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
Use a dictionary and grammar guide constantly.
经常使用字典和语法指南。
I think you'll make it if we don't get stuck in a traffic jam.
我想，如果我们不碰上交通阻塞，你是可以赶到的。
There is a zoo, an art museum, a boating lake, a smaller lake for model boats and, in winter, an ice-skating area.
还有一个动物园、一座艺术博物馆，一个供人划船用的湖。另有一个比较小的湖，供人们玩模型船艇，冬天就成为滑冰场。