【 在 tgfbeta (右旋肉碱) 的大作中提到: 】
: 我猜co-是来自数学的传统
: sine cosine
: set coset
co-sine是吧,好像是挺有道理的。搜了下,无聊的人不止咱俩啊:
why is sine called sine, and why is cosine called cosine....?
https://answers.yahoo.com/question/index?qid=20100314073722AAM4XjR
更多信息:
https://zhuanlan.zhihu.com/p/146938556--
修改:billybear04 FROM 106.121.132.*
FROM 106.121.132.*