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
That's very nice of you, but I really can't.
你太客气了，可我真的非走不可。
You were lucky to find it.
你的运气真好。
Right. They're running and jumping all the time.
对，他们老是跑啊跳的。