勾股

Chinese

		the shorter leg of a right triangle	the longer leg of a right triangle
trad. (勾股)		勾	股
simp. #(勾股)		勾	股
alternative forms		句股

Pronunciation

• Mandarin

  (Pinyin): gōugǔ

  (Zhuyin): ㄍㄡ ㄍㄨˇ

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• Mandarin
  • (Standard Chinese)⁺
    • Hanyu Pinyin: gōugǔ
    • Zhuyin: ㄍㄡ ㄍㄨˇ
    • Tongyong Pinyin: gougǔ
    • Wade–Giles: kou¹-ku³
    • Yale: gōu-gǔ
    • Gwoyeu Romatzyh: gouguu
    • Palladius: гоугу (gougu)
    • Sinological IPA ^(key): /koʊ̯⁵⁵ ku²¹⁴⁻²¹⁽⁴⁾/

Noun

勾股

1. (geometry) the longer and shorter legs of a right triangle
2. (geometry) right triangle
3. (geometry) mathematics involving right triangles: trigonometry, especially (historical) traditional Chinese methods of trigonometry
4. (geometry) related to right triangles: trigonometrical

Derived terms

• 勾股定理 (gōugǔ dìnglǐ)
• 勾股弦
• 勾股形
• 勾股數 / 勾股数 (gōugǔshù)

 

References

• Tian Miao's "A Formal System of the Gougu Method" in The History of Mathematical Proof in Ancient Traditions, pp. 386–7.