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Jyutping nap1 dat6 sing3
Pinyin āo tū xìng

Definitions (Wiktionary)
  1. noun
    concavity and convexity

凹凸性 [---]

Jyutping
Pinyin āo tū xìng

Definitions (CC-CEDICT)
  1. concavity (math.)
Examples (Wiktionary)
  1. Mandarin
    论文是有关实解析函数在极值点附近的凹凸性的。
    論文是有關實解析函數在極值點附近的凹凸性的。
    lùn wén shì yǒu guān shí jiě xī hán shù zài jí zhí diǎn fù jìn de āo tū xìng de .
    • The journal article was about concavo-convexity of real analytic functions near extremities.