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)
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(四)
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(五)
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(六)
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(七)
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(八)
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幾何原本 卷一
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<
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xml:space
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數。</
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xml:space
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<
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<
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所存邊數、是本形之數。</
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二邊。</
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<
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">卽是本形二數。</
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xml:space
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</
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<
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<
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<
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形作兩對角線。</
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<
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