Concave function
[计] 凹函数
🧩 词语组成解析
concave
['kɔn'keiv]
n. 凹面，成凹形;
adj. 凹的;
vt. 使成凹形;
🗣️ 情景例句
Good morning. My name is Richard Stewart.
早安。我叫Richard Stewart。
To pay a person in his own way.
以其人之道还治其人之身。
Certainly, Dad.
当然可以，爸爸。