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
I love my school. I have so many good friends there now.
我喜欢我的学校。我现在有那么多好朋友在那里。
A hen is on her eggs.
母鸡蹲在它的蛋上。
It was his job to repair bicycles and at that time he used to work fourteen hours a day.
他那时的工作是修理自行车，并且通常是一天工作14个小时。