Euclides 歐幾里得
,
Ji he yuan ben 幾何原本
,
1966
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21
(一)
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(二)
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(三)
26
(四)
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(五)
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(六)
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(七)
30
(八)
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(八四
[84]
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幾何原本 卷二之首
"
xlink:href
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<
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xml:space
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s
>
<
s
xml:id
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">任直、斜角。</
s
>
<
s
xml:id
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s
>
<
s
xml:id
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xml:space
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">從庚點作戊己、辛壬、兩線。</
s
>
<
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xml:id
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">與方形邊平行。</
s
>
<
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<
lb
/>
形。</
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<
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xml:id
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xml:space
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<
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xml:id
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xml:space
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<
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xml:space
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<
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">任偕一角線方形。</
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>
<
s
xml:id
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">為罄
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折形。</
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">如辛己、庚乙、兩餘方形。</
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<
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xml:space
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">偕己壬角線方形。</
s
>
<
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">同在癸子丑圜界內者。</
s
>
<
s
xml:id
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">是癸子丑罄折形也。</
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>
<
s
xml:id
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">用辛戊角
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線方形、倣此。</
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