Positive definite operator
[计] 正定算子
🧩 词语组成解析
positive
['pɑzətɪv]
adj. 积极的;确实的，肯定的;[数]正的;[医]阳性的;
n. 正面;正片;[语]原级形容词;[数]正量;
posit肯定+ive形容词后缀 → 肯定的；积极的
🗣️ 情景例句
Yes. That would be much better.
行，那样也好。
He knows enough that can live and hold his peace.
见多识广者沈默寡言。
And I can't find her passport anywhere. So she must have taken that too.
而且我在哪都找不到她的护照，所以她一定也带去了。