Identity matrix
[计] 单位矩阵, 恒等矩阵
🧩 词语组成解析
identity
[ai'dentiti]
n. 身份;[逻]同一性;个性;[数]恒等（式）;
🗣️ 情景例句
it's in the cabinet with the salt and pepper.
应该跟盐和胡椒一起放在橱柜 。
If he doesn't accompany him, I will.
如果他不，我将陪伴他。
She's been there for two months. She's been there since September.
她进校有两个月了。她自9月份起便在那儿学习了。