分十一乘之如七千三百三除之為去交定也。 在蝕分術之中當可求其定也。 度數不盡以統法乘之複除為餘。 |
URN: ctp:ws934147
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