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): ㄍㄡㄍㄨˇ

Mandarin
- (Standard Chinese)⁺
  - Hanyu Pinyin: gōugǔ
  - Zhuyin: ㄍㄡㄍㄨˇ
  - 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

(geometry) the longer and shorter legs of a right triangle
(geometry) right triangle
(geometry) mathematics involving right triangles: trigonometry, especially (historical) traditional Chinese methods of trigonometry
(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.

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