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fix #15
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LingDong- authored Jul 22, 2020
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4 changes: 2 additions & 2 deletions 03 算術第三.md
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吾聞有善詼諧者注此解曰。今有能禽獸語者。申其令。雉獨立。兔人立。是時足數為向者之半。故曰`除「足」以二`。是人又有令曰。雉兔復各舉一足。故曰`減其以「頭」`。雉雙足皆舉。遂仆於地。兔尚有一足。故數是時之足。乃得兔之數。既知兔幾何。則雉易矣。`減「頭」以「兔」`可得。

兔善好逑。乃有劉勝之風流。雉稱佳味。遂遭酈生之慘禍。主人旬日復臨。上見頭五百七十九。下見足二千二百八十三。問何以編程求雉兔之數。曰。但易首句可矣。
兔善好逑。乃有劉勝之風流。雉稱佳味。遂遭酈生之慘禍。主人旬日復臨。上見頭五百七十九。下見足二千二百八十四。問何以編程求雉兔之數。曰。但易首句可矣。

```
吾有二數。曰五百七十九。曰二千二百八十三。名之曰「頭」曰「足」。
吾有二數。曰五百七十九。曰二千二百八十四。名之曰「頭」曰「足」。
```

遂得雉一十六。兔五百六十三。遑論頭足之多少。唯易一句。變數之用。不亦妙乎。
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