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
I would like to call a meeting.
我想召开个会议。
It is easier to raise the devil than to lay him.
养虎易，驯虎难。
That's all right.
没关系。