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1  | 瓜豆同日發芽 生蔓瓜蔓初日長一尺六寸以後每日所長遞減半豆蔓初日長一寸以後 每日所長遞加半二蔓第幾日相等 |
| 2 | 蔡錫勇 |
| 3 | 答曰五日 |
| 4 | 解曰此即連比例率 數瓜蔓初日所長為末率豆蔓初日所長為首率得若干率數即二蔓相等 日數以代數明之 |
URN: ctp:ws721697
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