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百分度

百分度[1][2](英語:gradian)又稱百分之一直角[3](gon,grade),是一种的測量單位,定義一圈400百分度,即把一個圓切成400等分,一個直角等於100百分度。此測量單位是嘗試將用十進制表達。

百分度一般生活中不常用到,並未被普遍採用,目前只有一些歐洲國家的建築土木工程測量師會使用百分度做角測量。在許多工程用計算機上有360 Deg 和百分度 Grad 的轉換功能。

相同角度的轉換表
角度單位
角度
弧度
百分度

參考

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  1. ^ 約翰.布雷克伍德. 數學也可以這樣學. 商周出版. 2022: 83 [2023-08-24]. ISBN 9786263180703. (原始内容存档于2023-08-25). 
  2. ^ Eddie Woo. 喚醒大腦裡的數學家. 臉譜出版社. 2020: 194 [2023-08-24]. ISBN 9789862358634. (原始内容存档于2023-08-24). 
  3. ^ 國家教育研究院; 黃偉彥, 陳永芳, 王明杰等. 林慶隆等 , 编. 物理學名詞(第五版). 元照出版公司. 2015: 111 [2023-08-24]. ISBN 9789860464627. (原始内容存档于2023-08-24). 

延伸閱讀

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  • ISO 31-1
  • ISO/IEC 80000-3
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百分度
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