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Scope: Hai Dao Suan Jing Request type: Paragraph |
Condition 1: Contains text "從句端望谷底入下股九尺一寸" Matched:1. |
Total 1 paragraphs. Page 1 of 1. |
《海島算經 - Hai Dao Suan Jing》 | [Three Kingdoms] 263 | Books referencing 《海島算經》 Related resources |
4 | 海島算經: | 今有望深谷,偃矩岸上,令句高六尺。從句端望谷底,入下股九尺一寸。又設重矩于上,其矩間相去三丈。更從句端望谷底,入上股八尺五寸。問谷深幾何? |
答曰:四十一丈九尺。 | ||
術曰:置矩間,以上股乘之,為實。上、下股相減,餘為法,除之。所得以句高減之,即得谷深。 |
Total 1 paragraphs. Page 1 of 1. |
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